Propulsion Health Monitoring for Aviation Safety Program

NASA GRC in collaboration with industry and academia is pursuing an aggressive program for developing propulsion system health management technologies that will have a significant impact on increasing aviation safety as well as reducing the operating cost of aircraft engine.

For the Aviation Safety Program (AvSP), the propulsion system malfunctions that are a factor in causing catastrophic failures have been identified and technologies are being developed that will help reduce or eliminate these malfunctions.

For reducing operating cost, technologies are being developed towards enabling a smart self-diagnostic and prognostic propulsion system. Such a smart engine will have advanced smart sensors integrated with on-board engine models and failure detection algorithms that will identify the direct cause for a current or impending problem allowing for timely maintenance action to be taken.

Engine Instrumentation EPR Fuel flow EGT Rotor Speeds Oil Temperature Oil Pressure Engine Vibration Cycle Counts	Health Monitoring Algorithms Gas Path Analysis Trend Monitoring Signal Processing Neural Networks Expert Systems Statistical Analysis	Anomalies & Degradations Sensor & Actuator Failures Increased tip clearance Blade Fouling Blade Leading Edge Blunting FOD Bearing Anomalies Blade Outs Seal Wear Lubrication System Anomalies

Benefits

• Reduced Maintenance Time & Costs
• Reduced Fuel Consumption
• Extended On-Wing Life
• Increased Safety

Project Contact

Don L. Simon
NASA Glenn Research Center
21000 Brookpark Road, M.S. 77-1
Cleveland, Ohio 44135
Phone: (216) 433-3740
Fax: (216) 433-8643
email: donald.l.simon@grc.nasa.gov

responsible official: sanjay garg
site maintenance: edmond wong
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last updated: 2.29.08