"Design of Traction Drives"
Stuart H. Loewenthal and Erwin V. Zaretsky NASA RP-1154, 1985
"Tribology: The Story of Lubrication and Wear"
Donald H. Buckley, William R. Jones, Jr., Harold E. Sliney, Erwin V. Zaretsky, Dennis P. Townsend, and Stuart H. Loewenthal NASA TM-101430, 1985
"Rolling-Element Bearings"
Bernard J.Hamrock and William J. Anderson NASA-RP-1105, 1983 (See note** below)
"Friction, Wear and Lubrication in Vacuum"
Donald H. Buckley NASA-SP-277, 1971 (See note** below)
"Advanced bearing technology"
Anderson, W. J.; Bisson, E. E. NASA-SP-38, 1964 (See note** below)
"Fastener Design Manual"
Richard T. Barrett NASA RP-1228, 1990
"NASA Space Mechanisms Handbook and Reference Guide"
Robert Fusaro, editor NASA/TP-1999-206988, 1999 (ITAR restricted. Limited to US only. Not downloadable.)
** Note: Firefox Browser users may get a "file is damaged" error. If so:
(1) Right-click on the link and Choose "Save Link As"
(2) Change the filename extension from htm to pdf.
(3) Save the file to your hard disk, then open it.
"Lubricated Bearing Lifetimes of a Multiply Alkylated Cyclopentane and a Linear Perfluoropolyether Fluid in Oscillatory Motion at Elevated Temperatures in Ultrahigh Vacuum"
Braza, Joseph; Jansen, Mark, J.; Jones, William, R., Jr. NASA/CR-2009-215637, May, 2009
"Performance and Analysis of Perfluorinated Grease Used on Space Shuttle Actuators"
Morales, Wilfredo; Street, Kenneth, W., Jr.; Zaretsky, Erwin, V. NASA/TM-2009-215605, April, 2009
"Intermetallic Nickel-Titanium Alloys for Oil-Lubricated Bearing Applications"
DellaCorte, C.; Pepper, S.,V.; Noebe, R.; Hull, D.,R.; Glennon, G. NASA/TM-2009-215646, March, 2009
"Variable/Multispeed Rotorcraft Drive System Concepts"
Stevens, Mark, A.; Handschuh, Robert, F.; Lewicki, David, G. NASA/TM-2009-215456; ARL-TR-4758, March, 2009
"Resilient Flexible Pressure-Activated Seal"
Bruce M. Steinetz and Patrick J. Dunlap, Jr. US Patent No. 7,497,443 Issued: March 3, 2009
"Seal Technology Development for Advanced Component for Airbreathing Engines"
Snyder, Philip, H. NASA/CR-2008-215479, December, 2008
"Preliminary Test Results of a Non-Contacting Finger Seal on a Herringbone-Grooved Rotor"
Proctor, Margaret, P.; Delgado, Irebert, R. NASA/TM-2008-215475, November, 2008
"Performance of Subscale Docking Seals Under Simulated Temperature Conditions"
Smith, Ian, M.; Daniels, Christopher, C.; Dunlap, Patrick, H.; Steinetz, Bruce, M. NASA/TM-2008-215428, October, 2008
"Adhesion of Silicone Elastomer Seals for NASA’s Crew Exploration Vehicle"
de Groh, Henry, C., III; Miller, Sharon, K., R.; Smith, Ian, M.; Daniels, Christoper, C.; Steinetz, Bruce, M. NASA/TM-2008-215433, October, 2008
"2007 NASA Seal/Secondary Air System Workshop"
Steinetz, Bruce, M.; Hendricks, Robert, C.; Delgado, Irebert NASA/CP-2008-215263-VOL1, October, 2008
"Concepts for Variable/Multi-Speed Rotorcraft Drive System"
Stevens, Mark, A.; Handschuh, Robert, F.; Lewicki, David, G. NASA/TM-2008-215276; ARL-TR-4564; AHS 080273, September, 2008
"Adsorption of Water on Simulated Moon Dust Samples"
Goering, John, P.; Sah, Shweta; Burghaus, Uwe; Street, Kenneth, W., Jr. NASA/TM-2008-215279, September, 2008
"Signal Detection Theory Applied to Helicopter Transmission Diagnostic Thresholds"
Dempsey, Paula, J.; Keller, Jonathan, A.; Wade, Daniel, R. NASA/TM-2008-215262; AMRDEC PAO Control Number FN 3597, July, 2008
"Fatigue Crack Growth Behavior Evaluation of Grainex Mar-M 247 for NASA’s High Temperature, High Speed Turbine Seal Test Rig"
Delgado, Irebert, R.; Steinetz, Bruce, M.; Rimnac, Clare, M.; Lewandowski, John, J. NASA/TM-2008-215287, August, 2008
"Liquid Space Lubricants Examined by Vibrational Micro-Spectroscopy"
Street, Kenneth, W., Jr. NASA/TM-2008-215184, July, 2008 "Compliant Foil Journal Bearing Performance at Alternate Pressures and Temperatures" Bruckner, Robert, J.; Puleo, Bernadette, J. NASA/TM-2008-215219, May 2008
"Gas Foil Bearing Misalignment and Unbalance Effects" Howard, Samuel, A. NASA/TM-2008-215176, May 2008
"Misalignment in Gas Foil Journal Bearings: An Experimental Study" Howard, Samuel, A. NASA/TM-2008-215223, May 2008
“A Foil Thrust Bearing Test Rig for Evaluation of High Temperature Performance and Durability,” Dykas, Brian D.; Tellier, Daniel W. ARL-MR-0692, April, 2008
"A Review of Engine Seal Performance and Requirements for Current and Future Army Engine Platforms"
Delgado, Irebert, R.; Proctor, Margaret, P. NASA/TM-2008-215161; ARL-TR-4201; AIAA-2007-5734, March, 2008
"Preliminary Analysis for an Optimized Oil-Free Rotorcraft Engine Concept"
Howard, Samuel, A.; Bruckner, Robert, J.; DellaCorte, Christopher; Radil, Kevin, C. NASA/TM-2008-215064; ARL-TR-4398, March 2008
"Characteristics of Elastomer Seals Exposed to Space Environments"
Daniels, Christopher, C.; de Groh, Henry, C., III; Dunlap, Patrick, H., Jr.; Finkbeiner, Joshua, R.; Steinetz, Bruce, M.; Bastrzyk, Marta, B.; Oswald, Jay, J.; Banks, Bruce, A.; Dever, Joyce, A.; Miller, Sharon, K.; Waters, Deborah, L. NASA/TM-2008-215005; AIAA-2007-5741, January, 2008
"Probabilistic Analysis of Space Shuttle Body Flap Actuator Ball Bearings"
Oswald, Fred, B.; Jett, Timothy, R.; Predmore, Roamer, E.; Zaretsky, Erwin, V. NASA/TM-2008-215057, January, 2008
"Permanent Magnetic Bearing for Spacecraft Applications"
Morales, Wilfredo; Fusaro, Robert; Kascak, Albert NASA/TM-2003-211996-REV1, January, 2008
"Relation Between Hertz-Life Exponent, Ball-Race Conformity, and Ball Bearing Life"
Zaretsky, Erwin, V.; Poplawski, Joseph, V.; Root, Lawrence, E. NASA/TM-2008-214265, January, 2008
"Permanent Magnetic Bearing for Spacecraft Applications"
Morales, Wilfredo; Fusaro, Robert; Kascak, Albert NASA/TM-2003-211996-REV1, January, 2008
"Experimental Investigation of Elastomer Docking Seal Compression Set, Adhesion, and Leakage"
Daniels, Christopher, C.; Oswald, Jay, J.; Bastrzyk, Marta, B.; Smith, Ian; Dunlap, Patrick, H., Jr.; Steinetz, Bruce, M. NASA/TM-2008-215023; AIAA-2007-6197, January, 2008
"Design, Fabrication, and Performance of Foil Gas Thrust Bearings for Microturbomachinery Applications"
Dykas, Brian; Bruckner, Robert; DellaCorte, Christopher; Edmonds, Brian; Prahl, Joseph NASA/TM-2008-215062; GT2008-50377, January 2008
"Wear of Spur Gears Having a Dithering Motion and Lubricated With a Perfluorinated Polyether Grease"
Krantz, Timothy; Oswald, Fred; Handschuh, Robert NASA/TM-2007-215008; ARL-TR-4124, December, 2007
"Pitting and Bending Fatigue Evaluations of a New Case-Carburized Gear Steel"
Krantz, Timothy; Tufts, Brian NASA/TM-2007-215009; ARL-TR-4123, December, 2007
"Further Characterization of an Active Clearance Control Concept"
Taylor, Shawn, C.; Steinetz, Bruce, M.; Oswald, Jay, J. NASA/TM-2007-215039; AIAA-2007-5739, December, 2007
"Feasibility Study of Vapor-Mist Phase Reaction Lubrication Using a Thioether Liquid"
Morales, Wilfredo; Handschuh, Robert, F.; Krantz, Timothy, L. NASA/TM-2007-215035, December, 2007
"Evaluation of a Low-Noise Formate Spiral-Bevel Gear Set"
Lewicki, David, G.; Woods, Ron, L.; Litvin, Faydor, L.; Fuentes, Alfonso NASA/TM-2007-215032; ARL-TR-4125, December, 2007
"Determination of Turboprop Reduction Gearbox System Fatigue Life and Reliability"
Zaretsky, Erwin, V.; Lewicki, David, G.; Savage, Michael; Vlcek, Brian, L. NASA/TM-2007-215019, November, 2007
"Full-Scale System for Quantifying Leakage of Docking System Seals for Space Applications"
Dunlap, Patrick, H., Jr.; Daniels, Christopher, C.; Steinetz, Bruce, M.; Erker, Arthur, H.; Robbie, Malcolm, G.; Wasowski, Janice, L.; Drlik, Gary, J.; Tong, Michael, T.; Penney, Nicholas NASA/TM-2007-215024; AIAA-2007-5742, October, 2007
"An Evaluation of High Temperature Airframe Seals for Advanced Hypersonic Vehicles"
DeMange, Jeffrey, J.; Dunlap, Patrick, H.; Steinetz, Bruce, M.; Drlik, Gary, J. NASA/TM-2007-215043; AIAA-2007-5743, October, 2007
"2006 NASA Seal/Secondary Air System Workshop"
Editor(s): Steinetz, Bruce, M.; Hendricks, Robert, C.; Delgado, Irebert NASA/CP-2007-214995-VOL1, October, 2007
"Reexamination of Ball-Race Conformity Effects on Ball Bearing Life"
Zaretsky, Erwin, V.; Poplawski, Joseph, V.; Root, Lawrence, E. NASA/TM-2007-213635, September, 2007
"RDS-21 Face-Gear Surface Durability Tests"
Lewicki, David, G.; Heath, Gregory, F.; Filler, Robert, R.; Slaughter, Stephen, C.; Fetty, Jason NASA/TM-2007-214970; ARL-TR-4089, September, 2007
"Tribological Performance of PM300 Solid Lubricant Bushings for High Temperature Applications"
Striebing, Donald, R.; Stanford, Malcolm, K.; DellaCorte, Christopher; Yanke, Anne, M. NASA/TM-2007-214819; ARL-TR-4222, August 2007
"Vibration Transmission Through Bearings With Application to Gearboxes"
Fleming, David, P. NASA/TM-2007-214954; ISCORMA-4-510, July, 2007
"Stability Analysis of a High-Speed Seal Test Rotor With Marginal and Extended Squeeze-Film Dampers--Theoretical and Experimental Results"
Proctor, Margaret, P.; Gunter, Edgar, J. NASA/TM-2007-214849, July, 2007
"Investigation of Low-Cycle Bending Fatigue of AISI 9310 Steel Spur Gears"
Handschuh, Robert, F.; Krantz, Timothy, L.; Lerch, Bradley, A.; Burke, Christopher, S. NASA/TM-2007-214914; ARL-TR-4100, July, 2007
"Investigation of Current Methods to Identify Helicopter Gear Health"
Dempsey, Paula, J.; Lewicki, David, G.; Le, Dy, D. NASA/TM-2007-214664, July, 2007
"Operational Condition and Superfinishing Effect on High-Speed Helical Gearing System Performance"
Handschuh, R.; Kilmain, C.; Ehinger, R. NASA/TM-2007-214696; ARL-TR-4099, June, 2007
"Oil-Free Rotor Support Technologies for an Optimized Helicopter Propulsion System"
DellaCorte, Christopher; Bruckner, Robert, J. NASA/TM-2007-214845, June 2007
"Design, Fabrication and Performance of Open Source Generation I and II Compliant Hydrodynamic Gas Foil Bearings"
DellaCorte, Christopher; Radil, Kevin, C.; Bruckner, Robert, J.; Howard, S., Adam NASA/TM-2007-214691; ARL-TR-4102, April 2007
"Model Specification for Rework of Aircraft Engine, Power Transmission, and Accessory/Auxiliary Ball and Roller Bearings"
Zaretsky, Erwin, V.; Branzai, Emanuel, V. NASA/TP-2007-214463, March, 2007
