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最近のプロペラ鳴音の特徴とその防止法の研究


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Title: 最近のプロペラ鳴音の特徴とその防止法の研究
Other Titles: Some Characteristics of Recent Propeller Singing and Its Preventive Measures
Authors: 川添, 強 / 中島, 徹 / 錦戸, 慎吾 / Leong, Lee Kim
Authors (alternative): Kawazoe, Tsuyoshi / Nakashima, Touru / Nishikido, Shingo / Leong, Lee Kim
Issue Date: Jan-1998
Citation: 長崎大学工学部研究報告 Vol.28(50) p.15-19, 1998
Abstract: So far a cause of propeller singing could be explained by the resonance between Karman vortex street from the trailing edge of 0.55R∿0.6R and the natural frequency of the blade. The revision of the trailing edge mentioned above by grinding could almost arrest the singing. However there are many cases where recent propeller singing cannot be extinguished by the usual measure. In this study, the characeristics of recent singing and its preventive measures are considered using FFT analysis of noise occured in some large ships. In consequence, we developed a new anti-singing design which leads to good results on some applied ships.
Keywords: Marine Propeller / Singing / Karman Vortex / Natural Frequency / Blade design
URI: http://hdl.handle.net/10069/5014
ISSN: 02860902
Type: Departmental Bulletin Paper
Appears in Collections:Volume 28, No. 50

Citable URI : http://hdl.handle.net/10069/5014

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