王志亮_基于OptiStruct汽车侧门刚度优化分析.pdf

文档介绍：Altair 2009 HyperWorks 技术大会论文集



基于 OptiStruct 汽车侧门刚度优化分析
王志亮门永新彭鸿汤志鸿
















吉利汽车研究院有限公司

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Altair 2009 HyperWorks 技术大会论文集
基于 OptiStruct 汽车侧门刚度优化分析
Optimization Analysis of Side Door Stiffness
Based on OptiStruct

王志亮门永新彭鸿汤志鸿
(吉利汽车研究院有限公司)


摘要: 基于全球能源的日益紧缺和汽车市场的竞争加剧,汽车的轻量化设计已成为制造
商降低成本和提高市场竞争力的重要手段。但轻量化设计最直接的影响就是零部件刚度和模
态性能的降低。以国内某款优化后的车为例,优化后发现侧门的腰线刚度性能降低较大,针
对此问题提出了三种修改方案:增加腰线加强板厚度,优化焊点及胶的布置点,利用
OptiStruct 对腰线加强板进行形貌优化。对三种方案进行了对比分析,结果发现:第三种方
案在侧门重量和成本不增加的情况下,可满足腰线刚度的目标值。
关键词: 前侧门,腰线刚度,OptiStruct,形貌优化
Abstract:With the global energy growing shortage and petition of automobile
market sharpening, automotive lightweight design has e the main way to decrease
cost and enhance the petitiveness. The effect of automotive lightweight was
performance depreciation to stiffness and mode. Taken a certain car for example, the
optimization result show that the waistline stiffness performance of front side door
decreased sharply. For this thing, three solutions were proposed, including increasing the
reinforced plate thickness, improving the position of weld spot and glue spot,and using
the topography optimization method to optimize the reinforced plate with the OptiStruct.
parative analysis among three solutions pleted, the results show that
the third solution could meet the stiffness