Robust control of uncertain structures
نویسنده
چکیده
Objective of this paper is to present robust control strategies able to handle acceleration feedback. The robustness of the controller is investigated in respect to both stability and performance measures. The uncertainty set is chosen as a convex one with either real or complex structured uncertainty. H1 control is ®rstly used to comply with the stability requirements whereas a m synthesis approach is then adopted as far as the performance is concerned. The degradation of the performance in respect to the size of the perturbation is eventually proposed as a merit parameter to rank dierent controllers. Numerical simulations are proposed on a MDOF structural system under earthquake excitation. # 1998 Elsevier Science Ltd. All rights reserved.
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