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Transient Region Coverage in the Propulsion IVHM Technology ExperimentOver the last several years researchers at NASA Glenn and Ames Research Centers have developed a real-time fault detection and isolation system for propulsion subsystems of future space vehicles. The Propulsion IVHM Technology Experiment (PITEX), as it is called follows the model-based diagnostic methodology and employs Livingstone, developed at NASA Ames, as its reasoning engine. The system has been tested on,flight-like hardware through a series of nominal and fault scenarios. These scenarios have been developed using a highly detailed simulation of the X-34 flight demonstrator main propulsion system and include realistic failures involving valves, regulators, microswitches, and sensors. This paper focuses on one of the recent research and development efforts under PITEX - to provide more complete transient region coverage. It describes the development of the transient monitors, the corresponding modeling methodology, and the interface software responsible for coordinating the flow of information between the quantitative monitors and the qualitative, discrete representation Livingstone.
Document ID
20040077375
Acquisition Source
Ames Research Center
Document Type
Preprint (Draft being sent to journal)
Authors
Balaban, Edward
(NASA Ames Research Center Moffett Field, CA, United States)
Sweet, Adam
(NASA Ames Research Center Moffett Field, CA, United States)
Bajwa, Anupa
(NASA Ames Research Center Moffett Field, CA, United States)
Maul, William
(NASA Glenn Research Center Cleveland, OH, United States)
Fulton, Chris
(NASA Glenn Research Center Cleveland, OH, United States)
Chicatelli, amy
(NASA Glenn Research Center Cleveland, OH, United States)
Date Acquired
September 7, 2013
Publication Date
January 1, 2004
Subject Category
Spacecraft Design, Testing And Performance
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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