建筑物-设备互动体系的减震机理研究  

STUDY ON SHOCK ABSORPTION MECHANISM IN STRUCTURE-EQUIPMENT INTERACTING SYSTEM

作　　者：薛茹[1] 安里千[1] 李怀奇[1] 

机构地区：[1]中国矿业大学北京校区力学与建筑学院

出　　处：《力学与实践》2004年第4期27-31,共5页Mechanics in Engineering

基　　金：河南省科技攻关项目(001150201)资助

摘　　要：将结构及结构中某些设备分别视为主、子结构组成互动体系,通过对这种结构的频域分析,得到了在外部激励荷载作用下结构反应的概率特性,主、子结构的相互作用情况,以及由于主、子结构的相互作用对主结构产生减震效果的减震机理,并分析了互动减震体系中对减震效果有影响的因素。研究表明,互动减震体系的减震机理是子结构向主结构施加一个惯性力,其大小与激励外力相等,方向相反,使主结构 的振动消失。Under the dynamical load, the interaction between the structure and its interior equipment is evident. In this interacting system, the structure is considered as the main-structure, and the interior equipment is regarded as a sub-structure. Its mechanism and influencing factor of reducing vibration are studied by means of frequency domain analysis. The result of study indicates that the mechanism is that the sub-structure provides an inertial dynamic load, and the load can reduce the vibration of the interacting system.

关 键 词：结构力学 结构控制 结构减震 频域分析 减震机理 

分 类 号：TU311.2[建筑科学—结构工程]