한국소음진동공학회:학술대회논문집 (Proceedings of the Korean Society for Noise and Vibration Engineering Conference)
- 한국소음진동공학회 2014년도 추계학술대회 논문집
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- Pages.625-629
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- 2014
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- 1598-2548(pISSN)
저주파 수중 반향음 제어를 위한 타일형 프로젝터의 유한요소 해석
Finite Element Analysis of a Tile Projector for Control of Low-frequency Underwater Echoes
- 발행 : 2014.10.29
초록
In this paper, a tile projector for the active control of low-frequency underwater echoes is studied using finite element method. Compared to the existing underwater actuators used for echo reduction, the tile projector is better suited for covering a wide area such as the hull of a submarine. In order to actively match the acoustic impedance at the water-object interface, the projector is driven to radiate a pressure wave that is the inverted replica of the echo at the interface. Finite element simulations demonstrate significant echo reductions due to the active impedance matching by the tile projector.
키워드