磁流变调谐液柱阻尼器半主动地震反应控制研究  

Study on semi-active seismic response control using magnetorheological tuned liquid column dampers(MR-TLCD)

作　　者：宋璨[1] 王修勇[1] 陈政清[1] 

机构地区：[1]湖南大学风工程试验研究中心,湖南长沙410082

出　　处：《世界地震工程》2009年第3期49-54,共6页World Earthquake Engineering

基　　金：国家自然科学基金项目(50578063);国家自然科学重点项目(50738002)

摘　　要：结构的半主动控制装置是国际上研究的一个热点。磁流变式调谐液柱阻尼器(MR-TLCD)是一种新型的减振驱动器。文中提出了抑制结构水平振动的MR-TLCD模型,建立了MR-TLCD与结构相互作用的运动方程。在经典线性最优控制(COC)和瞬时最优控制(IOC)算法的基础上,研究了Clipped-optimal半主动控制策略的减振效果,并与被动控制的减振效果进行了对比。结果表明:磁流变式调谐液柱阻尼器的半主动控制能够有效地减小结构的地震反应,且优于被动控制。Semi-active control devices for structures are a hot spot of research in the world. Magnetorheological tuned liquid column damper （MR-TLCD） is a new kind of device for vibration control of the structures. A theoreti- cal model of MR-TLCD for suppressing horizontal vibration of the structures is developed in the paper. The MR-TL- CD-structure interaction equations are formulated. The control effect on semi-active control strategy of clipped-opti- mal is studied based on the classical optimal control algorithm and the instantaneous optimal control algorithm. Then it is compared with the passive control effect. The results show that the semi-active control of the structure u- sing MR-TLCD can reduce the structural seismic response efficiently. Moreover, the effect of semi - active control is better than that of passive control.

关 键 词：磁流变式调谐液柱阻尼器 理论模型 地震反应 最优控制算法 半主动控制 

分 类 号：TU311.3[建筑科学—结构工程]