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Aeronautics
Subsonic Systems
Oil-Free Turbomachinery Team Passed Milestone on Path to the First Oil-Free Turbine Aircraft Engine
Propulsion Systems Analysis
Advanced Engine Cycles Analyzed for Turbofans With Variable-Area Fan Nozzles Actuated by a Shape Memory Alloy
Preliminary Integrated Safety Analysis of Synthetic Vision Conducted
Computing and Interdisciplinary Systems
NASA Participated in the Japan 2001 Science, Creativity and the Young Mind Workshop
Research and Technology
Materials
New High-Performance SiC Fiber Developed for Ceramic Composites
Architectures for High-Performance Ceramic Composites Being Improved
Techniques Optimized for Reducing Instabilities in Advanced Nickel-Base Superalloys for Turbine Blades
Long-Term Creep of a Thin-Walled Inconel 718 Stirling Power-Convertor Heater Head Assessed
g-TiAl Shown To Have Sufficient Durability To Allow the Design of a Robust Low-Pressure Turbine Blade
Major Effects of Nonmetallic Inclusions on the Fatigue Life of Disk Superalloy Demonstrated
Dual Microstructure Heat Treatment of a Nickel-Base Disk Alloy Assesssed
Strength and Fracture Toughness of Solid Oxide Fuel Cell Electrolyte Material Improved
Ceramic Propellant Injectors Designed and Fabricated
Tensile Strength and Microstructure of A12O3-ZrO2 Hypoeutectic Fibers Studied
Lightweight, Actively Cooled Ceramic Matrix Composite Thrustcells Successfully Tested in Rocket Combustion Lab
Ceramic Composite Intermediate Temperature Stress-Rupture Properties Improved Significantly
Single-Crystal Elastic Constants of Yttria (Y2O3) Measured to High Temperatures
Environment-Conscious Ceramics (Ecoceramics) Technology Given 2001 R&D 100 Award
Polymer/Silicate Nanocomposites Developed for Improved Thermal Stability and Barrier Properties
High-Glass-Transition-Temperature Polymides Developed for Reuseable Launch Vehicle Applications
NASA Glenn/AADC Collaboration Optimized Erosion Coatings for Inlet Guide Vanes
Novel Molecular Architectures Developed for Improved Solid Polymer Electrolytes for Lithium Polymer Batteries
Ti-48A1-2Cr-2Nb Evaluated Under Fretting Conditions
Oxidation Behavior of GRCop-84 Copper Alloy Assessed
Knowledge of Pest Resistance of SiC/BN/SiC Composites Improved
Effects of Microalloying on the Microstructures and Mechanical Properties of Directionally Solidified Ni-33(at.%)Al-31Cr-3Mo Eutectic Alloys Investigated
Cyclic Oxidation Modeling Program Rewritten for MS Windows
Effect of Environment on the Stress-Rupture Behavior of a C/SiC Composite Studied
Thermal Cyclic Behavior of Thermal and Environmental Barrier Coatings Investigated Under High-Heat-Flux Conditions
Power and On-Board Propulsion Technology
Quantum Dots Investigated for Solar Cells
Silicon Carbide Solar Cells Investigated
Floating Potential Probe Deployed on the International Space Station
Carbon Nanotube Anodes Being Evaluated for Lithium Ion Batteries
Atmospheric-Pressure-Spray, Chemical-Vapor-Deposited Thin-Film Materials Being Developed for High Power-to-Weight-Ratio Space Photovoltaic Applications
Photovoltaic Engineering Testbed Designed for Calibrating Photovoltaic Devices in Space
Advanced Power Technology Developed for the Starshine 3 Satellite
High-Power Electromagnetic Thruster Being Developed
Magnetohydrodynamic MACH Code Used to Simulate Magnetoplasmadynamic Thrusters
Next-Generation Ion Propulsion Being Developed
Modular 5-kW Power-Processing Unit Being Developed for the Next-Generation Ion Engine
13-kV Ion-Extraction System Being Developed for Inert Gas Ion Engines
Deep Space 1 Ion Engine Completed a 3-Year Journey
Flywheel Charge/Discharge Control Developed
Intelligent dc-dc Convertor Technology Developed and Tested
Solid-Body Fuse Developed for High-Voltage Space Power Systems
Sensitive Technique Developed Using Atomic Force Microscopy to Measure the Low-Earth-Orbit Atomic Oxygen Erosion of Polymers
MISSE PEACE Polymers: an International Space Station Environment Exposure Experiment Being Conducted
Physical and Thermal Properties Evaluated of Teflon FEP Retrieved From the Hubble Space Telescope During Three Servicing Missions
Facility and Methods Developed for Simulated Space Vacuum Ultraviolet Exposure Testing of Polymer Films
High-Temperature Intercalated Graphite Fiber Conductors Studied
Solar Selective Coatings Developed for Space Power Applications
Cryogenic Electronics Being Developed for Space Operation
