A Nonlinear Adaptive Approach to Isolation of Sensor Faults and Component Faults

Award Information
Agency:
National Aeronautics and Space Administration
Branch
n/a
Amount:
$99,964.00
Award Year:
2009
Program:
SBIR
Phase:
Phase I
Contract:
NNX09CC71P
Award Id:
90571
Agency Tracking Number:
084420
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
200 Canal View Blvd, Suite 300, Rochester, NY, 14623
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
073955507
Principal Investigator:
LiangTang
Principal Investigator
(585) 424-1990
liang.tang@impact-tek.com
Business Contact:
CarolMarquardt
Business Official
(585) 627-1923
carol.marquardt@impact-tek.com
Research Institute:
n/a
Abstract
Impact Technologies, LLC in collaboration with Wright State University and Pratt & Whitney, propose to develop innovative methods to differentiate sensor failure from actual system or component failure for advanced propulsion systems. In sharp contrast to many conventional methods which deal with either sensor failure or component failure but not both, our method considers sensor failure and component failure under one systematic and unified framework. The proposed solution consists of two main components: a bank of real-time nonlinear adaptive fault diagnostic estimators for residual generation and a Transferable Belief Model (TBM) based component for residual evaluation. By employing a nonlinear adaptive learning architecture, the presented approach is capable of directly dealing with nonlinear engine models and nonlinear faults without the need of linearization. Fault sensitivity and robustness to modeling uncertainty is enhanced by several important techniques including adaptive reference nonlinear engine model, adaptive diagnostic thresholds, and TBM based residual evaluation method. Software modules will be developed and integrated into the NASA C-MAPSS engine model for performance evaluation. A subset of core algorithms will be implemented and used in a hardware-in-the-loop demonstration under dSPACE environment to justify a Technology Readiness Level of 4-5 at the conclusion of Phase I.

* information listed above is at the time of submission.

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