"Design of Oil-Lubricated Machine for Life and Reliability"
Erwin V. Zaretsky NASA TM-2007-214362, January, 2007
"Gas Foil Bearing Technology Advancements for Closed Brayton Cycle Turbines"
Howard, Samuel, A.; Bruckner, Robert, J.; DellaCorte, Christopher; Radil, Kevin, C. NASA/TM-2007-214470, January 2007
"A New High-Speed Oil-Free Turbine Engine Rotordynamic Simulator Test Rig"
Howard, Samuel, A. NASA/TM-2007-214489, January 2007
"Operational Influence on Thermal Behavior of High-Speed Helical Gear Trains"
Robert F. Handschuh and Charles J. Kilmain NASA TM-2006-214344, ARL-TR-3969, November 2006
"High Temperature Evaluation of an Active Clearance Control System Concept"
Shawn C. Taylor, Bruce M. Steinetz, and Jay J. Oswald NASA TM-2006-214464, AIAA-2006-4750, November 2006
"Apollo Seals: A Basis for the Crew Exploration Vehicle Seals"
Joshua R. Finkbeiner, Patrick H. Dunlap, Jr., Bruce M. Steinetz, and Christopher C. Daniels NASA TM-2006-214372, AIAA-2006-5259, November 2006
"Performance Evaluations of Ceramic Wafer Seals"
Patrick H. Dunlap, Jr., Jeffrey J. DeMange, and Bruce M. Steinetz NASA TM-2006-214416, AIAA-2006-4934, November 2006
"Further Investigations of High Temperature Knitted Spring Tubes for Advanced Control Surface Seal Applications"
Shawn C. Taylor, Jeffrey J. DeMange, Patrick H. Dunlap, Jr., and Bruce M. Steinetz NASA TM-2006-214348, AIAA-2005-4154, November 2006
"Improved Seals for High Temperature Airframe Applications"
Jeffrey J. DeMange, Patrick H. Dunlap, and Bruce M. Steinetz NASA TM-2006-214465, AIAA-2006-4935, October 2006
"Transient Response of Rotor on Rolling-Element Bearings with Clearance"
David P. Fleming, Brian T. Murphy, Jerzy T. Sawicki, and J.V. Poplawski NASA TM-2006-214408, October 2006
"2005 NASA Seal/Secondary Air System Workshop"
Bruce M. Steinetz and Robert C. Hendricks, editors NASA CP-2006-214383-VOL1, October 2006
"Thermal Management Techniques for Oil-Free Turbomachinery Systems"
Radil, Kevin; DellaCorte, Chris; Zeszotek, Michelle NASA/TM-2006-214358;ARL-TR-3799, October 2006
"A Preliminary Foil Gas Bearing Performance Map"
DellaCorte, Christopher; Radil, Kevin, C.; Bruckner, Robert, J.; Howard, S., Adam NASA/TM-2006-214343; ARL-TR-3902, October 2006
"Continued Investigation of Leakage and Power Loss Test Results for Competing Turbine Engine Seals"
Irebert R. Delgado and Margaret P. Proctor NASA TM-2006-214420, ARL-MR-0643, AIAA-2006-4754, September 2006
"Sealing in Turbomachinery"
Raymond E. Chupp, Robert C. Hendricks, Scott B. Lattime, and Bruce M. Steinetz NASA TM-2006-214341, August 2006
"A Resonant Synchronous Vibration Based Approach for Rotor Imbalance Detection"
Huageng Luo, Hector Rodriguez, Darren Hallman, and David G. Lewicki NASA TM-2006-214335, AIAA-2006-1966, ARL-TR-3908, August 2006
"Seals/Secondary Fluid Flows Workshop 1997"
Robert C. Hendricks, editor NASA CP-2006-214329-VOL1, August 2006
"Seals/Secondary Fluid Flows Workshop 1997 -- HSR Engine Special Session"
Robert C. Hendricks, editor NASA CP-2006-214329-VOL2, May 2006
"Tapered Roller Bearing Damage Detection Using Decision Fusion Analysis"
Paula J. Dempsey, Gary Kreider, and Thomas Fichter NASA TM-2006-214380, July 2006
"Gas Seal Pad With Herringbone-Grooved Rotor-Stiffness and Load Capacity"
David P. Flemming NASA TM-2006-214333, May 2006
"Phosphate Reactions as Mechanisms of High-Temperature Lubrication"
Anitha Nagarajan, Carolina Garrido, Jorge E. Gatica, and Wilfredo Morales NASA TM-2006-214060, May 2006
"Investigation of Tapered Roller Bearing Damage Detection Using Oil Debris Analysis"
Paula J. Dempsey, Gary Kreider, and Thomas Fichter NASA TM-2006-214082, February 2006
"Rotorcraft Health Management Issues and Challenges"
James J. Zakrajsek, Paula J. Dempsey, Edward M. Huff, Michael Augustin, Robab Safa-Bakhsh, Alan Duke, Piet Ephraim, Paul Grabil, and Harry J. Decker NASA TM-2006-214022, February 2006
"Gas Foil Bearings for Space Propulsion Nuclear Electric Power Generation"
Howard, Samuel, A.; DellaCorte, Christopher NASA/TM-2006-214115, February 2006
"Effect of Prolonged Exposure to High Temperature Air on PhysicalCharacteristics of a Powder Metallurgy Composite Solid Lubricant"
Stanford, Malcolm, K.; Ward, La'Nita, D.; Dellacorte, Christopher NASA/TM-2006-213603, February 2006
"Current Research Activities in Drive System Technology in Support of the NASA Rotorcraft Program"
Robert F. Handschuh and James J. Zakrajsek NASA TM-2006-214052, ARL-TR-37, January 2006
"Shuttle Rudder/Speed Brake Power Drive Unit (PDU) Gear Scuffing Tests With Flight Gears"
Margaret P. Proctor, Fred B. Oswald, and Timothy L. Krantz NASA TM-2005-214092, December 2005
"Design of Gear Drives With High Gear Ratio"
Faydor L. Litvin, Alfonso Fuentes, Daniele Vecchiato, and Ignacio Gonzalez-Perez NASA CR-2005-214002, ARL-CR-0569, December 2005
"Evaluation of an Active Clearance Control System Concept"
Bruce M. Steinetz, Scott B. Lattime, Shawn Taylor, Jonathan A. DeCastro, Jay Oswald, and Kevin J. Melcher NASA TM-2005-213856, AIAA-2005-3989, November 2005
"Design Study of Wafer Seals for Future Hypersonic Vehicles"
Patrick H. Dunlap, Jr., Joshua R. Finkbeiner, Bruce M. Steinetz, and Jeffrey J. DeMange NASA TM-2005-213858, AIAA-2005-4153, October 2005
"2004 NASA Seal/Secondary Air System Workshop"
Bruce M. Steinetz and Robert C. Hendricks, editors NASA CP-2005-213655-VOL1, October 2005
"Grainex Mar-M 247 Turbine Disk Life Study for NASA's High Temperature High Speed Turbine Seal Test Facility"
Irebert R. Delgado NASA TM-2005-213873, ARL-TR-3528, October 2005
"An Experimental Investigation of the Influence of the Lubricant Viscosity and Additives on Gear Wear"
Timothy L. Krantz and Ahmet Kahraman NASA TM-2005-213956, ARL-TR-3126, October 2005
"The Influence of Roughness on Gear Surface Fatigue"
Timothy L. Krantz NASA TM-2005-213958, ARL-TR-3134, October 2005
"A Study of Spur Gears Lubricated With Grease-Observations From Seven Experiments"
Timothy L. Krantz and Robert F. Handschuh NASA TM-2005-213957, ARL-TR-3159, September 2005
"Investigations of Shuttle Main Landing Gear Door Environmental Seals"
Joshua Finkbeiner, Pat Dunlap, Bruce Steinetz, Jeff DeMange, and Daniel Newswander NASA TM-2005-213860, AIAA-2005-4155, September 2005
"Nonlinear Whirl Response of a High-Speed Seal Test Rotor With Marginal and Extended Squeeze-Film Dampers"
Margaret P. Proctor and Edgar J. Gunter NASA TM-2005-213808, August 2005
"Hybrid Bearing Prognostic Test Rig"
Paula J. Dempsey, Joseph M. Certo, Robert F. Handschuh, and Florin Dimofte NASA TM-2005-213597, ARL-TR-3454, August 2005
"Experimental Study of the Influence of Speed and Load on Thermal Behavior of High-Speed Helical Gear Trains"
R. Handschuh and C. Kilmain NASA TM-2005-213632, ARL-TR-3488, July 2005
"Unbalance Response Prediction for Accelerating Rotors With Load-Dependent Nonlinear Bearing Stiffness"
David P. Fleming, Jerzy T. Sawicki, and J.V. Poplawski NASA TM-2005-213801, June 2005
"Water Atomization of Barium Fluoride-Calcium Fluoride for Enhanced Flow Characteristics of PS304 Feedstock Powder Blend"
Stanford, Malcolm, K.; DellaCorte, Christopher NASA/TM-2003-212-REV1, June 2005
"Analytic Modeling of the Hydrodynamic, Thermal, and Structural Behavior of Foil Thrust Bearings"
Bruckner, Robert, J.; DellaCorte, Christopher; Prahl, Joseph, M. NASA/TM-2005-213811, June 2005
"Effect of Rolling Bearing Refurbishment and Restoration on Bearing Life and Reliability"
Erwin V. Zaretsky and Emanuel V. Branzai NASA TM-2005-212966, May 2005
"Effect of Silicon Nitride Balls and Rollers on Rolling Bearing Life"
Erwin V. Zaretsky, Brian L. Vlcek, and Robert C. Hendricks NASA TM-2005-213061, TRIB2004-64246, April 2005
"Turbomachine Interface Sealing"
Robert C. Hendricks, Raymond E. Chupp, Scott B. Lattime, and Bruce M. Steinetz NASA TM-2005-213633, April 2005
"Exploration Rover Concepts and Development Challenges"
James J. Zakrajsek, David B. McKissock, Jeffrey M. Woytach, June F. Zakrajsek, Fred B. Oswald, Kelly J. McEntire, Gerald M. Hill, Phillip Abel, Dennis J. Eichenberg, and Thomas W. Goodnight NASA TM-2005-213555, AIAA-2005-2525, March 2005
"An Oil-Free Thrust Foil Bearing Facility Design, Calibration, and Operation"
Bauman, Steve NASA/TM-2005-213568, March 2005
"Face Gear Drive With Helical Involute Pinion: Geometry, Generation by a Shaper and a Worm, Avoidance of Singularities and Stress Analysis"
Faydor L. Litvin, Alfonso Fuentes, Ignacio Gonzalez-Perez, Alessandro Piscopo, and Paolo Ruzziconi NASA CR-2005-213443, ARL-CR-557, February 2005
"Transmission Bearing Damage Detection Using Decision Fusion Analysis"
Paula J. Dempsey, David G. Lewicki, and Harry J. Decker NASA TM-2004-213382, ARL-TR-3328, November 2004
"Noncontacting Finger Seal"
Proctor, M. P. and Steinetz, B. M. US Patent No. 6,811,154 Issued: Nov. 2, 2004
"On the Development of a Unique Arc Jet Test Apparatus for Control Surface Seal Evaluations"
Joshua R. Finkbeiner, Patrick H. Dunlap, Jr., Bruce M. Steinetz, Malcolm Robbie, Gus Baker, and Arthur Erker NASA TM-2004-213204, AIAA-2004-3891, October 2004
"2003 NASA Seal/Secondary Air System Workshop"
Bruce M. Steinetz and Robert C. Hendricks, editors NASA CP-2004-212963-VOL1, September 2004
"Evaluation of High Temperature Knitted Spring Tubes for Structural Seal Applications"
Shawn C. Taylor, Jeffrey J. DeMange, Patrick H. Dunlap, Jr., and Bruce M. Steinetz NASA TM-2004-213183, AIAA-2004-3890, September 2004
"Modeling and Evaluation of Canted Coil Springs as High Temperature Seal Preloading Devices"
Jay J. Oswald, Robert L. Mullen, Patrick H. Dunlap, Jr., and Bruce M. Steinetz NASA TM-2004-213189, AIAA-2004-3889, September 2004
"Further Investigations of Hypersonic Engine Seals"
Patrick H. Dunlap, Jr., Bruce M. Steinetz, and Jeffrey J. DeMange NASA TM-2004-213188, AIAA-2004-3887, August 2004
"Turbomachine Sealing and Secondary Flows
Part 1-Review of Sealing Performance, Customer, Engine Designer, and Research Issues"
R.C. Hendricks, B.M. Steinetz, and M.J. Braun NASA TM-2004-211991-PART1, July 2004
"Turbomachine Sealing and Secondary Flows
