【摘要】 分析了电控箱设计时应注意的问题,并结合这些影响因素,在设计过程中兼顾热设计、电磁兼容性设计和结构轻量化设计。运用UG软件建立了三维实体模型,给出了电控箱的总体结构解决方案。采用有限元分析软件MSC.PATRAN对电控箱进行了线性静力学分析和模态分析,根据有限元仿真结果,对相应的部件做了进一步的改进。结果显示结构应力远小于材料的屈服极限。结构的一阶固有频率是217.89Hz,满足总体提出的优于100Hz的要求,且有较大的刚度裕度。理论分析表明该设计方案是可行的。更多还原

【Abstract】 The key problems general in the process of development of electric control box were stated. The heat design, electromagnetic compatibility design and lightweight were given attention to the design of electric control box based on these problems. The 3D model of this box was established by mechanical design software-UG. At the same time, the scheme was introduced. Finite element analysis was realized by software MSC.PATRAN, including static analysis and modal analysis and some parts were mended based on the analysis results. The analytic results of mended structures show that the stresses were far less than the material of yield limit; besides, one mode of natural frequency is 217.89Hz which meet the requirement of up to 100Hz.The space of stiffness is large. The theoretic analyses show that this project of structure design is feasible.更多还原