建筑结构地震反应的智能隔震控制  

Intelligent Isolation Control for Seismic Response of Structure

作　　者：吕明云[1] 瞿伟廉[1] 涂建维[1] 

机构地区：[1]武汉理工大学

出　　处：《武汉理工大学学报》2002年第4期62-65,共4页Journal of Wuhan University of Technology

基　　金：国家自然科学基金重点资助项目 (5 0 0 380 10 )

摘　　要：研究了 ER/MR阻尼器和隔震垫组成的智能基础隔震系统对结构地震反应的半主动控制方法。智能基础隔震系统中应用 ER/MR可调阻尼器能够有效地改善被动基础隔震系统的性能 ,保护基础隔震系统因过大的水平变形而产生失效破坏。根据智能基础隔震的特点 ,建立了基于瞬时最优控制的半主动控制策略。仿真计算表明智能基础隔震系统不仅能够减小上部结构的地震反应 ,还能够有效地保护隔震系统的变形 ,是一种性能非常优异的智能控制系统。The smart properties of homogeneous electrorheological fluid (HERF) containing side-chain type liquid crystalline polymer were studied and an actual HERF damper with an adjustable viscosity was produced.A mechanical model of the HERF smart damper was established on the basis of experiment and theoretical analysis.Then a controlled equation of SDOF structure by HERF damper was derived and a semi active control strategy based on optimal sliding displacement of damper was presented.The simulation results for a single story frame structure indicate that HERF,which may avoid some defects of common particles suspended ER fluids,is an excellent smart material with better stability.Using the semi active control strategy presented,HERF smart damper controlled could effectively reduce seismic responses of structures and keeps the control stable at all times.

关 键 词：智能基础隔震系统 半主动控制 地震反应 建筑结构 智能控制 

分 类 号：TU352.12[建筑科学—结构工程]