Integrated Stirling Convertor and Hall Thruster Test Conducted
Stirling Research Laboratory Providing Independent Performance Verification of Convertors for a Stirling Radioisotope Generator
Refractive Secondary Solar Concentrator Demonstrated High-Temperature Operation
Operation of a Thin-Film Inflatable Concentrator System Demonstrated in a Solar Thermal Vacuum Environment
Instrumentation and Controls
High-Temperature Gas Sensor Array (Electronic Nose) Demonstrated
Bulk Micromachined 6H-SiC High-g Piezoresistive Accelerometer Fabricated and Tested
Interferometer-Controlled Optical Tweezers Constructed for Nanotechnology and Biotechnology
Fiber-Optic Pressure Sensor With Dynamic Demodulation Developed
Tip-Clearance Vortex Characterized With Three-Dimensional Digital Particle Image Velocimetry
Active Control of Combustor Instability Shown to Help Lower Emissions
Life-Extending Control for Aircraft Engines Studied
Hybrid Neural-Network-Genetic Algorithm Technique for Aircraft Engine Performance Diagnostics Developed and Demonstrated
Communications Technology
Command and Control of Space Assets Through Internet-Based Technologies Demonstrated
Mobile Router Developed and Tested
TCP Pacing Developed
Digital Distortion Caused by Traveling-Wave-Tube Amplifiers Simulated
High-Power, High-Frequency Si-Based (SiGe) Transitors Developed
Low-Loss, High-Isolation Microwave Microelectromechanical Systems (MEMS) Switches Being Developed
Overall Traveling-Wave-Tube Efficiency Improved by Optimized Multistage Depressed Collector Design
Power-Efficient, High-Current-Density, Long-Life Thermionic Cathode Developed for Microwave Amplifier Applications
Microelectromechanical Systems (MEMS) Actuator-Based, Polarization Reconfigurable Patch Antenna Demonstrated
622-Mbps Orthogonal Frequency Division Multiplexing (OFDM) Digital Modem Implemented
Turbomachinery and Propulsion Systems
Vortex Generator Model Developed for Turbomachinery
Fan Stall Flutter Flow Mechanism Studied
Centrifugal Compressor Surge Margin Improved With Diffuser Hub Surface Air Injection
Effect of Variable Chord Length on Transonic Axial Rotor Performance Investigated
Heated Surface Temperatures Measured by Infrared Detector in a Cascade Environment
Pulse Detonation Engine Test Bed Developed
One-Dimensional Spontaneous Raman Measurements of Temperature Made in a Gas Turbine Combustor
High-Pressure Gaseous Burner (HPGB) Facility Completed for Quantitative Laser Diagnostics Calibration
Spray and High-Pressure Flow Computations in the National Combustion Code (NCC) Improved
Sector Tests of a Low-NOx, Lean, Direct-Injection, Multipoint Integrated Module Combustor Concept Conducted
Transonic Resonance Demonstrated To Be a Source of Internal Noise From Mixer-Ejector Nozzles
Influence of Turbulence on the Restraint of Liquid Jets by Surface Tension in Microgravity Investigated
Liquid Oxygen Propellant Densification Unit Ground Tested With a Large-Scale Flight-Weight Tank for the X-33 Reusable Launch Vehicle
Aeroacoustic Flow Phenomena Accurately Captured by New Computational Fluid Dynamics Method
CAD/CAE Integration Enhanced by New CAD Services Standard
Turbopump Performance Improved by Evolutionary Algorithms
Structures and Acoustics
High-Fidelity Micromechanics Model Developed for the Response of Multiphase Materials
Higher Order Theory--Structural/MicroAnalysis Code (HOT-SMAC) Developed
Deformation, Failure, and Fatigue Life of SiC/Ti-15-3 Laminates Accurately Predicted by MAC/GMC
MAC/GMC Code Enhanced for Coupled Electromagnetothermoelastic Analysis of Smart Composites
Influence of Cooling Channels Geometry on the Thermal Response in Silicon Nitride Plates Studied
Integrated Nondestructive Evaluation and Finite Element Analysis Predicts Crack Location and Shape
Scanning Electron Microscope Mapping System Developed for Detecting Surface Defects in Fatigue Specimens
Life Prediction/Reliability Data of Glass-Ceramic Material Determined for Radome Applications
Vibration Monitoring Techniques Applied to Detect Damage in Rotating Disks
New Approach to Ultrasonic Spectroscopy Applied to Flywheel Rotors
High-Strength Composite Fabric Tested at Structural Benchmark Test Facility
Initial Mechanical Testing of Superalloy Lattice Block Structures Conducted
Scanning Ultrasonic Spectroscopy System Developed for the Inspection of Composite Flywheels
CARES/
Life
Used for Probabilistic Characterization of MEMS Pressure Sensor Membranes
