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Vibration intensity (VI) method is used to reduce sound source generated from air-conditioning rotary compressor. Generally VI method is a good tool to find a sound source through vibration power flow. In this paper, the vibrations are measured by using the 3 uni-axial accelerometer from both the shells of the normal compressor and the fault compressor. The VI method successfully found out the sound source position on the surface of the compressor. In addition, the main noise (3kHz ~ 6.3kHz) was deminished by applying the newly designed compressor inner part which is related to the orginal noise source. Key Words : Vibration Intensity(VI), Rotary compressor, Visualization 1.      ()     ()   .             ,       ,  ,        ,     ,     . (rotary compressor)   (noise source)   (vibration source),      ,       .     , ,      ,           .           .                    [1].           [2]          [3].    1970 Noiseux    , “

Vibration Intensity Method to Detect Vibration Source of Rotary Compressor