Abstract: The Dynamic analysis models of the airconditioner outdoor unit and the compressor refrigeration system are established by means of the finite element method (FEM). The modal analysis is carried out by ANSYS code. The impact of the piping on the compressors structural vibration using the rubber pads with different hardness is obtained. The natural frequency and vibration mode of the system are computed. Then the most suitable stiffness of the rubber pads can be used to reduce the compressors structural vibration. The vibration and noise of the pads with various stiffness are measured. The vibration velocity curves are plotted and the spectrum analysis is carried out. With the appropriate measures for forecasting the vibration and noise reduction, the design scheme may be more scientific, feasible and economic.

Key words: vibration and wave, compressor of airconditioner, noise, FEM, modal analysis

摘要： 用有限元法建立家用空调器室外机及压缩机制冷系统的动态分析模型，使用ANSYS软件做结构模态分析，求出使用不同刚度减振垫时配管对整个结构振动的影响，系统的固有频率和振型变化情况，得出最适合的橡胶垫刚度，使得压缩机结构振动减小。实验测量不同刚度减振垫对应的振动和噪声，绘制振动速度图，进行频谱分析，并通过采取合适的减振、降噪预测措施，使设计具有科学性、可行性和经济性。

关键词: 振动与波, 空调压缩机, 噪声, 有限元, 模态分析