Proceedings of the Korean Society for Noise and Vibration Engineering Conference (한국소음진동공학회:학술대회논문집)
- 2009.04a
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- Pages.518-523
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- 2009
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- 1598-2548(pISSN)
Reduction of Fire Main Pipe System's Vibration Using Back Flow Prevent Globe Valve
역류방지 글로브 밸브를 이용한 소화 주관계의 진동개선
- Published : 2009.04.23
Abstract
Main source of URN(Underwater Radiated Noise) which is related to the ship's survivability is divided into two groups. Cavitation is main source of URN when the speed of ship is upper than CIS(Cavitation Inception Speed). But when the speed of ship is lower than CIS, main source of URN is structure-borne noise on the hull which is originated from propulsion system, pump system or transmitted vibration of pipe system. In this paper, to reduce the vibration of discharge pipe and valve system, back flow prevent globe valve and new rubber mount are applied to the ship. As the result of applying new valve and mount, the vibration is reduced drastically.
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