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A Study on Propeller Noise Localizations in a Cavitation Tunnel Using MFP  

Park, Cheol-Soo (한국해양연구원 해양시스템안전연구소)
Cho, Yong-Jin (한국해양연구원 해양시스템안전연구소)
Seol, Han-Shin (한국해양연구원 해양시스템안전연구소)
Publication Information
The Journal of the Acoustical Society of Korea / v.26, no.5, 2007 , pp. 220-226 More about this Journal
Abstract
The two major objectives of acoustical measurements in a cavitation tunnel are measuring the noise levels generated by rotating propellers behind a hull and localizing possible noise sources in order to reduce noise levels. Propeller noise measurement experiments were performed in MOERI cavitation tunnel at December, 2006. In order to put the propeller into cavitating conditions, a wake-generating dummy body was devised. In addition, ten hydrophones are put inside a wing-shaped casing in order to minimize the unexpected flow induced self noise around hydrophone itself. After measuring both of the noises of the rotating propeller behind the dummy body and signals generated by a virtual source, respectively the data were matched field processed using the frequency incoherent Bartlett processor to localize noises on the propeller plane. In this paper, we presented the measured noise analysis and the localization results.
Keywords
MFP; Noise measurement; Noise localization; Propeller cavitation noise; Cavitation tunnel;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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1 김경섭, 성우제, 박철수, 김성일, '전달손실 비교를 통한 지음향학적 인자 역산과 정합장 처리,' 한국음향학회지, 24(6) 325-333, 2006   과학기술학회마을
2 박재은, 신기철, 김재수, '해양 정합장처리에서 매개변수 오정합과 바이어스,' 한국음향학회지, 24 (2) 87-96, 2005   과학기술학회마을
3 P. Abbot, S. Celuzza, R. Etter, 'The Acoustic Characteristics of the Naval Surface Warfare Center's Large Cavitation Channel(LCC),' Proc. ASME Symposium on Flow Noise Modeling, Measurement, and Control, 137-156, 1993
4 M. Strasberg, 'Propeller Cavitation after 35 Years of Study,' Proc. ASME Symposium on Noise and Fluid Engineering, Atlanta, 1977
5 안종우 외 '수중 소음 계측을 위한 KRISO 캐비테이션 터널의 음향학적 특성,' 대한조선학회 논문집, 37 (1) 111-117, 2000
6 J. Friesch, 'HYKAT, The New Cavitation Test Facility of Hamburg Ship Model Basin,' Proc. International Symposium on Hydro- and Aerodynamics in Marine Engineering, 1991
7 J. Bendat and A. Piersol, Random Data Analysis and Measurement Procedures (John Wiley & Sons, NY, 1986)
8 A. Tolstoy, Matched Field Processing for Underwater Acoustics (World Scientific, NJ, 1993)
9 U. Pollmann, 'Generalized Acoustic Similarity Parameters for the Broadband Cavitation Noise of a Five-Bladed Marine Propeller. Their Empirical Determination Based on the Analysis of Acoustic Model and Full-Scale Data,' Proc., CAV'95, 181-200, Deauville, 1995
10 김경섭, 이근화, 성우제, 김성일, 김영규, 'L-자형 선배열을 이용한 지음향학적 인자 역산 및 음원 위치 추정,' 한국음향학회지, 25 (7) 346-355, 2006   과학기술학회마을
11 Kim, W.J., Kim, D.H, and Van, S.H, 'Computational study on turbulent flows around modern tanker hull forms,' International Journal for Numerical Methods in Fluds, 38 (4) 377-406, 2002   DOI   ScienceOn
12 G. Bark and W. B. van Berlekom 'Experimental Investigation of Cavitation Dynamics and Cavitatioin Noise,' Proc. 12th Symposium on Naval Hydrodynamics, 470-493, Washington D.C., 1978
13 박정수, 김성일, 홍준석, 김의형, 김영규, '수온의 단주기 변동이 있는 동해에서의 정합장처리 실험: MAPLE 0310,' 한국음향학회지, 24 (6호) 317-324, 2006
14 A. V. Oppenheim and R. W. Schafer, Discrete-time signal processing (Prentic-Hall, NJ, 1989)