Low Noise Design of Air Conditioning Compressor Based on Experiment Modal Parameter Identification

摘要

In order to reduce the noise of household electrical products, in this paper, a certain kind of rotary compressor for the air conditioning is regarded as the study object. The method of experimental modal parameter identification base on the complex modal theories is brought forward to analyze the dynamic characteristic of the rotary compressor. The dynamic characteristic can be identified. In succession, the compressor shell and the liquid-tank shell could be designed so as to keep the compressor in lower noise based on the structural dynamic characteristic and the result of sound signal analysis in working condition. And the feasibility and efficient of the kind of design method aiming at lower noise are studied. The experiment indicates that the new structure has higher damping. The noise degree has been reduced so as to achieve the target of lower noise of the air conditioner.