Journal of Mechanical Science and Technology

The Korean Society of Mechanical Engineers (대한기계학회)
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Transmission Path Analysis of Noise and Vibration in a Rotary Compressor by Statistical Energy Analysis

  • Hwang, Seon-Woong (Digital Appliance Research Lab., LG Electronics) ;
  • Jeong, Weui-Bong (Departmant of Mechanical Engineering, Pusan National University) ;
  • Yoo, Wan-Suk (Departmant of Mechanical Engineering, Pusan National University) ;
  • Kim, Kyu-Hwan (Departmant of Mechanical Engineering, Pusan National University)
  • Published : 2004.11.01
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Abstract

The hermetic rotary compressor is one of the most important components of an air conditioning system since it has a great effect on both the performance and the noise and vibration of the system. Noise and vibration occurs due to gas pulsation during the compression process and to unbalanced dynamic force. In order to reduce noise and vibration, it is necessary to identify their sources and transmission path and effectively control them. Many approaches have been tried in order to identify the noise transmission path of a compressor. However, identification has proven to be difficult since the characteristics of compressor noise are complicated due to the interaction of the compressor parts and gas pulsation. In this study, the statistical energy analysis has been used to trace the energy flow in the compressor and to identify the transmission paths from the noise source to the exterior sound field.

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