Model-Based Reconfigurable Fault Tolerant Control of Jet Engines

Award Information
Agency: Department of Defense
Branch: Air Force
Contract: FA8650-05-M-2582
Agency Tracking Number: F051-180-2120
Amount: $100,000.00
Phase: Phase I
Program: SBIR
Awards Year: 2005
Solicitation Year: 2005
Solicitation Topic Code: AF05-180
Solicitation Number: 2005.1
Small Business Information
15400 Calhoun Drive, Suite 400, Rockville, MD, 20855
DUNS: 161911532
HUBZone Owned: N
Woman Owned: Y
Socially and Economically Disadvantaged: N
Principal Investigator
 Frank Zhang
 Senior Research Engineer
 (301) 294-5269
 xzhang@i-a-i.com
Business Contact
 Mark James
Title: Contracts and Proposals Manager
Phone: (301) 294-5221
Email: mjames@i-a-i.com
Research Institution
N/A
Abstract
In this proposal, Intelligent Automation, Inc. (IAI) proposes a novel reconfigurable fault tolerant control (FTC) approach for advanced jet engines to realize the full potential of model-based engine control technology. The proposed FTC architecture will be achieved through the integration of the model-based engine control concept with a new nonlinear diagnostic scheme that is employed to detect, isolate, and accommodate any faults in the engine signals used for adaptation of the onboard engine model. Therefore, the onboard engine model provides a good representation of the component performance of the physical engine even in the presence of faulty signals for adaptation. The reconfigurable adaptive engine model enables real-time monitoring of engine component performance, sensor/actuator fault diagnosis and accommodation by using virtual measurements of measurable engine variables, and optimal direct thrust control for individual engine. The proposed nonlinear fault diagnosis scheme employs a new nonlinear approach to residual generation and a transferable belief model based diagnostic reasoning method, which has the capability of directly dealing with nonlinear systems/faults, unstructured modeling uncertainty, the occurrence of new or unanticipated faults. The proposed method will lead to fuel efficiency, improved safety and engine performance, and longer service life of future jet engines.

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

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