论文部分内容阅读
采用Ansys软件对地铁高频辅助变流器柜体进行模态分析,可知辅助变流器柜体第一阶振动频率对应的振型为盖板法向振动。为增强盖板的刚度,以提高盖板第一阶振动频率为目标,在OptiStruct软件中对其进行形貌优化。同时,为减轻吊耳重量,对吊耳进行了拓扑优化。优化结果表明:辅助变流器柜体的第一阶振动频率提高32.0%,吊耳减重21.0%,优化效果较为明显。
Ansys software is used to analyze the modal of the high-frequency auxiliary converter cabinet in the subway. It can be seen that the vibration mode corresponding to the first-order vibration frequency of the auxiliary converter cabinet is the normal vibration of the cover plate. In order to enhance the rigidity of the cover, the top-level vibration frequency of the cover was optimized and optimized by OptiStruct software. At the same time, in order to reduce the lug weight, lifting lugs are topologically optimized. The optimization results show that the first order vibration frequency of the auxiliary converter cabinet is increased by 32.0% and the lifting ear weight is 21.0%, the optimization effect is more obvious.