期刊
JOURNAL OF SOUND AND VIBRATION
卷 329, 期 21, 页码 4335-4353出版社
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.jsv.2009.09.017
关键词
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资金
- National Natural Science Foundation of China [60825303]
- Research Found for the Doctoral Programme of Higher Education of China [20070213084]
- Fok Ying Tung Education Foundation [111064]
The control synthesis problem is investigated in this paper for a class of semi-active seat suspension systems with norm-bounded parameter uncertainties, time-varying input delay and actuator saturation. A vertical vibration model of human body is introduced in order to make the modeling of seat suspension systems more precise. By employing a delay-range-dependent Lyapunov function and exploring the property of the saturation nonlinearity, the existence conditions of the desired state-feedback controller are derived in terms of linear matrix inequalities (LMIs). The controller is derived by solving the LMIs and the corresponding closed-loop system is asymptotically stable with a guaranteed H, performance. A design example is presented to show the usefulness and advantages of the developed theoretical results. (C) 2009 Elsevier Ltd. All rights reserved.
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