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ID 30110
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Abstract

A control-oriented uncertainty modeling on frequency domain is presented for a class of spectral systems with unknown high-order modal parameters. At any user-specified frequency, the set of all the frequency responses of the feasible systems is characterized on a complex plane in terms of the convex bull of several circle segments, where the system is said to be feasible if partial modal parameters are given and some other conditions are satisfied by the unknown parameters. We emphasize that such a characterization enables us to quantify the least upper bounds of errors for any nominal models, and to develop further efficient results using some additional information. It is shown that, the DC gain information of the system reduces the size of the feasible set to the half or smaller for all frequencies. The efficiency of the presented scheme is demonstrated by a simple example of ideal flexible beam.

Keywords
feasible sets
Kelvin-Voigt damping
dc gain
Note
Published with permission from the copyright holder. This is the institute's copy, as published in SICE 2002. Proceedings of the 41st SICE Annual Conference, 5-7 Aug. 2002, Volume 3, Pages 1588-1591.
Publisher URL:http://ieeexplore.ieee.org/search/wrapper.jsp?arnumber=1196547
Copyright © 2002 IEEE. All rights reserved.
Published Date
2002-8
Publication Title
SICE 2002. Proceedings of the 41st SICE Annual Conference
Volume
volume3
Start Page
1588
End Page
1591
Content Type
Journal Article
language
英語
Refereed
True
Submission Path
industrial_engineering/76