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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Montgomery, Raymond C. Williams, Jeffrey P. |
| Copyright Year | 1985 |
| Description | Author affiliation: NASA Langley Research Center, Hampton, VA 23665 (Montgomery, Raymond C.; Williams, Jeffrey P.) |
| Abstract | This paper presents a scheme for on-line failure detection in systems with appreciable structural dynamics. The design is suboptimal because of extensive computational requirements of optimal schemes. To accomplish failure detection, the innovations sequence of a finite order Kalman filter is examined. Because of the heavy dependence of the system on the zero-mean character of the innovations sequence of the filter much attention has been given to the design and evaluation of the Kalman filters used. The filter designs are based on modal models of the structural dynamics. Two modal models were considered, one based on an analytic finite element model and the other based on empirically derived frequency and damping. Experiments using a grid structure are presented which illustrate operation and performance of the filter designs based on these models. The general character of the results presented is that appreciable errors exist in the filter design based on the finite element model. Substantial improvement results if the design model is modified to include empirically derived frequency and damping. |
| Starting Page | 984 |
| Ending Page | 992 |
| File Size | 2062022 |
| Page Count | 9 |
| File Format | |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 1985-06-19 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | American Automatic Control Council(AACC) |
| Subject Keyword | System testing Filters Control systems Technological innovation Frequency Space vehicles NASA Finite element methods Damping Aerodynamics |
| Content Type | Text |
| Resource Type | Article |
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