Part 2-Review of Rotordynamics Issues in Inherently Unsteady Flow Systems With Small Clearances"
R.C. Hendricks, L.T. Tam, and A. Muszynska NASA TM-2004-211991-PART2, July 2004
"Turbomachine Sealing and Secondary Flows
Part 3-Review of Power-Stream Support, Unsteady Flow Systems, Seal and Disk Cavity Flows, Engine Externals, and Life and Reliability Issues"
R.C. Hendricks, B.M. Steinetz, E.V. Zaretsky, M.M. Athavale, and A.J. Przekwas NASA TM-2004-211991-PART3, July 2004
"New Design and Improvement of Planetary Gear Trains"
Faydor L. Litvin, Alfonso Fuentes, Daniele Vecchiato, and Ignacio Gonzalez-Perez NASA CR-2004-213101, ARL-CR-0540, July 2004
"Current Status of Hybrid Bearing Damage Detection"
Paula J. Dempsey, Joseph M. Certo, and Wilfredo Morales NASA TM-2004-212882, ARL-TR-3119, June 2004
"Thermal Effects on a Low Cr Modification of PS304 Solid Lubricant Coating"
Stanford, Malcolm, K.; Yanke, Anne, M.; DellaCorte, Christopher NASA/TM-2004-213111, June 2004
"Investigation of Gear and Bearing Fatigue Damage Using Debris Particle Distributions"
Paula J. Dempsey, David G. Lewicki, and Harry J. Decker NASA TM-2004-212883, ARL-TR-3133, May 2004
"Planetary Transmission Diagnostics"
Paul D. Samuel, Joseph K. Conroy, and Darryll J. Pines NASA CR-2004-213068, May 2004
"An Experimental Investigation Into the Temperature Profile of a Compliant Foil Air Bearing" NASA TM-213100, May 2004
"Leakage and Power Loss Test Results for Competing Turbine Engine Seals"
Margaret P. Proctor and Irebert R. Delgado NASA TM-2004-213049, GT2004-53935, April 2004
"Future Issues and Approaches to Health Monitoring and Failure Prevention for Oil-Free Gas Turbines"
DellaCorte, Christopher NASA/TM-2004-213058, April 2004
"Strain-Life Assessment of Grainex Mar-M 247 for NASA's Turbine Seal Test Facility"
Irebert R. Delgado, Gary R. Halford, Bruce M. Steinetz, and Clare M. Rimnac NASA TM-2004-212985, ARL-TR-3178, GT2004-53939, April 2004
"Friction and Wear Characteristics of Cu-4Al Foil Bearing Coating at 25 and 650 °C"
DellaCorte, Christopher; Stanford, Malcolm, K. NASA/TM-2004-212972, March 2004
"High Temperature Seal for Large Structural Movements"
Bruce M. Steinetz and Patrick J. Dunlap, Jr. US Patent No. 6,702,300 B1 Issued: March 9, 2004
"Nonlinear Oscillations and Flow of Gas Within Closed and Open Conical Resonators"
Christopher Daniels, Joshua Finkbeiner, Bruce Steinetz, Xiaofan Li, and Ganesh Raman NASA/TM-2004-212902, AIAA-2004-0677, February 2004
"Approximate Solution for Choked Flow in Gas Seal Pads"
David P. Fleming NASA TM-2004-212956, ISROMAC10-2004-110, February 2004
"Advanced Control Surface Seal Development for Future Space Vehicles"
J.J. DeMange, P.H. Dunlap, Jr., and B.M. Steinetz NASA TM-2004-212898, January 2004
"Conversion Coatings for Aluminum Alloys by Chemical Vapor Deposition Mechanisms"
John T. Reye, Lisa S. McFadden, Jorge E. Gatica, and Wilfredo Morales NASA TM-2004-212905
"High Temperature Propulsion System Structural Seals for Future Space Launch Vehicles"
Patrick H. Dunlap, Jr., Bruce M. Steinetz, and Jeffrey J. DeMange NASA TM-2004-212907, January 2004
"Mechanical Components Branch Test Facilities and Capabilities"
Fred B. Oswald NASA TM-2004-212722, January 2004
"Intermetallic Nickel-Titanium Alloys for Oil-Lubricated Bearing Applications"
DellaCorte, C.; Pepper, S.,V.; Noebe, R.; Hull, D.,R.; Glennon, G. NASA/TM-2009-215646, March, 2009
"Variable/Multispeed Rotorcraft Drive System Concepts"
Stevens, Mark, A.; Handschuh, Robert, F.; Lewicki, David, G. NASA/TM-2009-215456; ARL-TR-4758, March 2009
"Concepts for Variable/Multi-Speed Rotorcraft Drive System"
Stevens, Mark, A.; Handschuh, Robert, F.; Lewicki, David, G. NASA/TM-2008-215276; ARL-TR-4564; AHS 080273, September, 2008
"Probabilistic Analysis of Space Shuttle Body Flap Actuator Ball Bearings"
Oswald, Fred, B.; Jett, Timothy, R.; Predmore, Roamer, E.; Zaretsky, Erwin, V. NASA/TM-2008-215057, January 2008
"Relation Between Hertz-Life Exponent, Ball-Race Conformity, and Ball Bearing Life"
Zaretsky, Erwin, V.; Poplawski, Joseph, V.; Root, Lawrence, E. NASA/TM-2008-214265, January 2008
"Wear of Spur Gears Having a Dithering Motion and Lubricated With a Perfluorinated Polyether Grease"
Krantz, Timothy; Oswald, Fred; Handschuh, Robert NASA/TM-2007-215008; ARL-TR-4124, December, 2007
"Pitting and Bending Fatigue Evaluations of a New Case-Carburized Gear Steel"
Krantz, Timothy; Tufts, Brian NASA/TM-2007-215009; ARL-TR-4123, December, 2007
"Feasibility Study of Vapor-Mist Phase Reaction Lubrication Using a Thioether Liquid"
Morales, Wilfredo; Handschuh, Robert, F.; Krantz, Timothy, L. NASA/TM-2007-215035, December, 2007
"Evaluation of a Low-Noise Formate Spiral-Bevel Gear Set"
Lewicki, David, G.; Woods, Ron, L.; Litvin, Faydor, L.; Fuentes, Alfonso NASA/TM-2007-215032; ARL-TR-4125, December, 2007
"Determination of Turboprop Reduction Gearbox System Fatigue Life and Reliability"
Zaretsky, Erwin, V.; Lewicki, David, G.; Savage, Michael; Vlcek, Brian, L. NASA/TM-2007-215019, November, 2007
"Reexamination of Ball-Race Conformity Effects on Ball Bearing Life"
Zaretsky, Erwin, V.; Poplawski, Joseph, V.; Root, Lawrence, E. NASA/TM-2007-213635, September 2007
"RDS-21 Face-Gear Surface Durability Tests"
Lewicki, David, G.; Heath, Gregory, F.; Filler, Robert, R.; Slaughter, Stephen, C.; Fetty, Jason NASA/TM-2007-214970; ARL-TR-4089, September 2007
"Vibration Transmission Through Bearings With Application to Gearboxes"
Fleming, David, P. NASA/TM-2007-214954; ISCORMA-4-510, July 2007
"Investigation of Low-Cycle Bending Fatigue of AISI 9310 Steel Spur Gears"
Handschuh, Robert, F.; Krantz, Timothy, L.; Lerch, Bradley, A.; Burke, Christopher, S. NASA/TM-2007-214914; ARL-TR-4100, July 2007
"Investigation of Current Methods to Identify Helicopter Gear Health"
Dempsey, Paula, J.; Lewicki, David, G.; Le, Dy, D. NASA/TM-2007-214664, July 2007
"Operational Condition and Superfinishing Effect on High-Speed Helical Gearing System Performance"
Handschuh, R.; Kilmain, C.; Ehinger, R. NASA/TM-2007-214696; ARL-TR-4099, June, 2007
"Model Specification for Rework of Aircraft Engine, Power Transmission, and Accessory/Auxiliary Ball and Roller Bearings"
Zaretsky, Erwin, V.; Branzai, Emanuel, V. NASA/TP-2007-214463, March 2007
"Design of Oil-Lubricated Machine for Life and Reliability"
Erwin V. Zaretsky NASA TM-2007-214362, January 2007
"Operational Influence on Thermal Behavior of High-Speed Helical Gear Trains"
Robert F. Handschuh and Charles J. Kilmain
NASA TM-2006-214344, ARL-TR-3969, November 2006
"Transient Response of Rotor on Rolling-Element Bearings with Clearance"
David P. Fleming, Brian T. Murphy, Jerzy T. Sawicki, and J.V. Poplawski NASA TM-2006-214408, October 2006
"A Resonant Synchronous Vibration Based Approach for Rotor Imbalance Detection"
Huageng Luo, Hector Rodriguez, Darren Hallman, and David G. Lewicki NASA TM-2006-214335, AIAA-2006-1966, ARL-TR-3908, August 2006
"Tapered Roller Bearing Damage Detection Using Decision Fusion Analysis"
Paula J. Dempsey, Gary Kreider, and Thomas Fichter NASA TM-2006-214380, July 2006
"Phosphate Reactions as Mechanisms of High-Temperature Lubrication"
Anitha Nagarajan, Carolina Garrido, Jorge E. Gatica, and Wilfredo Morales NASA TM-2006-214060, May 2006
"Investigation of Tapered Roller Bearing Damage Detection Using Oil Debris Analysis"
Paula J. Dempsey, Gary Kreider, and Thomas Fichter NASA TM-2006-214082, February 2006
"Rotorcraft Health Management Issues and Challenges"
James J. Zakrajsek, Paula J. Dempsey, Edward M. Huff, Michael Augustin, Robab Safa-Bakhsh, Alan Duke, Piet Ephraim, Paul Grabil, and Harry J. Decker NASA TM-2006-214022, February 2006
"Current Research Activities in Drive System Technology in Support of the NASA Rotorcraft Program"
Robert F. Handschuh and James J. Zakrajsek NASA TM-2006-214052, ARL-TR-37, January 2006
"Design of Gear Drives With High Gear Ratio"
Faydor L. Litvin, Alfonso Fuentes, Daniele Vecchiato, and Ignacio Gonzalez-Perez NASA CR-2005-214002, ARL-CR-0569, December 2005
"An Experimental Investigation of the Influence of the Lubricant Viscosity and Additives on Gear Wear"
Timothy L. Krantz and Ahmet Kahraman NASA TM-2005-213956, ARL-TR-3126, October 2005
"The Influence of Roughness on Gear Surface Fatigue"
Timothy L. Krantz NASA TM-2005-213958, ARL-TR-3134, October 2005
"A Study of Spur Gears Lubricated With Grease-Observations From Seven Experiments"
Timothy L. Krantz and Robert F. Handschuh NASA TM-2005-213957, ARL-TR-3159, September 2005
"Hybrid Bearing Prognostic Test Rig"
Paula J. Dempsey, Joseph M. Certo, Robert F. Handschuh, and Florin Dimofte NASA TM-2005-213597, ARL-TR-3454, August 2005
"Experimental Study of the Influence of Speed and Load on Thermal Behavior of High-Speed Helical Gear Trains"
R. Handschuh and C. Kilmain NASA TM-2005-213632, ARL-TR-3488, July 2005
"Unbalance Response Prediction for Accelerating Rotors With Load-Dependent Nonlinear Bearing Stiffness"
David P. Fleming, Jerzy T. Sawicki, and J.V. Poplawski NASA TM-2005-213801, June 2005
"Effect of Rolling Bearing Refurbishment and Restoration on Bearing Life and Reliability"
Erwin V. Zaretsky and Emanuel V. Branzai NASA TM-2005-212966, May 2005
"Effect of Silicon Nitride Balls and Rollers on Rolling Bearing Life"
Erwin V. Zaretsky, Brian L. Vlcek, and Robert C. Hendricks NASA TM-2005-213061, TRIB2004-64246, April 2005
"Face Gear Drive With Helical Involute Pinion: Geometry, Generation by a Shaper and a Worm, Avoidance of Singularities and Stress Analysis"
Faydor L. Litvin, Alfonso Fuentes, Ignacio Gonzalez-Perez, Alessandro Piscopo, and Paolo Ruzziconi NASA CR-2005-213443, ARL-CR-557, February 2005
"Transmission Bearing Damage Detection Using Decision Fusion Analysis"
Paula J. Dempsey, David G. Lewicki, and Harry J. Decker NASA TM-2004-213382, ARL-TR-3328, November 2004
"New Design and Improvement of Planetary Gear Trains"
Faydor L. Litvin, Alfonso Fuentes, Daniele Vecchiato, and Ignacio Gonzalez-Perez NASA CR-2004-213101, ARL-CR-0540, July 2004
"Current Status of Hybrid Bearing Damage Detection"
