Journal of the Korea Academia-Industrial cooperation Society (한국산학기술학회논문지)

The Korea Academia-Industrial cooperation Society (한국산학기술학회)
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Analysis and Suppression Plan for Structure and Flow induced Noise in a Small Refrigeration System

소형 냉동시스템 소음의 구조와 유동 연성 분석과 저감 방안

  • Kim, Soo-Hyun (Department of Mechanical Design, Yuhan University) ;
  • Lee, Dong-Yeon (School of Mechanical Engineering, Yeungnam University) ;
  • Lee, Moo-Yeon (Department of Mechanical Engineering, Korea University)
  • Received : 2010.10.12
  • Accepted : 2010.11.19
  • Published : 2010.11.30
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Abstract

This paper addresses how to reduce or redesign uncomfortable sound from small refrigerator by modifying some structures in mechanical components or operating conditions. After performing vibration analysis on each component and then sound analysis are carried out. From stepped designed experiments, we could acquire some important results that structure and flow induced vibration assumed to be a major cause to noise level and frequencies. Modifying some mechanical structure and operating conditions, uncomfortable starting noise and beating sound are suppressed. Machinery room located in refrigerator's backside is investigated for vibration and noise suppression, and some ideas for more improvement are suggested.

본 논문의 목적은 가정용 냉동시스템에서 유발되는 소음 및 진동을 소음 및 진동 분석 방법에 의거하여 파악하여 궁극적으로 소음제어를 통하여 저감하는 것이며 소음저감 방안을 제공하는데 있다. 이를 위하여 다양한 냉동시스템의 작동 조건에서 구조 소음 및 유동 소음을 측정하였으며, 압축기 및 주요 구성부품들에 대한 소음 제어를 통하여 10%의 소음을 저감하였다.

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References

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