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

作     者：LIU Jingbo WANG Libin DU Yixin WANG Yan 

作者机构：Department of Civil Engineering Tsinghua University Beijing 100084 China 

出 版 物：《Transactions of Tianjin University》 (天津大学学报（英文版）)

年 卷 期：2006年第12卷第B9期

页      面：65-69页

学科分类：08[工学] 0802[工学-机械工程] 

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

主　　题：blast shock isolation magnetorheological fluid damper semi-active control simulink 

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.