整车环境下商用车驾驶室模态刚度灵敏度  

Modal stiffness sensitivity of commercial vehicle cab under full vehicle environment

作　　者：陈宇东[1] 裴春艳[1] 潘淑华[2] 刘晓军[1] 张俊兴[1] 

机构地区：[1]吉林大学机械科学与工程学院,长春130022 [2]中国第一汽车集团公司,长春130011

出　　处：《吉林大学学报（工学版）》2011年第4期1025-1028,共4页Journal of Jilin University:Engineering and Technology Edition

基　　金：吉林省科技发展计划重大项目(20106008)

摘　　要：由于在整车环境下零部件之间存在复杂的耦合关系,大多数汽车零部件优化设计都局限于单个零部件设计。针对整车环境下汽车零部件的优化问题,引进了模态刚度的概念,定义了基于有限单元或单元组(超单元)的模态刚度灵敏度,推导了相应的计算方法。该方法已应用于整车环境下商用车驾驶室的模态刚度灵敏度分析。在计算中,建立了整车的三维有限元模型,并把驾驶室划分为15个超单元。所得的模态刚度灵敏度可直接用来改进驾驶室的结构设计。本文方法为在整车环境下汽车零部件的优化提供了简单有效方法。Most of the component optimization designs of the commercial vehicle are limited to the individual component because of the complex coupling relations between components.Focusing on the optimization problem of the vehicle component under full vehicle environment,a concept of modal stiffness was introduced,a modal stiffness sensitivity（MSS） was defined based on the finite element or the superelement,and the MSS calculation method was derived.The proposed method was applied to MSS analysis of the cab of a commercial vehicle under full vehicle environment.In the calculation,a 3-D finite element model was built for the full vehicle and the cab was divided into 15 superelements.the obtained MSS can be directly used to improve the structural design of the cab.The proposed method provides a simple and effective approach for the optimization of vehicle components under full vehicle environment.

关 键 词：固体力学 商用车 整车环境 驾驶室 模态刚度灵敏度 

分 类 号：O327[理学—一般力学与力学基础]