Health Management for Gas Turbine Engine Accessory Components

Award Information
Agency: Department of Defense
Branch: Air Force
Contract: FA8650-07-C-2734
Agency Tracking Number: F061-171-1843
Amount: $749,889.00
Phase: Phase II
Program: SBIR
Awards Year: 2007
Solicitation Year: 2006
Solicitation Topic Code: AF06-171
Solicitation Number: 2006.1
Small Business Information
850 Energy Drive, Idaho Falls, ID, 83401
DUNS: 089822014
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Sean Marble
 Technology Lead
 (802) 876-3100
Business Contact
 Sean Marble
Title: Technology Lead
Phone: (802) 876-3100
Research Institution
The overall objective of this project is to develop an effective and practical diagnostic/prognostic capability for turbine engine accessories. The Phase I effort demonstrated the effectiveness of combining high fidelity physics-based models with feature based algorithms to diagnose incipient faults in turbine engine accessories. The goals for Phase II are to fully implement these techniques and to develop complete, functional diagnostic software for an accessory subsystem and demonstrate its performance on high fidelity bench test data using the actual aircraft hardware. A logical choice would be a fluid pump such as the one used for the Phase I proof-of-concept; data from Tinker AFB indicates that fluid pumps are one of the more problematic accessory components in the F100 and F110 engines. Phase II work will include further development of a detailed physics-based model, and coupling that model with fault diagnosis algorithms. Sentient will leverage its extensive in-house test capability to perform seeded fault bench tests on actual engine accessory hardware. Using this data, the final diagnostic algorithms will be used to identify the presence, type and severity of the various types of fault present in the hardware. This will be performed over the full range of speeds and loads occurring in actual use, including typical transients, to demonstrate resistance to false alarms. The final algorithms will also be benchmarked for computational requirements. By the end of Phase II, Sentient will demonstrate diagnostic performance on real aircraft hardware (at TRL 6) with sufficient fidelity such that the Air Force can make a Phase III transition decision.

* Information listed above is at the time of submission. *

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