Aeroelastic Calculations of Quiet High-Speed Fan Performed
Fail-Safe Operation of a High-Temperature Magnetic Bearing Investigated for Gas Turbine Engine Applications
Linear-Quadratic-Gaussian Regulator Developed for a Magnetic Bearing
Self-Tuning Impact Dampers Designed for Turbomachinery Blade Vibration Suppression
Finite Element Analysis of Morphing Piezoelectric Structures Studied
Advanced Vibration Analysis Tools and New Strategies Developed for the Robust Design of Turbine Engine Rotors
Neural Network and Regression Soft Model Extended for PAX-300 Aircraft Engine
Excellent Ballistic Impact Properties Demonstrated by New Fabric
New Fan Engine Noise-Reduction Concept Using Trailing Edge Blowing of Fan Blades Demonstrated
Gear Damage Detection Integrating Oil Debris and Vibration Measurement Technologies Developed
Rudder/Fin Seals Investigated for the X-38 Re-Entry Vehicle
NASA Space Mechanisms Handbook and Reference Guide Expanded Into CD-ROM Set
Comparison Made of Operating Characteristics of Spiral Bevel Gears Manufactured Using Different Methods
Gear Crack Propagation Path Studies--Guidelines Developed for Ultrasafe Design
Gear Transmission Error Measurement System Made Operational
Proof-of-Concept Traction Drive Designed for Planetary Exploration
Atomistic Modeling of Semiconductors: Si, C, and 3C-SiC
Mystery of Foil Air Bearings for Oil-Free Turbomachinery Unlocked: Load Capacity Rule-of-Thumb Allows Simple Estimation of Performance
Heat Treatment Used to Strengthen Enabling Coating Technology for Oil-Free Turbomachinery
Space
Space Communications
ACTS Operations Extended Through a University-Based Consortium
Architecture Studies Done for High-Rate Duplex Direct Data Distribution (D4) Services
Aeronautical Satellite-Assisted Process for Information Exchange Through Network Technologies (Aero-SAPIENT) Conducted
Microgravity Science
Bi-Component Droplet Combustion Experiment Designed
Combustion of Interacting Droplet Arrays Being Studied
Dynamics of Diffusion Flames in von Karman Swirling Flows Studied
Flow and Transport of Granular Materials Studied
Dynamic Light-Scattering Probe Used for the Very Early Detection of Cataracts and To Measure Response to Therapy (or Treatment)
New Method Developed to Measure Contact Angles of a Sessile Drop
Phase-Shifting Liquid Crystal Interferometers Demonstrated
Microscale Heaters Detailed Boiling Behavior in Normal Gravity and Microgravity
Novel Optical Technique Developed and Tested for Measuring Two-Point Velocity Correlations in Turbulent Flows
Advanced Microgravity Acceleration Measurement Systems Being Developed
Physics of Colloids in Space: Microgravity Experiment Launched, Installed, and Activated on the International Space Station
Gas/Liquid Separator Being Developed for Microgravity
Compact Video Microscope Imaging System Implemented in Colloid Studies
Light Microscopy Module: On-Orbit Microscope Planned for the Fluids Integrated Rack on the International Space Station
Power and Propulsion
Flywheel Energy Storage System Designed for the International Space Station
International Space Station Power System Model Validated
Solar Electric Propulsion Technologies Being Designed for Orbit Transfer Vehicle Applications
Engineering and Technical Services
Facilities and Test Engineering
8- by 6-Foot Supersonic Wind Tunnel Compressor Inspected
Sonic Boom Testing Performed in NASA Glenn Research Center’s 10- by 10-Foot Supersonic Wind Tunnel
Small Hot Jet Aeroacoustic Rig Commissioned Into Service
Engineering Design and Analysis
Acoustically Enhanced Electroplating Being Developed
Hybrid Power Management Program Continued
Novel Engineering and Fabrication Techniques Tested in Low-Noise-Research Fan Blades
High-Flow Jet Exit Rig Will Be Testing Nozzles in 2002
Understanding of the Dynamics of the Stirling Convertor Advanced by Structural Testing
Preliminary Sizing Completed for Single-Stage-to-Orbit Launch Vehicles Powered by Rocket-Based Combined Cycle Technology
CORBASec Used to Secure Distributed Aerospace Propulsion Simulations
Observer-Based Magnetic Bearing Controller Developed for Aerospace Flywheels
Commercial Off-the-Shelf Microelectromechanical Systems (MEMS) Flow-Measurement Probes Fabricated and Assembled
Commercial Technology
Numerical Propulsion Systems Simulation (NPSS): A Common Propulsion System Simulation Tool
Aeronautics
NASA Glenn Organizational Chart
Last updated: June 2002
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