基于Hyper Works的汽车前副车架拓扑优化设计

Topology Optimization Design of a Car's Front Sub-frame Based on Hyper Works

依据拓扑优化理论,文章总结了拓扑优化的一般流程。以某前副车架为研究对象,依照该流程,建立副车架设计空间,根据副车架安装点刚度及模态性能要求,以副车架轻量化为目标函数,刚度和固有频率为约束条件,对该副车架进行拓扑优化设计,得到了满足刚度和模态性能的副车架材料分布,为副车架的设计提供了参考,大大提升了设计效率。

Based on the theory of topology optimization, this paper summarizes the general process of topology optimization. Treating some front sub-frame as the research subject, we established the design space in compliant with the standard procedure. In accordance with the sub-frame mount stiffness and modal performance requirement, this paper takes the lightweight of the sub-frame as the target function, the stiffness and natural frequency as constraints condition, and topology optimization design of the sub-frame carries out , the material distribution of the sub-frame meet the stiffness and modal requirement. This research not only provided reference to sub-frame but also exponentially improved the efficiency of desigrL