某轿车副车架轻量化设计  

Subframe lightweight design of passenger car

作　　者：李锦[1] 苏小平[1] 王宏楠[1] 陈宇晖 张才伟 

机构地区：[1]南京工业大学机械与动力工程学院,江苏南京211800 [2]宁波跃进汽车前桥有限公司,浙江宁波315021

出　　处：《南京工业大学学报（自然科学版）》2013年第5期125-128,共4页Journal of Nanjing Tech University(Natural Science Edition)

摘　　要：以制动工况为例,对副车架初始设计进行结构强度计算和模态分析,然后利用ANSYS对副车架进行尺寸优化,在强度允许范围内,减小副车架零件厚度,达到减轻副车架质量的目的,最后对优化后的副车架强度和模态频率进行验证。结果表明,副车架总质量减轻9.5%,说明该轻量化方法是可行的,为今后的副车架设计及改进工作提供参考。The structural strength calculation and the modal analysis were performed based on brake con- dition for the initial design of the subframe. Then, the size of the subframe was optimized by using ANSYS software and the thickness of the parts was reduced in the range of allowable strength to decrease the mass of subframe. Finally, the strength and the modal frequency of the optimized subframe were tested. The total weight of the subframe reduced 9. 5 %. The results provided a reference for the design and improve- ment of the subframe.

关 键 词：副车架 轻量化 静力分析 模态分析 

分 类 号：TH12[机械工程—机械设计及理论] U463.32[机械工程—车辆工程]