SUV白车身隐式参数化建模及多性能优化轻量化  

Implicit parameterization modeling and multi-performance lightweight optimization for SVU body-in-white

作　　者：陈鑫[1] 胡翠松 宁厚于 吴元强[1] 汪硕[1] 杨昌海[1] 

机构地区：[1]吉林大学汽车仿真与控制国家重点实验室,长春130022

出　　处：《吉林大学学报（工学版）》2016年第6期1780-1785,共6页Journal of Jilin University:Engineering and Technology Edition

基　　金：国家自然科学基金项目(51175214)

摘　　要：SUV白车身的结构形式、载荷形式等与三厢式轿车白车身不同。为了实现某SUV白车身结构的自动快速轻量化设计,建立了该SUV白车身隐式参数化模型。首先利用相关性分析方法分析预先给定的90个位置、形状及厚度等设计变量对车身结构刚度的影响,筛选出具有轻量化潜力的设计变量。然后对筛选出来的30个设计变量进行多性能优化设计,最终取得了良好的轻量化效果。研究结果表明,隐式参数化建模方法及基于相关性分析的多性能优化轻量化设计方法可以应用于SUV车身结构轻量化设计,具有较好的工程指导意义。The structure and load forms and condition constraints of SUV Body-in-white （BIW） are different from that of sedans. In order to quickly realize the automatic lightweight structure of a SUV BIW, an implicit parameterization model of the SUV BIW is built. First, correlation analysis method is applied to analyze the influences of 90 pre given potions, shape, thickness and other designing variables on the body structural rigidity, and the variables with lightweight potential are selected. Then, focusing on 30 selected designing variables, a multi-performance lightweight optimization is carried out to achieve good lightweight effect. Results show that the proposed implicit parameterization model and multi-performance lightweight optimization based on correlation analysis can be applied to SUV BIW structure lightweight design and are of engineering significance.

关 键 词：车辆工程 SUV白车身 隐式参数化 相关性分析 多性能优化 轻量化 

分 类 号：U463.82[机械工程—车辆工程]