The Oil Damper for the Axial Vibration of Crank Shaft on Marine Diesel Engine

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  • 舶用ディーゼル機関のクランク軸系縦振動減衰装置について
  • ハクヨウ ディーゼル キカン ノ クランクジクケイ タテ シンドウ ゲンスイ ソウチ ニ ツイテ

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In recent years, the dimensions and output of marine diesel engine have remarkably increased, and the size and weight of its parts have gradually dereased in order to get larger cargo space. Then, the axial vibration of the crank shaft becomes important problem to study in connection to the strength of crank shaft and the influence to the hull vibration. Accordingly, various researches and investigations to this problem had been carried out in many organizations and various important results had been obtained concerening the method of analysis and the way to control the axial vibration. In this paper, we describe the results of our investigation, which was carried out as a part of research work of SR 100 in 1967, on the characteristics and effectiveness of a new oil-damper for axial vibration of crank shaft which we produced.

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