多自由度结构的磁流变阻尼顶层隔振控制  

MDOF roof isolation struclure with magnetrheological damper

作　　者：杨飏[1] 欧进萍[2] 

机构地区：[1]东北大学资源与土木工程学院,辽宁沈阳110004 [2]哈尔滨工业大学土木工程学院,黑龙江哈尔滨150090

出　　处：《世界地震工程》2008年第2期85-89,共5页World Earthquake Engineering

摘　　要：提出了应用磁流变阻尼装置的多自由度结构顶层隔振控制方法。首先,以大质量比TMD控制的减振机理为基础,对顶层隔振结构的动力特性进行研究,建立合理的顶层隔振结构体系;然后,采用磁流变阻尼器对顶层隔振结构的隔振层进行被动和半主动控制,以避免其控制范围较窄的缺点;最后,对三自由度结构进行顶层隔振控制时程分析,得到了比较理想的控制效果。In this paper,MDOF roof isolation structure with the MR damper is analyzed.Firstly,based on the theories of big mass ratio TMD control,the dynamic characteristics of the roof isolation structure are studied.The main effects are gain and the logical system is set up.Secondly,isolation is controlled by MR damper to avoid the shortcoming that range of control is very narrow.The passive control and semi-active control are adopted to improve the effect.Finally,the 3-degree of freedom roof isolation structure wit...

关 键 词：顶层隔振结构 磁流变阻尼器 被动控制 半主动控制 

分 类 号：TU352.12[建筑科学—结构工程]