摘要
采用拓扑优化的方法对FSAE(Formula SAE)赛车车架结构进行优化改进。经过拓扑优化后车架的结构更加简洁,改进后车架的前后舱管件减少,质量降低,前环由倾斜改为垂直设计,降低了加工难度。采用尺寸优化对车架进行轻量化设计研究。经过尺寸优化后,得到了不同部位钢管的壁厚参数,实现车架减重13%的轻量化目标。对车架性能进行仿真分析,验证了车架强度满足使用要求,同时车架的弯曲刚度和一阶模态频率都比原车架有所提高,保证了FSAE赛车车架结构的性能和轻量化。
The topology optimization method was used to optimize the frame structure of FSAE racing car. Results show that after optimization the structure is more compact and the frame weight is reduced due to the removed tubes on the front and rear tank. The front ring is changed from inclined to vertical, which allows for easier processing. After size optimization for lightweight design, the frame weight is reduced by 13% and the tube thicknesses in different locations were obtained. The simulation analysis was carried out for the frame to verify that the strength meets the requirements. Meanwhile the bending stiffness and the first order modal frequency are also improved so that both the performance and lightweight of FSAE car are ensured.
出处
《汽车工程学报》
2016年第1期35-42,共8页
Chinese Journal of Automotive Engineering
基金
广东省科技计划(2013B010402006
2013B010405007)
