Abstract
Recently, low noise for a compressor is as important as its mechanical efficiency. But it is difficult to accomplish low noise with other demands such as low cost, high speed, light weight, small size and high power. Therefore, it is necessary to take noise into account from the beginning of the design stage.
We have been developing the prediction procedure for a scroll compressor. It consists of the following three stages;
(1) Calculation of the excitation forces by the dynamic behaviro analysis of the rotating elements
(2) Determination of the frequency response of the structures
(3) Prediction of the radiated noise
There are many papers which describe the kinematic model of a scroll compressor but they do not refer to the noise radiation.
This paper describes the features of the procedure from the calculation of excitation forces with the dynamic behavior model of a scroll compressor to the prediction of the radiated noise. The application of the procedure to a middle cooling capacity scroll compressor is also discussed.
