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Electrical and Structural Design of Air-conditioning Fan Motor for Noise Reduction
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  • Electrical and Structural Design of Air-conditioning Fan Motor for Noise Reduction
  • Electrical and Structural Design of Air-conditioning Fan Motor for Noise Reduction
저자명
Han. Hyung-Suk,Mo. Jin-Yong,Kim. Chang-Hyun,Lee. Jae-Kwon,Jeong. Weui-Bong
간행물명
Journal of mechanical science and technology
권/호정보
2006년|20권 10호|pp.1653-1661 (9 pages)
발행정보
대한기계학회
파일정보
정기간행물|ENG|
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이 논문은 한국과학기술정보연구원과 논문 연계를 통해 무료로 제공되는 원문입니다.
서지반출

기타언어초록

AC induction motors have been widely used for fan motor of the air conditioner indoor unit. Noise of these AC induction motors is usually caused by the coupling effects of structural and electrical systems. The rotating torque and the noise from AC induction motor were discussed in this paper,. First, the modification of motor was carried out in order to reduce the unbalance magneto motive force between main and sub winding. Second, structural modification based on normal mode analysis and modal testing was carried out so that the fan motor does not have the natural frequencies near the 2f-line frequency. Numerical modifications through these two processes were verified by experiments, which showed that the sound pressure level at 2f-line frequency of the modified system became about 25dB less than that of conventional one.