실선관측에 의한 가변추진기의 캐비테이션 초생속도 향상에 관한 연구

다국어 초록 (Multilingual Abstract)

If cavitation occurs in propeller, it generates vibration and noise accordingly which results in low efficiency of propeller. Its important to increase cavitation inception speed(CIS) since the noise of cavitation increases significantly from the beginning of cavitation. This paper describes the result of actual observation and measurement onboard ship with controllable pitch propeller(CPP), so as to verify the first occurrence phenomenon of cavitation. The research suggests new type of controllable pitch propeller with improved CIS at the bolt as it started with bolt cavitation as result of observation. Its not found bolt cavitation on the CPP proposed in this paper, furthermore its CIS is increased approximately by 4.5 knots than the existing CPP. The result of the research can be used for development of low-noise CPP and improving performance of CIS.

참고문헌 (Reference)

1 이필호, "프로펠러 캐비테이션의 초기발생과 소음특성에 대한 실험연구" 대한조선학회 48 (48): 1-7, 2011

2 J. T. Lee, "Performance analysis method of propeller cavitation" 31 (31): 11-12, 1994

3 K. S. Kim, "Naval ship propeller cavitation occurrence characteristics and cavitation functional qualification test performed by MOERI LCT" 195-, 2013

4 C. S. Lee, "Marine propulsion and propeller design" Munundang 237-239, 2012

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6 Y. I. Jeon, "A study on the observation method of propeller cav-itation" 388-393, 2011

7 Y. S. Na, "A study on the improvement of cavitation inception speed for naval propellers" Chungnam National University 2005