轿车乘坐室声固耦合系统动态特性分析  

Dynamic Analysis of the Automobile Passenger Compartment with Acoustic-Structure Coupling System

作　　者：李晓宁[1] 沈颖刚[1] 兰洋[1] 马维忍[2] 

机构地区：[1]昆明理工大学交通学院,云南昆明650224 [2]天津大学内燃机燃烧学国家重点实验室

出　　处：《小型内燃机与摩托车》2009年第4期41-44,共4页Small Internal Combustion Engine and Motorcycle

基　　金：云南省省院省校科技合作计划项目;编号:2006yx21;云南省中青年学术技术带头人后备人才专项基金资助;编号:2007py01-07

摘　　要：首先分别建立了白车身与乘坐室空腔有限元模型,并分别对其进行了模态分析,得到了系统的动态特性的基本信息。然后应用声固耦合理论,充分考虑了车身结构与乘坐室空腔的耦合作用,对乘坐室声固耦合模型进行了频率响应计算,并对结果进行了分析。In this paper, the finite models of body in white and compartment were established respectively first, and then the modal analysis were performed respectively. The basic information of the dynamic characteristics of the system was obtained. Then with the application of the theory for acoustic-structure coupling, the impact of the coupling for the structure of body and compartment was considered completely. The frequency response analysis was performed for the compartment with acoustic-structure coupling model and then the results were analyzed.

关 键 词：乘坐室 模态分析 声固耦合 频率响应 

分 类 号：U461.1[机械工程—车辆工程]