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http://dx.doi.org/10.5916/jkosme.2014.38.9.1170

A study on the improvement of cavitation inception speed for controllable pitch propeller in the actual warship  

Lim, Yong-Su (2nd Busan Team, Defense Agency for Technology and Quality)
Jo, Kwan-Jun (2nd Busan Team, Defense Agency for Technology and Quality)
Yeun, Je-Gil (Defense Acquisition Program Administration)
Publication Information
Journal of Advanced Marine Engineering and Technology / v.38, no.9, 2014 , pp. 1170-1174 More about this Journal
Abstract
If cavitation occurs in propeller, it generates vibration and noise accordingly which results in low efficiency of propeller. It's 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. It's 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.
Keywords
Controllable pitch propeller; Cavitation inception speed; Bolt cavitation; Vibration and noise;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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