Real-time diagnostics of the reusable rocket engine using on-line system identificationA model-based failure diagnosis system has been proposed for real-time diagnosis of SSME failures. Actuation, sensor, and system degradation failure modes are all considered by the proposed system. In the case of SSME actuation failures, it was shown that real-time identification can effectively be used for failure diagnosis purposes. It is a direct approach since it reduces the detection, isolation, and the estimation of the extent of the failures to the comparison of parameter values before and after the failure. As with any model-based failure detection system, the proposed approach requires a fault model that embodies the essential characteristics of the failure process. The proposed diagnosis approach has the added advantage that it can be used as part of an intelligent control system for failure accommodation purposes.
Document ID
19910046007
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Guo, T.-H. (NASA Lewis Research Center Cleveland, OH, United States)
Merrill, W. (NASA Lewis Research Center Cleveland, OH, United States)
Duyar, A. (Florida Atlantic University Boca Raton, United States)
Date Acquired
August 14, 2013
Publication Date
January 1, 1990
Subject Category
Systems Analysis
Meeting Information
Meeting: Annual Health Monitoring Conference for Space Propulsion Systems