Transactions of the Korean Society of Mechanical Engineers A (대한기계학회논문집A)

The Korean Society of Mechanical Engineers (대한기계학회)
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The Design of the Motor Bracket for Reduction of Structure- Borne Noise in Package Air-Conditioner

에어컨의 구조 소음 저감을 위한 실내기 모터 브라켓의 설계

  • 심현진 (한양대학교 자동차공학과) ;
  • 이성진 (한양대학교 자동차공학과) ;
  • 강태호 (위니아 만도 기술연구부) ;
  • 이정윤 (경기대학교 기계시스템디자인공학부) ;
  • 오재응 (한양대학교 기계공학부)
  • Published : 2006.02.01
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Abstract

As the economic power is improved and the customer's demand is hard to please, the noise and vibration is the most important yardstick that can determine the quality of the product. Especially, as the airconditioner's demand increase suddenly, the product of quality and the noise is becoming a decisive factor of determining whether purchase the product or not. Therefore, every manufactory is investing a lot of money and research to cut down the unpleasantness induced from noise and vibration. And they are emphasizing their product's difference by advertising a silence very actively. With these reason, the demand of a silent indoor air-conditioner is the essential research filed when the product is develop(:d. In this study, the noise and vibration is visualized in the space and frequency domain by using experimental methods such as operational deflection shape (ODS), modal testing and sound intensity. Also the location of noise source and its characteristic is analyzed in an acoustical point of view to reduce the structure borne noise that come from the fan motor, and the pertinent control method is suggested. Furthermore, the most suitable shape of the motor bracket is suggested by applying FEM and DOE (Design of experiments) in the noise and vibration point a view.

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References

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