Paula J. Dempsey, Joseph M. Certo, and Wilfredo Morales NASA TM-2004-212882, ARL-TR-3119, June 2004
"Investigation of Gear and Bearing Fatigue Damage Using Debris Particle Distributions"
Paula J. Dempsey, David G. Lewicki, and Harry J. Decker NASA TM-2004-212883, ARL-TR-3133, May 2004
"Planetary Transmission Diagnostics"
Paul D. Samuel, Joseph K. Conroy, and Darryll J. Pines NASA CR-2004-213068, May 2004
"Conversion Coatings for Aluminum Alloys by Chemical Vapor Deposition Mechanisms"
John T. Reye, Lisa S. McFadden, Jorge E. Gatica, and Wilfredo Morales NASA TM-2004-212905, 2004
"Mechanical Components Branch Test Facilities and Capabilities"
Fred B. Oswald NASA TM-2004-212722, January 2004
"Monte Carlo Simulation of Sudden Death Bearing Testing"
Brian L. Vlcek, Robert C. Hendricks, and Erwin V. Zaretsky NASA TM-2003-212506, STLE-2003-121, December 2003
"Preliminary Comparison of Experimental and Analytical Efficiency Results of High-Speed Helical Gear Trains"
Robert F. Handschuh and Charles J. Kilmain NASA TM-2003-212371, ARL-TR-3019, DETC2003/PTG-48116, September 2003
"Effect of Individual Component Life Distribution on Engine Life Prediction"
Erwin V. Zaretsky, Robert C. Hendricks, and Sherry M. Soditus NASA TM-2003-212532, August 2003
"Determination of Rolling-Element Fatigue Life From Computer Generated Bearing Tests"
Brian L. Vlcek, Robert C. Hendricks, and Erwin V. Zaretsky NASA TM-2003-212186, August 2003
"Threshold Assessment of Gear Diagnostic Tools on Flight and Test Rig Data"
Paula J. Dempsey, Marianne Mosher, and Edward M. Huff NASA TM-2003-212220-REV1, August 2003
"Increased Surface Fatigue Lives of Spur Gears by Application of a Coating"
Timothy L. Krantz, Clark V. Cooper, Dennis P. Townsend, and Bruce D. Hansen NASA TM-2003-212463, ARL-TR-2971, DETC2003-48114, August 2003
"Unbalance Response Prediction for Rotors on Ball Bearings Using Speed and Load Dependent Nonlinear Bearing Stiffness"
David P. Fleming and J.V. Poplawski NASA TM-2003-212527, August 2003
"Evaluation of Low-Noise, Improved-Bearing-Contact Spiral Bevel Gears"
David G. Lewicki and Ron L. Wood NASA TM-2003-212353, ARL-TR-2970, June 2003
"Spiral Bevel Pinion Crack Detection in a Helicopter Gearbox"
Harry J. Decker and David G. Lewicki NASA TM-2003-212327, ARL-TR-2958, June 2003
"Modified Involute Helical Gears: Computerized Design, Simulation of Meshing, and Stress Analysis"
Faydor L. Litvin, Alfonso Fuentes, Ignacio Gonzalez-Perez, Luca Carnevali, and Kazumasa Kawasaki NASA CR-2003-212229, ARL-CR-514, June 2003
"Computerized Design, Generation, Simulation of Meshing and Contact, and Stress Analysis of Formate Cut Spiral Bevel Gear Drives"
Faydor L. Litvin, Alfonso Fuentes, Baxter R. Mullins, and Ron Woods NASA CR-2003-212336, ARL-CR-525, June 2003
"Efficiency of High-Speed Helical Gear Trains"
Robert F. Handschuh and Charles J. Kilmain
NASA TM-2003-212222, ARL-TR-2968, April 2003
"Effects on Diagnostic Parameters After Removing Additional Synchronous Gear Meshes"
Harry J. Decker NASA TM-2003-212312, ARL-TR-2933, April 2003
"Integrating Oil Debris and Vibration Measurements for Intelligent Machine Health Monitoring"
Paula J. Dempsey NASA/TM 2003-211307, Mar 2003
"Computation of Pressurized Gas Bearings Using CE/SE Method"
Sorin Cioc, Florin Dimofte, Theo G. Keith, Jr., and David P. Fleming NASA TM-2003-212110, February 2003
"New Geometry of Worm Face Gear Drives With Conical and Cylindrical Worms: Generation, Simulation of Meshing, and Stress Analysis"
Faydor L. Litvin, Alessandro Nava, Qi Fan, and Alfonso Fuentes NASA CR-2002-211895, ARL-CR-0511, November 2002
"Transient Vibration Prediction for Rotors on Ball Bearings Using Load-Dependent Non-Linear Bearing Stiffness"
David P. Fleming and J.V. Poplawski NASA TM-2002-211829, August 2002
"Spiral Bevel Gear Damage Detection Using Decision Fusion Analysis"
Paula J. Dempsey, Robert F. Handschuh, and Abdollah A. Afjeh NASA TM-2002-211814, ARL-TR-2744, August 2002
"Predictive Failure of Cylindrical Coatings Using Weibull Analysis"
Brian L. Vlcek, Robert C. Hendricks, and Erwin V. Zaretsky NASA TM-2002-211381, July 2002
"Weibull-Based Design Methodology for Rotating Aircraft Engine Structures"
Erwin V. Zaretsky, Robert C. Hendricks, and Sherry Soditus NASA TM-2002-211348, June 2002
"Integrating Oil Debris and Vibration Gear Damage Detection Technologies Using Fuzzy Logic"
Paula J. Dempsey and Abdollah A. Afjeh NASA TM-2002-211126, July 2002
"Development of Face Gear Technology for Industrial and Aerospace Power Transmission"
Gregory F. Heath, Robert R. Filler, and Jie Tan NASA CR-2002-211320, ARL-CR-0485, May 2002
"Crack Detection for Aerospace Quality Spur Gears"
Harry J. Decker NASA TM-2002-211492, ARL-TR-2682, April 2002
"Gear Crack Detection Using Tooth Analysis"
Harry J. Decker NASA TM-2002-211491, ARL-TR-2681, April 2002
"Preliminary Investigation of the Thermal Behavior of High-Speed Helical Gear Trains"
Robert F. Handschuh and Charles J. Kilmain NASA TM-2002-211336, ARL-TR-2661, March 2002
"Face Gear Drive With Spur Involute Pinion: Geometry, Generation by a Worm, Stress Analysis"
Faydor L. Litvin, Alfonso Fuentes, Claudio Zanzi, and Matteo Pontiggia NASA CR-2002-211362, ARL-CR-491, February 2002
"Wave Journal Bearings Under Dynamic Loads"
Florin Dimofte and Robert C. Hendricks NASA TM-2002-211079, February 2002
"Design and Stress Analysis of Low-Noise Adjusted Bearing Contact Spiral Bevel Gears"
Faydor L. Litvin, Alfonso Fuentes, Baxter R. Mullins, and Ron Woods NASA CR-2002-211344, ARL-CR-486, January 2002
"Procedure for Tooth Contact Analysis of a Face Gear Meshing With a Spur Gear Using Finite Element Analysis"
George Bibel NASA CR-2002-211277, January 2002
"Effect of Bearing Dynamic Stiffness on Gear Vibration"
David P. Fleming NASA TM-2002-211356, January 2002
"Software for Statistical Analysis of Weibull Distributions With Application Timothy L. Krantz
to Gear Fatigue Data: User Manual With Verification" NASA TM-2002-211109, ARL-TR-1338, January 2002
"Experimental Comparison of Face-Milled and Face-Hobbed Spiral Bevel Gears"
Robert F. Handschuh, Michael Nanlawala, John M. Hawkins, and Danny Mahan NASA TM-2001-210940, ARL-TR-1104, October 2001
"Gear Damage Detection Using Oil Debris Analysis"
Paula J. Dempsey NASA TM-2001-210936, ARL-TR-1104, October 2001
"Rotordynamic Influence on Rolling Element Bearing Selection and Operation"
Gilbert K. Queitzsch, Jr., and David P. Fleming NASA TM-2001-211131, August 2001
"Comparison Between Oil-Mist and Oil-Jet Lubrication of High-Speed, Small-Bore, Angular-Contact Ball Bearings"
Stanley I. Pinel, Hans R. Signer, and Erwin V. Zaretsky NASA TM-2001-210462, August 2001
"Effect of Speed (Centrifugal Load) on Gear Crack Propagation Direction"
David G. Lewicki NASA TM-2001-211117, ARL-TR-1314, August 2001
"Gear Crack Propagation Path Studies-Guidelines for Ultra-Safe Design"
David G. Lewicki NASA TM-2001-211073, ARL-TR-2468, July 2001
"Modeling, Modal Properties, and Mesh Stiffness Variation Instabilities of Planetary Gears"
Robert G. Parker and Jian Lin NASA CR-2001-210939, ARL-CR-462, May 2001
"Computerized Design, Generation, and Simulation of Meshing and Contact of Face-Milled Formate Cut Spiral Bevel Gears"
Faydor L. Litvin, Qi Fan, and Alfonso Fuentes NASA CR-2001-210894, ARL-CR-467, May 2001
"Computerized Generation and Simulation of Meshing of Modified Spur and Helical Gears Manufactured by Shaving"
Faydor L. Litvin, Qi Fan, Daniele Vecchiato, and Alberto Demenego NASA CR-2001-210893, ARL-CR-468, May 2001
"Testing of Face-Milled Spiral Bevel Gears at High-Speed and Load"
Robert F. Handschuh NASA TM-2001-210743, ARL-TR-2381, March 2001
"Minimizing Load Effects on NA4 Gear Vibration Diagnostic Parameter"
Paula J. Dempsey and James J. Zakrajsek NASA TM-2001-210671, February 2001
"Design, Generation and Tooth Contact Analysis (TCA) of Asymmetric Face Gear Drive With Modified Geometry"
Faydor L. Litvin, Alfonso Fuentes, J. Matthew Hawkins, and Robert F. Handschuh NASA TM-2001-210614, ARL-TR-2373, January 2001
"Computerized Generation and Simulation of Meshing and Contact of New Type of Novikov-Wildhaber Helical Gears"
Faydor L. Litvin, Pin-Hao Feng, and Sergei A. Lagutin NASA CR-2000-209415, ARL-CR-428, October 2000
"Influence of Tooth Spacing Error on Gears With and Without Profile Modifications"
Giri Padmasolala, Hsiang H. Lin, and Fred B. Oswald NASA TM-2000-210061, PTG-14436, October 2000
"A Comparison of Vibration and Oil Debris Gear Damage Detection Methods Applied to Pitting Damage"
Paula J. Dempsey NASA TM-2000-210371, September 2000
"Design and Operating Characteristics of High-Speed, Small-Bore Cylindrical-Roller Bearings"
Stanley I. Pinel, Hans R. Signer, and Erwin V. Zaretsky NASA TM-2000-209778, August 2000
"Effect of Roller Profile on Cylindrical Roller Bearing Life Prediction"
Joseph V. Poplawski, Erwin V. Zaretsky, and Steven M. Peters NASA TM-2000-210368, August 2000
"Consideration of Moving Tooth Load in Gear Crack Propagation Predictions"
David G. Lewicki, Lisa E. Spievak, Paul A. Wawrzynek, Anthony R. Ingraffea, and Robert F. Handschuh TM 210227, ARL-TR-2246, DETC2000/PTG-14386, July 2000
"Simulating Fatigue Crack Growth in Spiral Bevel Gears"
Lisa E. Spievak, Paul A. Wawrzynek, and Anthony R. Ingraffea NASA CR-2000-210062, ARL-CR-451, May 2000
"Lubrication System Failure Baseline Testing on an Aerospace Quality Gear Mesh"
Robert F. Handschuh and Wilfredo Morales NASA TM-2000-209954, ARL-TR-2214, May 2000
"Surface Fatigue Lives of Case-Carburized Gears With an Improved Surface Finish"
T.L. Krantz, M.P. Alanou, H.P. Evans, and R.W. Snidle NASA TM-2000-210044, ARL-TR-2170, DETC2000/PTG-14373, April 2000
"Handbook on Face Gear Drives With a Spur Involute Pinion"
F.L. Litvin, A. Egelja, J. Tan, D.Y-D. Chen, and G. Heath NASA CR-2000-209909, ARL-CR-447, March 2000
"Wave Fluid Film Bearing Tests for an Aviation Gearbox"
Florin Dimofte, Margaret P. Proctor, David P. Fleming, and Theo G. Keith, Jr. NASA TM-2000-209766, January 2000
"Enhanced Computer Aided Simulation of Meshing and Contact with Application for Spiral Bevel Gear Drives"
