한국소음진동공학회:학술대회논문집 (Proceedings of the Korean Society for Noise and Vibration Engineering Conference)
- 한국소음진동공학회 2011년도 추계학술대회 논문집
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- Pages.513-518
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- 2011
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- 1598-2548(pISSN)
여객선 객실소음과 장비 받침대 임피던스에 관한 실험적 연구
An Experimental Study on the Impedance of the Machinery Foundation and the Cabin Noise in Cruise Ship
- 발행 : 2011.10.27
초록
In cruise ships, it is inevitable to arrange the cabins near by the noisy areas, such as ventilation fan, HVAC machinery and funnel casing etc. The noise is propagated to the cabins by way of mount, foundation and deck. The transmitted noise to cabin is affected by mount and foundation structure. It is well-known that most of the structure-borne noise can be reduced by the flexible mount. However, when the foundation of machinery is designed inappropriately, it can make noise problems in cabins. In this paper, the effect of foundation on noise reduction is studied through the numerical analysis and mock up test. The dynamic performance of foundation is investigated from the viewpoint of the impedance and noise reduction in cabin.