针对磁浮列车走行机构耐撞性的要求,设定了3种碰撞场景,对其力学响应进行研究分析,并利用ANSYS软件运用APDL语言建立参数化的走行机构模型。对模型在3种场景下的冲击工况进行有限元分析。在此基础上,以各工况下的最大应力为状态变量,以结构板厚为设计变量,以机构质量为优化目标,采用了一阶方法作为优化方法,对走行机构进行轻量化优化。优化后,在满足结构设计要求的前提下,结构质量减轻了9.07%,得到了良好的优化结果。 According to the requirement of the crashworthiness of maglev traveling body, three kinds of collision scenes were set up, the mechanical response was studied and analyzed, and the parameterized walk mechanism model was established by using APDL language with ANSYS software. The finite element analysis of the impact mode of the model under the three scenarios is carried out. Based on this, taking the maximum stress in each condition as the state variable and the structural plate thickness as the design variables, the first-order method is taken as the optimization objective to optimize the quality of the mechanism, and the weight of the traveling mechanism is optimized. After optimization, under the premise of meeting the structural design requirements, the quality of the structure is reduced by 9.07%, and a good optimization result is obtained.