F.L. Litvin, M. De Donno, A. Peng, A. Vorontsov, and R.F. Handschuh NASA TM-1999-209438, ARL-TR-2111, October 1999 "Comparison of Interpolation Methods as Applied to Time Synchronous Averaging"
Harry J. Decker and James J. Zakrajsek NASA TM-1999-209086, ARL-TR-1960, June 1999
"Evaluation of Carburized and Ground Face Gears"
David G. Lewicki, Robert F. Handschuh, Gregory F. Heath, and Vijay Sheth NASA TM-1999-209188, ARL-TR-1998, May 1999
"A Preliminary Study on the Vapor/Mist Phase Lubrication of a Spur Gearbox"
Wilfredo Morales and Robert F. Handschuh NASA TM-1999-208833, February 1999
"Comparison of Experimental and Analytical Tooth Bending Stress of Aerospace Spiral Bevel Gears"
Robert F. Handschuh and George D. Bibel NASA TM-1999-208903, ARL-TR-1891, February 1999
"Three-Dimensional Gear Crack Propagation Studies"
David G. Lewicki, Ashok D. Sane, Raymond J. Drago, and Paul A. Wawrzynek 'NASA TM-1998-208827, ARL-TR-1833, December 1998
"Using Dynamic Analysis for Compact Gear Design"
Ping-Hsun Lin, Hsiang Hsi Lin, Fred B. Oswald, and Dennis P. Townsend NASA TM-1998-207419, ARL-TR-1818, ASME DETC98/PTG-5785, September 1998
Method for Fabricating a Split Path Transmission System Providing Equal Torque Splitting Between the Split Load Paths of Each Gear Train Thereof at a Predefined Operating Point Jules G. Kish, Robert J. Durwin, and Timothy L. Krantz Patent No. 5,813,292 Issued: September 29, 1998
"Evaluation of Navy 9 cst Oil in Bell Helicopter M412 HP Gearboxes"
Zachary S. Henry and William R. Stapper NASA CR-1998-208517, ARL-CR-430, August 1998 (Abstract only)
"Design and Operating Characteristics of High-Speed, Small Bore, Angular-Contact Ball Bearings"
Stanley I. Pinel, Hans R. Signer, and Erwin V. Zaretsky NASA TM-1998-206981, August 1998
"Design, Fabrication, and Testing of a High-Speed, Over-Running Clutch for Rotorcraft"
Frank Fitz and Craig Gadd NASA CR-1998-208513, ARL-CR-429, August 1998 (Abstract only)
"Operational Evaluation of a Health and Usage Monitoring System (HUMS)"
J. Cronkhite, B. Dickson, W. Martin, and G. Collingwood NASA CR-1998-207409, ARL-CR-420, DOT/FAA/AR-97/64, April 1998 (Abstract only)
"A Parametric Study of Spur Gear Dynamics"
Hsiang Hsi Lin and Chuen-Huei Liou NASA CR-1998-206598, ARL-CR-419, January 1998 (Abstract only)
"Development of Gear Technology and Theory of Gearing"
Faydor L. Litvin NASA RP-1406, December 1997
"New Methods for Improved Double Circular-Arc Helical Gears"
Faydor L. Litvin and Jian Lu NASA CR-4771, ARL-CR-339, July 1997
"A. Palmgren Revisited - A Basis for Bearing Life Prediction"
Erwin V. Zaretsky NASA TM-107440, April 1997
"Gear and Transmission Research at NASA Lewis Research Center"
Dennis P. Townsend NASA TM-107428, ARL-TR-1339, April 1997 (Abstract only)
"Diagnostic Analyzer for Gearboxes (DAG): User's Guide"
Vinay B. Jammu and Kourosh Danai NASA CR-4762, ARL-CR-333, January 1997 (Abstract only)
"Meshing of a Spiral Bevel Gearset With 3D Finite Element Analysis"
George D. Bibel and Robert Handschuh NASA TM-107336, ARL-TR-1224, October 1996 (Abstract only)
"Measurement of Gear Tooth Dynamic Friction"
Brian Rebbechi, Fred B. Oswald, and Dennis P. Townsend NASA TM-107279, ARL-TR-1165, September 1996
"A Computer Program for the Computation of Running Gear Temperatures Using Green's Function"
S. Koshigoe, J.W. Murdock, L.S. Akin, and D.P. Townsend NASA TM-107241, ARL-TR-1117, September 1996
"Evaluation of a Vibration Diagnostic System for the Detection of Spiral Bevel Gear Pitting Failures"
Dennis P. Townsend, James J. Zakrajsek, and Robert F. Handschuh NASA TM-107228, ARL-TR-1106, September 1996 (Abstract only)
"Experimental Evaluation of Face Gears for Aerospace Drive System Applications"
Robert F. Handschuh, David G. Lewicki, Gregory F. Heath, and Robert B. Bossler, Jr. NASA TM-107227, ARL-TR-1109, September 1996
"Acoustic Radiation Efficiency Models of a Simple Gearbox"
Mark F. Jacobson, Rajendra Singh, and Fred B. Oswald NASA TM-107226, ARL-TR-1111, September 1996
"Dynamic Forces in Spur Gears-Measurement, Prediction, and Code Validation"
Fred B. Oswald, Dennis P. Townsend, Brian Rebbechi, and Hsiang Hsi Lin NASA TM-107223, ARL-TR-1088, September 1996 (Abstract only)
"Balancing Dynamic Strength of Spur Gears Operated at Extended Center Distance"
Hsiang Hsi Lin, Chuen-Huei Liou, Fred B. Oswald, and Dennis P. Townsend NASA TM-107222, ARL-TR-1087, September 1996
"A Method to Analyze and Optimize the Load Sharing of Split Path Transmissions"
Timothy L. Krantz NASA TM-107201, ARL-TR-1066, September 1996
"Dynamic Analysis of Spur Gear Transmissions (DANST) PC Version 3.00 User Manual"
Fred B. Oswald, Hsiang Hsi Lin, and Irebert R. Delgado NASA TM-107291, ARL-TR-1189, August 1996
"Effect of Rim Thickness on Gear Crack Propagation Path"
David G. Lewicki and Roberto Ballarini NASA TM-107229, ARL-TR-1110, August 1996
"Effects of Planetary Gear Ratio on Mean Service Life"
M. Savage, K.L Rubadeux, and H.H. Coe NASA TM-107275, ARL-TR-1150, July 1996 (Abstract only)
"Experimental Study of Split Path Transmission Load Sharing"
Timothy L. Krantz and Irebert R. Delgado NASA TM-107202, ARL-TR-1067, June 1996
"Model-Based Sensor Location Selection for Helicopter Gearbox Monitoring"
Vinay B. Jammu, Keming Wang, Kourosh Danai, and David G. Lewicki NASA TM-107219, ARL-TR-1099, May 1996 (Abstract only)
"Crack Propagation Studies to Determine Benign or Catastrophic Failure Modes for Aerospace Thin-Rim Gears"
David G. Lewicki NASA TM-107170, ARL-TR-971, May 1996 (Abstract only)
"Feasibility Study of a Rotorcraft Health and Usage Monitoring System (HUMS): Usage and Structural Life Monitoring Evaluation"
B. Dickson, J. Cronkhite, S. Bielefeld, L. Killian, and R. Hayden NASA CR-198447, ARL-CR-290, DOT/FAA/AR-95/9, February 1996 (Abstract only)
"Feasibility Study of a Rotorcraft Health and Usage Monitoring System (HUMS): Results of Operator's Evaluation"
Raylund Romero, Harold Summers, and James Cronkhite NASA CR-198446, ARL-CR-289, DOT/FAA/AR-95/50, February 1996 (Abstract only)
"Detecting Gear Tooth Fatigue Cracks in Advance of Complete Fracture"
James J. Zakrajsek and David G. Lewicki NASA TM-107145, ARL-TR-970, January 1996
"Gear Crack Propagation Investigations"
David G. Lewicki and Roberto Ballarini NASA TM-107147, ARL-TR-957, January 1996 (Abstract only)
"Minimization of the Vibration Energy of Thin-Plate Structures and the Application to the Reduction of Gearbox Vibration"
Katsumi Inoue and Timothy L. Krantz NASA TM-106878, ARL-TR-722, December 1995
"Experimental and Analytical Assessment of the Thermal Behavior of Spiral Bevel Gears"
Robert F. Handschuh and Thomas P. Kicher NASA TM-107009, ARL-TR-852, August 1995 (Abstract only)
"The Surface Fatigue Life of Contour Induction Hardened AISI 1552 Gears"
Dennis P. Townsend, Alan Turza, and Mike Chaplin NASA TM-107017, ARL-TR-808, July 1995
"Bending Strength Model for Internal Spur Gear Teeth"
M. Savage, K.L. Rubadeux and H.H. Coe NASA TM-107012, ARL-TR-838, July 1995 (Abstract only)
"Influence of Tooth Profile Modification on Spur Gear Dynamic Tooth Strain"
Fred B. Oswald and Dennis P. Townsend NASA TM-106952, ARL-TR-778, AIAA-95-3050, June 1995 (Abstract only)
"Diagnosis of Helicopter Gearboxes Using Structure-Based Networks"
Vinay B. Jammu, Kourosh Danai and David G. Lewicki NASA TM-106932, ARL-TR-761, June 1995 (Abstract only)
"Bell Helicopter Advanced Rotorcraft Transmission (ART) Program"
Zachary S. Henry NASA CR-195479, ARL-CR-00, June 1995 (Abstract only)
"Vibration Analysis of a Split Path Gearbox"
Timothy L. Krantz and Majid Rashidi NASA TM-106875, ARL-TR-723, AIAA-95-3048, May 1995
"Using Hob Offset to Balance Dynamic Strength in Spur Gears"
Chuen-Huei Liou, Hsiang Hsi Lin, Fred B. Oswald, and Dennis P. Townsend NASA TM-106934, ARL-TR-764, AIAA-95-3046, May 1995 (Abstract only)
"Transmission Diagnostic Research at NASA Lewis Research Center"
J.J. Zakrajsek, D.P. Townsend, D.G. Lewicki, H.J. Decker, and R.F. Handschuh NASA TM-106901, ARL-TR-748, April 1995
"Comparison of Life Theories for Rolling-Element Bearings"
Erwin V. Zaretsky, Joseph V. Poplawski, and Steven M. Peters NASA TM-106585, April 1995 (Abstract only)
"Effect of Hoop Stress on Ball Bearing Life Prediction"
Erwin V. Zaretsky, Richard August, and Harold H. Coe NASA TM-106874, April 1995 (Abstract only)
"Computerized Design and Generation of Low-Noise Gears With Localized Bearing Contact"
Faydor L. Litvin, Ningxin Chen, Jui-Sheng Chen, Jian Lu, and Robert F. Handschuh NASA TM-106880, ARL-TR-760, April 1995 (Abstract only)
"Detecting Gear Tooth Fracture in a High Contact Ratio Face Gear Mesh"
James J. Zakrajsek, Robert F. Handschuh, David G. Lewicki and Harry J. Decker NASA TM-106822, ARL-TR-600, January 1995 (Abstract only)
"Wave Journal Bearing Part I: Analysis"
Florin Dimofte NASA CR-195431, January 1995 (Abstract only)
"Wave Journal Bearing Part II: Experimental Pressure Measurements and Fractional Frequency Whirl Threshold for Wave and Plain Journal Bearings"
Florin Dimofte NASA TM-106848, January 1995 (Abstract only)
"Generation and Computerized Simulation of Meshing and Contact of Modified Involute Helical Gears"
Faydor L. Litvin, Ningxin Chen, and Jian Lu NASA CR-4644, ARL-CR-221, January 1995 (Abstract only
"Resilient Flexible Pressure-Activated Seal"
Bruce M. Steinetz and Patrick J. Dunlap, Jr. US Patent No. 7,497,443 Issued: March 3, 2009
"Seal Technology Development for Advanced Component for Airbreathing Engines"
Snyder, Philip, H. NASA/CR-2008-215479, December, 2008
"Performance of Subscale Docking Seals Under Simulated Temperature Conditions"
Smith, Ian, M.; Daniels, Christopher, C.; Dunlap, Patrick, H.; Steinetz, Bruce, M. NASA/TM-2008-215428, October, 2008
"Adhesion of Silicone Elastomer Seals for NASA’s Crew Exploration Vehicle"
de Groh, Henry, C., III; Miller, Sharon, K., R.; Smith, Ian, M.; Daniels, Christoper, C.; Steinetz, Bruce, M. NASA/TM-2008-215433, October, 2008
"Characteristics of Elastomer Seals Exposed to Space Environments"
