Proceedings of the Korean Society for Noise and Vibration Engineering Conference (한국소음진동공학회:학술대회논문집)
- 2013.10a
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- Pages.738-743
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- 2013
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- 1598-2548(pISSN)
A Study on the method for the extraction of the radiation efficiency and radiation direction coefficient
방사효율과 방사방향 계수 산출기법 연구
- Jung, Woo-Jin (Agency for Defense Development) ;
- Kang, Myung-hwan (Agency for Defense Development) ;
- Lee, Jong-Ju (Agency for Defense Development) ;
- Jeon, Jae-Jin (Agency for Defense Development)
- Published : 2013.10.27
Abstract
Underwater radiated noise is the key in acoustic stealth performance of modern naval ships. The underwater radiated noise predicted by the hull vibration with radiation efficiency cannot give the information of radiation pattern which is essential to the analysis of detection possibility by enemy and to improve the operational performance of the naval ship. The radiation pattern of underwater radiated noise is able to be obtained with radiation efficiency and radiation direction coefficient. In this paper, a new method to extraction the radiation efficiency and radiation direction coefficient is suggested and proved with the simulation and experiment by using cylindrical shell of 70cm diameter in air.
Keywords