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Abstract: A semi-active static output feedback fuzzy sliding mode controller is designed for floating raft isolation system with electrorheological (ER) damper. Sliding surface matrix is selected in accordance with Hurwitz stable judgement of sliding mode motion equation. Force transmissibility, input force and output force response of floating raft isolation system, respectively, under chirp ex-citing signal and dual-frequency exciting signal are simulated. The simulation results indicate that the performance of floating raft isolation system designed with semi-active static output feedback fuzzy sliding mode control method is remarkably better than those of optimally passive damping.
Key words: Semi-active Fuzzy sliding mode Floating raft Vibration isolation system
CLC No:
TP273.4 TB535
国家自然科学基金资助项目(69974024).
Received
20070315,
received
in
revised
form 20070826
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