Daniels, Christopher, C.; de Groh, Henry, C., III; Dunlap, Patrick, H., Jr.; Finkbeiner, Joshua, R.; Steinetz, Bruce, M.; Bastrzyk, Marta, B.; Oswald, Jay, J.; Banks, Bruce, A.; Dever, Joyce, A.; Miller, Sharon, K.; Waters, Deborah, L. NASA/TM-2008-215005; AIAA-2007-5741, January 2008
"Experimental Investigation of Elastomer Docking Seal Compression Set, Adhesion, and Leakage"
Daniels, Christopher, C.; Oswald, Jay, J.; Bastrzyk, Marta, B.; Smith, Ian; Dunlap, Patrick, H., Jr.; Steinetz, Bruce, M. NASA/TM-2008-215023; AIAA-2007-6197, January 2008
"Full-Scale System for Quantifying Leakage of Docking System Seals for Space Applications"
Dunlap, Patrick, H., Jr.; Daniels, Christopher, C.; Steinetz, Bruce, M.; Erker, Arthur, H.; Robbie, Malcolm, G.; Wasowski, Janice, L.; Drlik, Gary, J.; Tong, Michael, T.; Penney, Nicholas NASA/TM-2007-215024; AIAA-2007-5742, October 2007 "An Evaluation of High Temperature Airframe Seals for Advanced Hypersonic Vehicles"
DeMange, Jeffrey, J.; Dunlap, Patrick, H.; Steinetz, Bruce, M.; Drlik, Gary, J. NASA/TM-2007-215043; AIAA-2007-5743, October 2007
"Apollo Seals: A Basis for the Crew Exploration Vehicle Seals"
Joshua R. Finkbeiner, Patrick H. Dunlap, Jr., Bruce M. Steinetz, and Christopher C. Daniels NASA TM-2006-214372, AIAA-2006-5259, November 2006
"Performance Evaluations of Ceramic Wafer Seals"
Patrick H. Dunlap, Jr., Jeffrey J. DeMange, and Bruce M. Steinetz NASA TM-2006-214416, AIAA-2006-4934, November 2006
"Further Investigations of High Temperature Knitted Spring Tubes for Advanced Control Surface Seal Applications"
Shawn C. Taylor, Jeffrey J. DeMange, Patrick H. Dunlap, Jr., and Bruce M. Steinetz NASA TM-2006-214348, AIAA-2005-4154, November 2006
"Design Study of Wafer Seals for Future Hypersonic Vehicles"
Patrick H. Dunlap, Jr., Joshua R. Finkbeiner, Bruce M. Steinetz, and Jeffrey J. DeMange NASA TM-2005-213858, AIAA-2005-4153, October 2005
"Investigations of Shuttle Main Landing Gear Door Environmental Seals"
Joshua Finkbeiner, Pat Dunlap, Bruce Steinetz, Jeff DeMange, and Daniel Newswander NASA TM-2005-213860, AIAA-2005-4155, September 2005
"On the Development of a Unique Arc Jet Test Apparatus for Control Surface Seal Evaluations"
Joshua R. Finkbeiner, Patrick H. Dunlap, Jr., Bruce M. Steinetz, Malcolm Robbie, Gus Baker, and Arthur Erker NASA TM-2004-213204, AIAA-2004-3891, October 2004
"Evaluation of High Temperature Knitted Spring Tubes for Structural Seal Applications"
Shawn C. Taylor, Jeffrey J. DeMange, Patrick H. Dunlap, Jr., and Bruce M. Steinetz NASA TM-2004-213183, AIAA-2004-3890, September 2004
"Modeling and Evaluation of Canted Coil Springs as High Temperature Seal Preloading Devices"
Jay J. Oswald, Robert L. Mullen, Patrick H. Dunlap, Jr., and Bruce M. Steinetz NASA TM-2004-213189, AIAA-2004-3889, September 2004
"High Temperature Seal for Large Structural Movements"
Bruce M. Steinetz and Patrick J. Dunlap, Jr. US Patent No. 6,702,300 B1 Issued: March 9, 2004
"Advanced Control Surface Seal Development for Future Space Vehicles"
J.J. DeMange, P.H. Dunlap, Jr., and B.M. Steinetz NASA TM-2004-212898, January 2004
"High Temperature Propulsion System Structural Seals for Future Space Launch Vehicles"
Patrick H. Dunlap, Jr., Bruce M. Steinetz, and Jeffrey J. DeMange NASA TM-2004-212907, January 2004
"Mechanical Components Branch Test Facilities and Capabilities"
Fred B. Oswald NASA TM-2004-212722, January 2004
"Advanced High Temperature Structural Seals"
Charles W. Newquist, Juris Verzemnieks, Peter C. Keller, Michael Rorabaugh, and Mark W. Shorey NASA CR-2002-211973, October 2002
"Rocket Motor Joint Construction Including Thermal Barrier"
Bruce M. Steinetz and Patrick J. Dunlap, Jr. US Patent No. 6,446,979 Issued: September 10, 2002
"Investigations of Control Surface Seals for Re-Entry Vehicles"
Patrick H. Dunlap, Jr., Bruce M. Steinetz, Donald M. Curry, Jeffrey J. DeMange, H. Kevin Rivers, and Su-Yuen Hsu NASA TM-2002-211708, AIAA-2002-3941, July 2002
"Further Investigations of Control Surface Seals for the X-38 Re-Entry Vehicle"
Patrick H. Dunlap, Jr., Bruce M. Steinetz, Donald M. Curry, Charles W. Newquist, and Juris Verzemnieks NASA TM-2001-210980, AIAA-2001-3628, July 2001
"Advanced High Temperature Structural Seals"
Charles W. Newquist, Juris Verzemnieks, Peter C. Keller, and Mark W. Shorey NASA CR-2000-210522, November 2000
"Rudder/Fin Seal Investigations for the X-38 Re-Entry Vehicle"
Patrick H. Dunlap, Jr., Bruce M. Steinetz, and Donald M. Curry NASA TM-2000-210338-REV1, AIAA-2000-3508, November 2000
"Resilient Braided Rope Seal"
Bruce M. Steinetz and Lawrence A. Kren US Patent No. 6,039,325 Issued: March 21, 2000
"Development of Thermal Barriers for Solid Rocket Motor Nozzle Joints"
Bruce M. Steinetz and Patrick H. Dunlap, Jr. NASA TM-1999-209278, AIAA-99-2823, June 1999
"Feasibility Assessment of Thermal Barrier Seals for Extreme Transient Temperatures"
Bruce M. Steinetz and Patrick H. Dunlap, Jr. NASA TM-1998-208484, AIAA-98-3288, July 1998
“Effects of Compression, Staging, and Braid Angle on Braided Rope Seal Performance”
Bruce M. Steinetz and Michael L. Adams NASA TM-107504, July 1997
"High Temperature Braided Rope Seals for Static Sealing Applications"
Bruce M. Steinetz, Michael L. Adams, Paul A. Bartolotta, Ram Darolia, and Andrew Olsen NASA TM-107233, AIAA-96-2910, July 1996
"High Temperature, Bellows Hybrid Seal"
Bruce M. Steinetz and Paul J. Sirocky US Patent No. 5,332,239 Issued: July 26, 1994
"High Temperature, Flexible Fiber-Preform Seal (Award winner)"
Bruce M. Steinetz and Paul J. Sirocky US Patent No. 5,082,293 Issued: January 21, 1992
"High Temperature, Flexible Pressure-Actuated Brush Seal"
Bruce M. Steinetz and Paul J. Sirocky US Patent No. 5,076,590 Issued: December 31, 1991
"High Temperature, Flexible Thermal Barrier Seal"
Paul J. Sirocky and Bruce M. Steinetz US Patent No. 5,014,917 Issued May 14, 1991
"High Temperature Performance Evaluation of Hypersonic Engine Ceramic Wafer Seal"
Bruce M. Steinetz
NASA TM-103737, April 1991
"High Temperature, Flexible Seal"
Bruce M. Steinetz and Paul J. Sirocky US Patent No. 4,917,302 Issued: April 17, 1990
Propulsion Seals Reports
"Preliminary Test Results of a Non-Contacting Finger Seal on a Herringbone-Grooved Rotor"
Proctor, Margaret, P.; Delgado, Irebert, R. NASA/TM-2008-215475, November, 2008
"A Review of Engine Seal Performance and Requirements for Current and Future Army Engine Platforms"
Delgado, Irebert, R.; Proctor, Margaret, P. NASA/TM-2008-215161; ARL-TR-4201; AIAA-2007-5734, March, 2008
"Further Characterization of an Active Clearance Control Concept"
Taylor, Shawn, C.; Steinetz, Bruce, M.; Oswald, Jay, J. NASA/TM-2007-215039; AIAA-2007-5739, January 2008
"2006 NASA Seal/Secondary Air System Workshop"
Editor(s): Steinetz, Bruce, M.; Hendricks, Robert, C.; Delgado, Irebert NASA/CP-2007-214995-VOL1, October 2007
"Stability Analysis of a High-Speed Seal Test Rotor With Marginal and Extended Squeeze-Film Dampers--Theoretical and Experimental Results"
Proctor, Margaret, P.; Gunter, Edgar, J. NASA/TM-2007-214849, July 2007
"High Temperature Evaluation of an Active Clearance Control System Concept"
Shawn C. Taylor, Bruce M. Steinetz, and Jay J. Oswald NASA TM-2006-214464, AIAA-2006-4750, November 2006
"Improved Seals for High Temperature Airframe Applications"
Jeffrey J. DeMange, Patrick H. Dunlap, and Bruce M. Steinetz NASA TM-2006-214465, AIAA-2006-4935, October 2006
"2005 NASA Seal/Secondary Air System Workshop"
Bruce M. Steinetz and Robert C. Hendricks, editors NASA CP-2006-214383-VOL1, October 2006
"Continued Investigation of Leakage and Power Loss Test Results for Competing Turbine Engine Seals"
Irebert R. Delgado and Margaret P. Proctor NASA TM-2006-214420, ARL-MR-0643, AIAA-2006-4754, September 2006
"Sealing in Turbomachinery"
Raymond E. Chupp, Robert C. Hendricks, Scott B. Lattime, and Bruce M. Steinetz NASA TM-2006-214341, August 2006
"Seals/Secondary Fluid Flows Workshop 1997"
Robert C. Hendricks, editor NASA CP-2006-214329-VOL1, August 2006
"Gas Seal Pad With Herringbone-Grooved Rotor-Stiffness and Load Capacity"
David P. Fleming NASA TM-2006-214333, May 2006
"Seals/Secondary Fluid Flows Workshop 1997 -- HSR Engine Special Session"
Robert C. Hendricks, editor NASA CP-2006-214329-VOL2, May 2006
"Seal Investigations of an Active Clearance Control System Concept"
Bruce M. Steinetz, Shawn Taylor, Jay Oswald, and Jonathan A. DeCastro NASA TM-2006-214114, February 2006
"Evaluation of an Active Clearance Control System Concept"
Bruce M. Steinetz, Scott B. Lattime, Shawn Taylor, Jonathan A. DeCastro, Jay Oswald, and Kevin J. Melcher NASA TM-2005-213856, AIAA-2005-3989, November 2005
"2004 NASA Seal/Secondary Air System Workshop"
Bruce M. Steinetz and Robert C. Hendricks, editors NASA CP-2005-213655-VOL1, October 2005
"Grainex Mar-M 247 Turbine Disk Life Study for NASA's High Temperature High Speed Turbine Seal Test Facility"
Irebert R. Delgado NASA TM-2005-213873, ARL-TR-3528, October 2005
"Nonlinear Whirl Response of a High-Speed Seal Test Rotor With Marginal and Extended Squeeze-Film Dampers"
Margaret P. Proctor and Edgar J. Gunter NASA TM-2005-213808, August 2005
"Turbomachine Interface Sealing"
Robert C. Hendricks, Raymond E. Chupp, Scott B. Lattime, and Bruce M. Steinetz NASA TM-2005-213633, April 2005
"Noncontacting Finger Seal"
Proctor, M. P. and Steinetz, B. M. US Patent No. 6,811,154 Issued: Nov. 2, 2004
"2003 NASA Seal/Secondary Air System Workshop"
Bruce M. Steinetz and Robert C. Hendricks, editors NASA CP-2004-212963-VOL1, September 2004
"Further Investigations of Hypersonic Engine Seals"
Patrick H. Dunlap, Jr., Bruce M. Steinetz, and Jeffrey J. DeMange NASA TM-2004-213188, AIAA-2004-3887, August 2004
"Turbomachine Sealing and Secondary Flows
Part 1-Review of Sealing Performance, Customer, Engine Designer, and Research Issues"
R.C. Hendricks, B.M. Steinetz, and M.J. Braun NASA TM-2004-211991-PART1, July 2004
"Turbomachine Sealing and Secondary Flows
Part 2-Review of Rotordynamics Issues in Inherently Unsteady Flow Systems With Small Clearances"
R.C. Hendricks, L.T. Tam, and A. Muszynska NASA TM-2004-211991-PART2, July 2004
"Turbomachine Sealing and Secondary Flows
