高速列车浮式地板振动响应有限元分析  

Finite element analysis on vibration response of floating floor of high speed strain

作　　者：朱建新[1] 郑百林[1] 武秀根[2] 

机构地区：[1]同济大学航空航天与力学学院,上海200092 [2]同济大学土木工程学院,上海200092

出　　处：《计算机辅助工程》2012年第3期61-64,共4页Computer Aided Engineering

摘　　要：针对采用试验方法开发高速列车浮式地板耗时耗力,且试验规模小,不能反映整车的振动效果的问题,基于有限元法进行高速列车振动响应分析.对三明治夹芯理论、蜂窝板理论和等效板理论进行比较,确定采用等效板理论数值模拟某浮式地板中的蜂窝板;利用橡胶材料的超弹性理论拟合橡胶材料参数;建立完整模型模拟实际工况下浮式地板的振动响应,得到浮式地板的隔振效果.结果表明此浮式地板的隔振效果约为90%,满足设计要求.As to the problems that the test method is time-consuming and labor-intensive for the development of high speed train floating floors, and the test is too small to reflect the vibrating effect of the whole train, the finite element method is used to analyze the vibrating response of high speed train. Based on the comparisons of the sandwich theory, the honeycomb plate theory and the equivalent plate theory, the equivalent plate theory is selected to simulate the honeycomb plate in a floating floor; the parameters of the rubber material are fitted by the hyperelastic theory of rubber; the complete model is built to simulate the vibration response of floating floors under the actual working conditions, and the vibration isolation effect of the floating floor is obtained. The results show that the vibration isolation effect of the floating floor is about 90% , which meets the design requirements.

关 键 词：高速列车 浮式地板 等效板理论 隔振 橡胶本构模型 

分 类 号：U270.1[机械工程—车辆工程]