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Model Updating in Online Aircraft Prognosis Systems

Award Information

National Aeronautics and Space Administration
Award ID:
Program Year/Program:
2007 / SBIR
Agency Tracking Number:
Solicitation Year:
Solicitation Topic Code:
Solicitation Number:
Small Business Information
Sentient Corporation
850 Energy Drive Suite 307 Idaho Falls, ID -
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Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Phase 2
Fiscal Year: 2007
Title: Model Updating in Online Aircraft Prognosis Systems
Agency: NASA
Contract: NNA07BA40C
Award Amount: $598,565.00


The objective of this research is to develop algorithms for online health monitoring and prognostics (prediction of the remaining life of a component or system) in aerospace applications. The specific areas of need addressed by this project relate to fusion of sensor-based diagnostics with degradation models, management and propagation of uncertainty, autonomous model updating, and practical considerations such as reducing data volume and storage requirements. The algorithms developed in this project represent the generalizable aspects of predictive prognosis; the only application-specific portions are the fault model and the diagnostic signal processing. The Phase I work successfully demonstrated the basic features of the prognosis algorithms using data for several bearing fault examples. In Phase II, Sentient will develop these algorithms into a complete, full-featured prognosis architecture. Application-specific fault models and diagnostics for a NASA relevant application will also be developed in Phase II, and these will be used to demonstrate the complete Phase II prognostic system. Sentient will leverage extensive test data available from other closely related projects to thoroughly evaluate the new prognostic algorithms. This data includes studies of bearing cage instability phenomena conducted in a unique space environment test rig. Combined with the new prognosis algorithms, this will be directly applicable to help understand and predict recent bearing anomalies observed in the CMGs of the International Space Station.

Principal Investigator:

Sean R. Marble
Principal Investigator

Business Contact:

Sean D. Marble
Small Business Information at Submission:

Sentient Corporation
850 Energy Drive Idaho Falls, ID 83401

EIN/Tax ID: 820533423
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No