Abstract:

The drum of a washing machine rotates at a high speed during dehydration work, while the clothes in the drum rotate together with the drum, yielding pressure on the drum wall which causes the drum to deform. With software Pro-E and ANSYS the finite element model of a washing machine drum with its support is established. Dynamic analysis of the drum structure in the case of dehydration work is carried out. The natural frequencies and vibration modes are obtained. The critical positions and the critical rotating speed are found. Some improvement suggestions for the washing machine drums are esented.

Key words: vibration and wave, drum washing machine, dynamic analysis, modal analysis, critical rotating speed

摘要：

针对某型号滚筒洗衣机的滚筒结构特点，运用Pro/E软件和有限元软件ANSYS对洗衣机在高速脱水工况下进行结构动力分析，并进行离心载荷作用下的模态分析，得到受力和变形情况以及固有频率和振型。根据分析结果，得出危险位置和临界转速，并对滚筒组件提出了改进建议。

关键词: 振动与波, 滚筒洗衣机, 动力分析, 模态分析, 临界转速