Proceedings of the Korean Society for Noise and Vibration Engineering Conference (한국소음진동공학회:학술대회논문집)
- 2003.11a
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- Pages.333-337
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- 2003
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- 1598-2548(pISSN)
Placing Constrained Layer Damping Patches Using Reactive Shearing Structural Intensity in Order to Reduce the Radiated Sound Power of a Air-Conditioner Outdoor Unit
반동 전단 구조 인텐서티 측정에 의한 제진재 적용과 그에 따른 에어컨 실외기 구조 방사 소음 저감
Abstract
The use of reactive shearing structural intensity to place small patches of constrained layer damping material in order to achieve the largest reduction in the radiated sound power of Air-conditioner outdoor unit is described. The normal surface velocity of each panel was measured using a laser doppler vibrometer. Experimental results indicated that patches of constrained layer damping material placed over areas of high reactive structural intensity reduced the radiated sound power significantly more than patches of the same area placed over areas of low reactive structural intensity
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