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为实现某越野车车架的轻量化设计,基于ABAQUS软件,在极限工况下对某越野车的空投着陆冲击过程进行建模仿真,通过能量平衡验证了有限元模型的正确性,并对车架的刚强度进行了分析。在此基础上,基于尺寸优化理论对越野车车架进行轻量化设计,通过尺寸优化得到了车架主要组成部件的具体尺寸。对优化后的模型再次进行仿真分析,结果表明:越野车车架在刚强度满足设计要求的情况下,车架的质量降低了11.7%,达到了轻量化的目的。
In order to realize the lightweight design of a SUV frame, based on the ABAQUS software, the modeling and simulation of the landing and impacting process of an SUV in extreme conditions are carried out. The correctness of the finite element model is verified through energy balance, The stiffness of the frame was analyzed. On this basis, based on the size optimization theory, SUV frame lightweight design, through the size optimization of the main components of the frame of the specific size. The optimized model is simulated again. The results show that the frame of the SUV reduces the mass of the frame by 11.7% when the rigid strength meets the design requirements, which achieves the purpose of light weight.