マリンエンジニアリング
Online ISSN : 1884-3778
Print ISSN : 1346-1427
ISSN-L : 1346-1427
5翼プロペラ6シリンダ機関の失火時ねじり振動
齋藤 年正辻 誉志大野 智史
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2008 年 43 巻 6 号 p. 958-963

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The authors have studied the torsional vibration characteristics of a crankshaft system consisting of a six-cylinder engine for a large ship which has a five-bladed propeller in the case where one cylinder misfires. In such a case, the amplitude of torsional vibrations due to the sixth torsional harmonic reduces compared with that in case of a normal operation. However, the forth and fifth torsional harmonics increase; therefore, the amplitude of the torsional vibrations corresponding to these components also increases. In particular, the torsional vibration stress due to the forth torsional harmonic component increases; therefore, it is necessary to ensure that the allowable stresses on the shaft are not exceeded.

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© 社団法人 日本マリンエンジニアリング学会
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