Part 3-Review of Power-Stream Support, Unsteady Flow Systems, Seal and Disk Cavity Flows, Engine Externals, and Life and Reliability Issues"
R.C. Hendricks, B.M. Steinetz, E.V. Zaretsky, M.M. Athavale, and A.J. Przekwas NASA TM-2004-211991-PART3, July 2004
"Leakage and Power Loss Test Results for Competing Turbine Engine Seals"
Margaret P. Proctor and Irebert R. Delgado NASA TM-2004-213049, GT2004-53935, April 2004
"Strain-Life Assessment of Grainex Mar-M 247 for NASA's Turbine Seal Test Facility"
Irebert R. Delgado, Gary R. Halford, Bruce M. Steinetz, and Clare M. Rimnac NASA TM-2004-212985, ARL-TR-3178, GT2004-53939, April 2004
"Nonlinear Oscillations and Flow of Gas Within Closed and Open Conical Resonators"
Christopher Daniels, Joshua Finkbeiner, Bruce Steinetz, Xiaofan Li, and Ganesh Raman NASA/TM-2004-212902, AIAA-2004-0677, February 2004
"Mechanical Components Branch Test Facilities and Capabilities"
Fred B. Oswald NASA TM-2004-212722, January 2004
"2002 NASA Seal/Secondary Air System Workshop"
Bruce M. Steinetz and Robert C. Hendricks, editors NASA CP-2003-212458-VOL1, September 2003
"Test Rig for Evaluating Active Turbine Blade Tip Clearance Control Concepts"
Scott B. Lattime, Bruce M. Steinetz, and Malcolm G. Robbie NASA TM-2003-212533, AIAA-2003-4700, July 2003
"Toward an Improved Hypersonic Engine Seal"
Patrick H. Dunlap, Jr., Bruce M. Steinetz, Jeffrey J. DeMange, and Shawn C. Taylor NASA TM-2003-212531, AIAA-2003-4834, July 2003
"Nonlinear Resonant Oscillations of Gas in Optimized Acoustical Resonators and the Effect of Central Blockage"
Xiaofan Li, Joshua Finkbeiner, Ganesh Raman, Christopher Daniels, and Bruce M. Steinetz NASA TM-2003-212019, AIAA-2003-0368, February 2003
"2001 NASA Seal/Secondary Air System Workshop"
Bruce M. Steinetz and Robert C. Hendricks, editors NASA CP-2002-211911-VOL1, October 2002
"Turbine Engine Clearance Control Systems: Current Practices and Future Directions"
Scott B. Lattime and Bruce M. Steinetz NASA TM-2002-211794, AIAA-2002-3790, September 2002
"High-Speed, High-Temperature Finger Seal Test Results"
Margaret P. Proctor, Arun Kumar, and Irebert R. Delgado NASA TM-2002-211589, ARL-TR-2781, AIAA-2002-3793, July 2002
"2000 NASA Seal/Secondary Air System Workshop"
Bruce M. Steinetz and Robert C. Hendricks, editors NASA CP-2001-211208-VOL1, October 2001
"1999 NASA Seal/Secondary Air System Workshop"
Bruce M. Steinetz and Robert C. Hendricks, editors NASA CP-2000-210472-VOL1, October 2000 (Abstract only)
"Pressure Balanced, Low Hysteresis, Finger Seal Test Results"
Gul K. Arora, Margaret P. Proctor, Bruce M. Steinetz, and Irebert R. Delgado NASA TM-1999-209191, ARL-MR-457, AIAA-99-2686, June 1999
"Advanced Seal Technology Role in Meeting Next Generation Turbine Engine Goals"
Bruce M. Steinetz, Robert C. Hendricks, and John Munson NASA TM-1998-206961, AVT-PPS Paper No. 11, April 1998
"Preliminary Tuft Testing of Metallic Bristles Versus PS212, PS300, and HVOF300"
James Fellenstein, Christopher DellaCorte NASA TM-107522, June 1998
"Effects of Compression, Staging, and Braid Angle on Braided Rope Seal Performance"
Bruce M. Steinetz and Michael L. Adams NASA TM-107504, AIAA-97-2872, July 1997
"High Temperature Brush Seal Tuft Testing of Selected Nickel-Chrome and Cobalt-Chrome Superalloys"
James Fellenstein, Christopher DellaCorte, Kenneth Moore, Esther Boyes NASA TM-107497, AIAA-97-2643, July 1997
"High Temperature Brush Seal Tuft Testing of Metallic Bristles Versus Chrome Carbide"
James Fellenstein, Christopher DellaCorte, Kenneth Moore, Esther Boyes NASA TM-107238, AIAA-96-2908, June 1996
"Actively Controlled Shaft Seals for Aerospace Applications"
Richard F. Salant and Paul Wolff NASA CR-4678, June 1995 (Abstract only)
"A New Tribological Test for Candidate Brush Seal Materials Evaluation"
James Fellenstein, Christopher DellaCorte NASA TM-106753, June 1995
“Engine Seal Technology Requirements to Meet NASA’s Advanced Subsonic Technology Program Goals”
Bruce M. Steinetz, Robert C. Hendricks
NASA TM-106582, AIAA-94-2698, June 1994
“Relative Performance Comparison Between Baseline Labyrinth and Dual-Brush Compressor Discharge Seals in a T-700 Engine Test”
Robert C. Hendricks, Thomas A. Griffin, Teresa R. Kline, Kristine R. Csavina, Arvind Pancholi, and Devendra Sood
NASA TM-106360, ARL-MR-232, June 1994
Seal/Secondary Air System Workshop Proceedings
"2007 NASA Seal/Secondary Air System Workshop"
Steinetz, Bruce, M.; Hendricks, Robert, C.; Delgado, Irebert NASA/CP-2008-215263-VOL1, October, 2008
"2006 NASA Seal/Secondary Air System Workshop"
Editor(s): Steinetz, Bruce, M.; Hendricks, Robert, C.; Delgado, Irebert NASA/CP-2007-214995-VOL1, October 2007
"2005 NASA Seal/Secondary Air System Workshop"
Bruce M. Steinetz and Robert C. Hendricks, editors NASA CP-2006-214383-VOL1, October 2006
"2004 NASA Seal/Secondary Air System Workshop"
Bruce M. Steinetz and Robert C. Hendricks, editors NASA CP-2005-213655-VOL1, October 2005
"2003 NASA Seal/Secondary Air System Workshop"
Bruce M. Steinetz and Robert C. Hendricks, editors NASA CP-2004-212963-VOL1, September 2004
"2002 NASA Seal/Secondary Air System Workshop"
Bruce M. Steinetz and Robert C. Hendricks, editors NASA CP-2003-212458-VOL1, September 2003
"2001 NASA Seal/Secondary Air System Workshop"
Bruce M. Steinetz and Robert C. Hendricks, editors NASA CP-2002-211911-VOL1, October 2002
"2000 NASA Seal/Secondary Air System Workshop"
Bruce M. Steinetz and Robert C. Hendricks, editors NASA CP-2001-211208-VOL1, October 2001
"1999 NASA Seal/Secondary Air System Workshop"
Bruce M. Steinetz and Robert C. Hendricks, editors NASA CP-2000-210472-VOL1, October 2000 (Abstract only)
"1998 NASA Seal/Secondary Air System Workshop"
Bruce M. Steinetz and Robert C. Hendricks, editors NASA/CP-1999-208916-VOL1, October 2000
"Seals/Secondary Fluid Flows Workshop 1997"
Robert C. Hendricks, editor NASA CP-2006-214329-VOL1, August 2006
"Seals/Secondary Fluid Flows Workshop 1997 -- HSR Engine Special Session"
Robert C. Hendricks, editor NASA CP-2006-214329-VOL2, May 2006
"Design, Fabrication, and Performance of Foil Gas Thrust Bearings for Microturbomachinery Applications"
Dykas, Brian; Bruckner, Robert; DellaCorte, Christopher; Edmonds, Brian; Prahl, Joseph NASA/TM-2008-215062; GT2008-50377, January 2008
"Preliminary Analysis for an Optimized Oil-Free Rotorcraft Engine Concept"
Howard, Samuel, A.; Bruckner, Robert, J.; DellaCorte, Christopher; Radil, Kevin, C. NASA/TM-2008-215064; ARL-TR-4398, March 2008
“A Foil Thrust Bearing Test Rig for Evaluation of High Temperature Performance and Durability,” Dykas, Brian D.; Tellier, Daniel W. ARL-MR-0692, April, 2008
"Compliant Foil Journal Bearing Performance at Alternate Pressures and Temperatures"
Bruckner, Robert, J.; Puleo, Bernadette, J. NASA/TM-2008-215219, May 2008
"Gas Foil Bearing Misalignment and Unbalance Effects"
Howard, Samuel, A. NASA/TM-2008-215176, May 2008
"Misalignment in Gas Foil Journal Bearings: An Experimental Study"
Howard, Samuel, A. NASA/TM-2008-215223, May 2008
"Gas Foil Bearing Technology Advancements for Closed Brayton Cycle Turbines"
Howard, Samuel, A.; Bruckner, Robert, J.; DellaCorte, Christopher; Radil, Kevin, C. NASA/TM-2007-214470, January 2007
"A New High-Speed Oil-Free Turbine Engine Rotordynamic Simulator Test Rig"
Howard, Samuel, A. NASA/TM-2007-214489, January 2007
"Design, Fabrication and Performance of Open Source Generation I and II Compliant Hydrodynamic Gas Foil Bearings"
DellaCorte, Christopher; Radil, Kevin, C.; Bruckner, Robert, J.; Howard, S., Adam NASA/TM-2007-214691; ARL-TR-4102, April 2007
"Oil-Free Rotor Support Technologies for an Optimized Helicopter Propulsion System"
DellaCorte, Christopher; Bruckner, Robert, J. NASA/TM-2007-214845, June 2007
"Tribological Performance of PM300 Solid Lubricant Bushings for High Temperature Applications"
Striebing, Donald, R.; Stanford, Malcolm, K.; DellaCorte, Christopher; Yanke, Anne, M. NASA/TM-2007-214819; ARL-TR-4222, August 2007
"Gas Foil Bearings for Space Propulsion Nuclear Electric Power Generation"
Howard, Samuel, A.; DellaCorte, Christopher NASA/TM-2006-214115, February 2006
"Effect of Prolonged Exposure to High Temperature Air on PhysicalCharacteristics of a Powder Metallurgy Composite Solid Lubricant"
Stanford, Malcolm, K.; Ward, La'Nita, D.; Dellacorte, Christopher NASA/TM-2006-213603, February 2006
"Thermal Management Techniques for Oil-Free Turbomachinery Systems"
Radil, Kevin; DellaCorte, Chris; Zeszotek, Michelle NASA/TM-2006-214358;ARL-TR-3799, October 2006
"A Preliminary Foil Gas Bearing Performance Map"
DellaCorte, Christopher; Radil, Kevin, C.; Bruckner, Robert, J.; Howard, S., Adam NASA/TM-2006-214343; ARL-TR-3902, October 2006
"An Oil-Free Thrust Foil Bearing Facility Design, Calibration, and Operation"
Bauman, Steve NASA/TM-2005-213568, March 2005
"Water Atomization of Barium Fluoride-Calcium Fluoride for Enhanced Flow Characteristics of PS304 Feedstock Powder Blend"
Stanford, Malcolm, K.; DellaCorte, Christopher NASA/TM-2003-212-REV1, June 2005
"Analytic Modeling of the Hydrodynamic, Thermal, and Structural Behavior of Foil Thrust Bearings"
Bruckner, Robert, J.; DellaCorte, Christopher; Prahl, Joseph, M. NASA/TM-2005-213811, June 2005
"Friction and Wear Characteristics of Cu-4Al Foil Bearing Coating at 25 and 650 °C"
DellaCorte, Christopher; Stanford, Malcolm, K. NASA/TM-2004-212972, March 2004
"Future Issues and Approaches to Health Monitoring and Failure Prevention for Oil-Free Gas Turbines"
DellaCorte, Christopher NASA/TM-2004-213058, April 2004
"An Experimental Investigation Into the Temperature Profile of a Compliant Foil Air Bearing" NASA TM-213100, May 2004
"Thermal Effects on a Low Cr Modification of PS304 Solid Lubricant Coating"
Stanford, Malcolm, K.; Yanke, Anne, M.; DellaCorte, Christopher NASA/TM-2004-213111, June 2004
"Particle Morphology Effects on Flow Characteristics of PS304 Plasma Spray Coating Feedstock Powder Blend" NASA/TM-2002-211206, January 2002
Particle Size Effects on Flow Properties of PS304 Plasma Spray Feedstock Powder Blend" NASA/TM-2002-211550, May 2002
