汽车副车架疲劳试验及结构改进分析

Fatigue Test and Structure Improvement Analysis of Automobile Sub-Frame

摘要: 本文搭建了疲劳试验台架，并对某款汽车副车架进行了疲劳破坏试验，存在着局部结构不足之处，提出了结构优化的方案。通过前后对比分析及试验验证，优化方案提高了结构刚度，能更好满足汽车悬架性能的要求。这对于汽车前副车架的开发及其应用具有现实的指导意义。

Abstract: Fatigue test bench is built in this paper, and the sub-frame of a vehicle fatigue test is tested. There are local structural deficiencies, and structure optimization scheme is proposed. Through comparison analysis and experimental verification, the optimization scheme of the structure stiffness is improved, and can better meet the requirements of the automobile suspension performance. This is practical guiding significance for the development and application of front sub-frame.