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《Chinese Journal of Computational Mechanics》 2007-03
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Study on combined multi-unit isolated structures with magneto-rheological dampers by fuzzy control

ZOU Li-hua*1,HUANG Kun1,2(1.School of Civil Engineering,Lanzhou Jiaotong University,Lanzhou 730070,China;2.Sanli Architecture Design Company Limited of Shandong,Jinan 250100,China)  
A new vibration-control system of combined multi-unit isolated structures was presented with its dynamic model and vibration equations established.Based on instantaneous optimum control algorithm,the control force was expressed in the form of damping force.Using fuzzy control method,this system was controlled by magneto-rheological dampers.The control features were analyzed through computer simulation and the results were compared with LQR's.The conclusions suggest that the vibration-control of this system is effective with earthquake responses declining visibly in every structure.At the same time,the fuzzy control doesn't need establishing accurate computation model but has an effectiveness contrast with LQR's.The energy input is reduced by using magneto-rheological dampers as controllers and it is easier to set up spring-dampers between the second and the third structure.
【Fund】: 兰州交通大学“青蓝”人才(QL-05-08A)工程资助项目
【CateGory Index】: TU352.12
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