关键词: 振动与波, 空调压缩机, 噪声, 有限元, 模态分析

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