基于模态分析的汽车后地板结构设计优化研究  

Research of Car Rear Floor Structure Design Optimization based on Modal Analysis

作　　者：范蔚锋[1] 王镝[1] 张海华[1] 范俊[1] 

机构地区：[1]泛亚汽车技术中心有限公司,上海201201

出　　处：《上海汽车》2014年第9期9-11,共3页Shanghai Auto

摘　　要：阐述了车身模态分析的定义,分析了影响车身局部低阶模态的因素。以汽车后地板结构为例,以模态/重量比最大化为优化目标,以实际工艺为约束条件,应用稳健性设计方法,并通过有限元模拟计算,对结果进行综合分析,得出基于理论、结合实际的有效提高局部模态的方法。The definition of body modal analysis is expounded, and the factors influencing the local body of low order modal are analyzed. Taking the car rear floor structure as an example, the robust design method is applied and the finite element is simulated by the modal/weight optimization objectives, based on the practical constraints. The result is analyzed, and the method which is effective to improve local mode theory is got.

关 键 词：模态分析 后地板 汽车 设计优化 

分 类 号：U463.8[机械工程—车辆工程]