具有弹性地基的多层隔振系统的动力学方程  

The Dynamic Equations of Multi Layer Vibration Isolation System with Elastic Foundation

作　　者：金卫军[1] 黄其柏[1] 廖道训[1] 

机构地区：[1]华中理工大学机械科学与工程学院

出　　处：《华中理工大学学报》1999年第6期48-50,共3页Journal of Huazhong University of Science and Technology

基　　金：国家"九五"攀登计划项目

摘　　要：导出了地基土层的动能、势能及该土层的等效质量、等效刚度、等效阻尼系统，从而对于具有弹性地基及联合基础的多层隔振系统提出了一种动力学建模的新方法．该方法能较简便地将弹性地基等效为一个附加在原基础之下的质－弹－阻隔振层，从而将这一复杂的隔振系统的动力学建模问题转化为一般的多层隔振系统的动力学建模问题．Some expressions are derived including kinetic energy, potential energy and equivalent dynamic parameter (mass, stiffness, damping coefficient) of foundation soil. A new method of dynamic modeling for multi layer vibration isolation system with elastic foundation is presented. This method can make the elastic foundation to be simply equivalent to a vibration isolation layer of mass elasticity damping arranged under the original base and further transform the modeling of complicated vibration isolation system into the modeling of general multi layer vibration isolation system.

关 键 词：弹性地基 联合基础 多层隔振系统 动力学方程 

分 类 号：TU471.2[建筑科学—结构工程] TU352.12[建筑科学—土工工程]