A Blast Shock Isolation System with MRFD and Its Semi-Active Control Analysis  

作　　者：LIU Jingbo WANG Libin DU Yixin WANG Yan 

机构地区：[1]Department of Civil Engineering, Tsinghua University, Beijing 100084, China

出　　处：《Transactions of Tianjin University》2006年第B09期65-69,共5页天津大学学报（英文版）

基　　金：Supported by the National Civil Defense Office of China for the Tenth Five-Year Plan and Tsinghua Basic Research Foundation (No.JC2003001)

摘　　要：To effectively reduce the damage to people and devices in civil defense engineering subjected to blast shock, a blast shock isolation system with magnetorheological fluid dampers (MRFD) is proposed. MRFD can provide continuously adjustable Coulomb friction and has many advantages for semi-active control. Numerical simulation of this isolation system is finished using Matlab simulink toolbox. General semi-active control algorithms are consided based on instantaneous optimal active control algorithm. And the results indicate that the shock isolation system can work efficiently, decreasing about 93% of the peak acceleration of the isolation floor.To effectively reduce the damage to people and devices in civil defense engineering subjected to blast shock, a blast shock isolation system with magnetorheological fluid dampers （MRFD） is proposed. MRFD can provide continuously adjustable Coulomb friction and has many advantages for semi-active control. Numerical simulation of this isolation system is finished using Matlab simulink toolbox. General semi-active control algorithms are consided based on instantaneous optimal active control algorithm. And the results indicate that the shock isolation system can work efficiently, decreasing about 93% of the peak acceleration of the isolation floor.

关 键 词：blast shock ISOLATION magnetorheological fluid damper semi-active control SIMULINK 

分 类 号：TB41[一般工业技术]