"Effects of Humidity on the Flow Characteristics of PS304 Plasma Spray Feedstock Powder Blend" NASA/TM-2002-211549, May 2002
"The Role of Radial Clearance on the Performance of Foil Air Bearings" NASA/TM-2002-211705, July 2002
"The Effects of Substrate Material and Thermal Processing Atmosphere on the Strength of PS304: A High Temperature Solid Lubricant Coating" NASA TM-2002-211483, September 2002
"A Systems Approach to the Solid Lubrication of Foil Bearings for Oil-Free Turbomachinery" NASA TM-2002-211482, October 2002
"Thermal Processing Effects on the Adhesive Strength of PS304 High Temperature Solid Lubricant Coatings" NASA/TM-2001-210944, May 2001
"The Effect of Journal Roughness and Foil Coatings on the Performance of Heavily Loaded Foil Air Bearings" NASA TM-2001-210941 ARL-TR-2467, June 2001
"Performance and Durability of High Temperature Foil Air Bearings for Oil-Free Turbomachinery"
C. DellaCorte, V. Lukaszewicz, M.J. Valco, K.C. Radil, and H. Heshmat NASA TM-2000-209187-REV1, ARL-TR-2202, March 2000
"Load Capacity Estimation of Foil Air Journal Bearings for Oil-Free Turbomachinery Applications" NASA/TM-2000-209782, October 2000
"Rotordynamics and Design Methods of an Oil-Free Turbocharger" NASA CR-1999-208689, January 1999
"Evaluation of Advanced Solid Lubricant Coatings for Foil Air Bearings Operating at 25 and 500°C" NASA TM-1998-206619, June 1998
"Preliminary Tuft Testing of Metallic Bristles Versus PS212, PS300, and HVOF300" NASA TM-107522, June 1998
"The Evaluation of a Modified Chrome Oxide Based High Temperature Solid Lubricant Coating for Foil Gas Bearings" NASA/TM-1998-208660, October 1998
"A New Foil Air Bearing Test Rig for Use to 700 °C and 70,000 rpm" NASA TM-107405, January 1997
"The Effect of Counterface on the Tribological Performance of a High Temperature Solid Lubricant Composite from 25 to 650 °C" NASA TM-107183, April 1996
"Tribological evaluation of PS300: A new chrome oxide based solid lubricant coating sliding against Al2O3 From 25 to 650 °C" NASA-TM-107163, June 1996
"Friction and Wear Characteristics of Candidate Foil Bearing Materials From 25 °C to 800 °C" NASA TM-107082 DOE/NASA/50306-11, July 1996
"The Effect of Compositional Tailoring on the Thermal Expansion and Tribological Properties of PS300: A Solid Lubricant Composite Coating" NASA-TM-107332, October 1996
"Preliminary Evaluation of PS300: a New Self-Lubricating High Temperature Composite Coating for Use to 800 °C" NASA TM-107056, November 1995
Technology Opportunity
TOP3-00100, Advanced Bearings, Seals, and Solid Lubricants Enable Oil-Free Turbomachinery
R&T-1999System Being Developed to Measure the Rotordynamic Characteristics of Air Foil Bearings
The Role of Tribology in the Development of an Oil-Free Turbocharger, Physics and Process Modeling and other Propulsion, R&T Vol. 2, Apr 1997
Rotordynamic Design Analysis of an Oil-Free Turbocharger, Physics and Process Modeling and other Propulsion, R&T Vol. 2, Apr 1997
Other Publications
"Effect of Particle Morphology on Flow Characteristics of a Composite Plasma Spray Powder,"
M.K. Stanford, C. DellaCorte and D. Eylon
Journal of Thermal Spray Technology Vol. 13, No. 4, pp. 586-92, December 2004
"Simulation and Modeling of the Hydrodynamic, Thermal, and Structural Behavior of Foil Thrust Bearings,"
R.J. Bruckner Ph.D. Dissertation , Case Western Reserve University, August 2004
"Oil-free Rotor Support Technologies for Long Life, Closed Cycle Brayton Turbines,"
J.M. Lucero and C. DellaCorte
AIAA-2004-5720, Presented at the 40th Joint Propulsion Conference, Fort Lauderdale, FL, July 11-14, 2004
"A Propulsion System Analysis of Oil Free Turbomachinery for Aviation Turbofan Engines,"
R.J. Bruckner AIAA-2004-4189 , Presented at the 40th Joint Propulsion Conference, Fort Lauderdale, FL, July 11-14, 2004
"High Velocity Oxyfuel Deposition for Low Surface Roughness PS304 Self-Lubricating Composite Coatings,"
J.H. Kim, T.A. Blanchet and S.J. Calabrese Tribology Transactions , Vol. 47, No. 1, pp. 157-69, 2004
"Application of a High Temperature Self-lubricating Composite Coating on Steam Turbine Components,"
W. Wang Surface & Coatings Technology , Vol. 177-78, pp. 12-17, Jan 2004
"Investigation of Thermal and Rotational Contributions to the Catastrophic Failure Mechanism of a Thin-Walled Journal Operating with Foil Air Bearings,"
B. Dykas
M.S. thesis, Case Western Reserve University, May 2003
"A Fully Coupled Finite Element Formulation for Elastically Supported Foil Journal Bearings,"
M. Carpino and G. Talmage Tribology Transactions , Vol. 46, No. 4, pp. 560-565, Oct 2003
"Oil-Free Turbomachinery Technology for Regional Jet, Rotorcraft and Supersonic Business Jet Propulsion Engines,"
M.J. Valco and C. DellaCorte
Presented at the 16th International Symposium on Air Breathing Engines held in Cleveland, OH, August 31 - September 5, 2003 (View PDF)
"Emerging Oil-Free Turbomachinery Technology for Military Propulsion and Power Applications"
M.J. Valco and C. DellaCorte
in Transformational Science & Technology for the Army ... a race for speed and precision: Proceedings of the 23rd Army Science Conference held in Orlando, FL, December 2-5, 2002
"Thrust-Washer Evaluation of Self-Lubricating PS304 Composite Coatings in High Temperature Sliding Contact,"
T.A. Blanchet et al. Tribology Transactions , Vol. 45, No. 4, pp. 491-98, July 2002
"Dynamic Stiffness and Damping Characteristics of a High-Temperature Air Foil Journal Bearing,"
S.A. Howard et al. Tribology Transactions , Vol. 44, No. 4, pp. 657-63, Oct 2001
"Steady-State Stiffness of Foil Air Journal Bearings at Elevated Temperatures,"
S.A. Howard et al., Tribology Transactions , Vol. 44, p. 489-493, 2001
"Lubricated Bearing Lifetimes of a Multiply Alkylated Cyclopentane and a Linear Perfluoropolyether Fluid in Oscillatory Motion at Elevated Temperatures in Ultrahigh Vacuum"
Braza, Joseph; Jansen, Mark, J.; Jones, William, R., Jr. NASA/CR-2009-215637, May, 2009
"Performance and Analysis of Perfluorinated Grease Used on Space Shuttle Actuators"
Morales, Wilfredo; Street, Kenneth, W., Jr.; Zaretsky, Erwin, V. NASA/TM-2009-215605, April, 2009
"Liquid Space Lubricants Examined by Vibrational Micro-Spectroscopy"
Street, Kenneth, W., Jr. NASA/TM-2008-215184, July, 2008
"Probabilistic Analysis of Space Shuttle Body Flap Actuator Ball Bearings"
Oswald, Fred, B.; Jett, Timothy, R.; Predmore, Roamer, E.; Zaretsky, Erwin, V. NASA/TM-2008-215057, January 2008
"Permanent Magnetic Bearing for Spacecraft Applications"
Morales, Wilfredo; Fusaro, Robert; Kascak, Albert NASA/TM-2003-211996-REV1, January 2008
"Characterization of Lubricants on Ball Bearings by FT-IR Using an Integrating Sphere"
Street, K., W.; Pepper, S., V.; Wright, A., A.; Grady, NASA/TM-2007-214472, January, 2008
"Application of Carbon Based Nano-materials to Aeronautics and Space Lubrication"
Street, Kenneth, W.; Miyoshi, Kazuhisa; Vander Wal, Randy, L. NASA/TM-2007-214473, January, 2007
"Wear Behavior of Low-Cost, Lightweight TiC/Ti-6Al-4V Composite Under Fretting: Effectiveness of Solid-Film Lubricant Counterparts"
Miyoshi, Kazuhisa; Street, Kenneth, W., Jr.; Sanders, Jeffrey, H.; Hager, Carl, H., Jr.; Zabinski, Jeffrey, S.; Vander Wal, Randall, L.; Andrews, Rodney; Lerch, Bradley, A. NASA/TM-2007-214468, February, 2007
"Tribological Performance of PM300 Solid Lubricant Bushings for High Temperature Applications"
Striebing, Donald, R.; Stanford, Malcolm, K.; DellaCorte, Christopher; Yanke, Anne, M. NASA/TM-2007-214819; ARL-TR-4222, August, 2007
"Effect of Prolonged Exposure to High Temperature Air on PhysicalCharacteristics of a Powder Metallurgy Composite Solid Lubricant"
Stanford, Malcolm, K.; Ward, La'Nita, D.; Dellacorte, Christopher NASA/TM-2006-213603, February, 2006 "Shuttle Rudder/Speed Brake Power Drive Unit (PDU) Gear Scuffing Tests With Flight Gears"
Margaret P. Proctor, Fred B. Oswald, and Timothy L. Krantz NASA TM-2005-214092, December 2005
"A Study of Spur Gears Lubricated With Grease-Observations From Seven Experiments"
Timothy L. Krantz and Robert F. Handschuh NASA TM-2005-213957, ARL-TR-3159, September 2005
"Exploration Rover Concepts and Development Challenges"
James J. Zakrajsek, David B. McKissock, Jeffrey M. Woytach, June F. Zakrajsek, Fred B. Oswald, Kelly J. McEntire, Gerald M. Hill, Phillip Abel, Dennis J. Eichenberg, and Thomas W. Goodnight NASA TM-2005-213555, AIAA-2005-2525, March 2005
"Conversion Coatings for Aluminum Alloys by Chemical Vapor Deposition Mechanisms"
John T. Reye, Lisa S. McFadden, Jorge E. Gatica, and Wilfredo Morales NASA TM-2004-212905
"Mechanical Components Branch Test Facilities and Capabilities"
Fred B. Oswald NASA TM-2004-212722, January 2004
"Carbon Nanostructure Examined by Lattice Fringe Analysis of High Resolution Transmission Electron Microscopy Images"
Vander Wal, Randy, L.; Tomasek, Aaron, J.; Street, Kenneth; Thompson, William, K.; Hull, David, R. NASA/TM-2003-212214, May, 2003
"Permanent Magnetic Bearing for Spacecraft Applications"
Wilfredo Morales, Robert Fusaro, and Albert Kascak NASA TM-2003-211996, March 2003
"Space Mechanisms Technology Workshop"
Fred B. Oswald, editor NASA CP-2002-211882, September 2002
"A Passive Magnetic Bearing Flywheel"
Mark Siebert, Ben Ebihara, Ralph Jansen, Robert L. Fusaro, Wilfredo Morales, Albert Kascak, and Andrew Kenny NASA TM-2002-211159, IECEC2001-AT-89, February 2002
"Space Mechanisms Technology Workshop"
Fred B. Oswald, editor NASA CP-2001-210971, June 2001
"Preventing Spacecraft Failures Due to Tribological Problems"
Robert L. Fusaro NASA TM-2001-210806, April 2001
"Space Mechanisms Technology Workshop Proceedings"
Robert L. Fusaro, editor NASA CP-1999-209200, October 1999
"Accelerated Testing of Space Mechanisms"
S. Frank Murray and Hooshang Heshmat NASA CR-198437, December 1995 (Abstract only)
"A New Antiwear Additive/Surface Pretreatment for PFPE Liquid Lubricants"
Wilfredo Morales, Robert L. Fusaro, Mark Siebert, Theo Keith, Ralph Jansen, and Pilar Herrera-Fierro NASA TM-107038, December 1995 (Abstract only)
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