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纯电动汽车白车身拓扑优化设计及性能验证

Release Time:2019-03-11  Hits:

Indexed by: Journal Article

Date of Publication: 2012-12-28

Journal: 实验室科学

Volume: 15

Issue: 6

Page Number: 37-39,43

ISSN: 1672-4305

Key Words: 纯电动汽车;拓扑优化;白车身设计;车身刚度

Abstract: 基于变密度结构拓扑优化方法,以柔度最小化为目标建立了汽车白车身拓扑优化数学模型.对其白车身结构在静载荷、弯曲载荷,以及扭转载荷工况下分别进行拓扑优化设计,得到相应的最优拓扑结构.通过建立基于优化结果的白车身线框模型对其弯曲和扭转刚度进行验证.数值算例结果证明,拓扑优化方法能够得到具有工程实用价值的纯电动汽车白车身最优结构,在满足车身结构刚度要求的同时实现车身轻量化.

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