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.
出处
《吉林大学学报（工学版）》
EI
CAS
CSCD
北大核心
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)
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
vehicle engineering
SUV body-in-white （BIW）
implicit parametric
correlation analysis
multiple performance optimization
lightweight
