Soft Computing Algorithm to Data Validation in Aerospace Systems Using Parity Space Approach
Publication: Journal of Aerospace Engineering
Volume 20, Issue 3
Abstract
This paper deals with the problem of data validation of an instrumentation system applied in the aerospace area. The fault diagnosis method used for the validation is based on the principle of the parity space approach. Residuals are generated thanks to the analytical redundancy relations given by the model and the important number of sensors. Indeed, we propose a procedure, which permits us to compute systematically all the redundancy equations for the residual generation phase. The additional concept, called residuals structuration, is necessary to isolate the detected faults. Finally, the data validation task consists in isolating the failing data and in sending only the valid information to a control system. An application to an aerospace system illustrates the proposed algorithm.
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Acknowledgments
The writers gratefully acknowledge the CNES (Centre National d’Etudes Spatiales-CNES) and Snecma-Moteurs for their financially support in all this study within the framework of data validation of engines on test benches.
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Information & Authors
Information
Published In
Journal of Aerospace Engineering
Volume 20 • Issue 3 • July 2007
Pages: 165 - 171
Copyright
© 2007 ASCE.
History
Received: Oct 25, 2005
Accepted: Oct 30, 2006
Published online: Jul 1, 2007
Published in print: Jul 2007
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