Whirling of an Automobile Propeller Shaft at Lower Speeds (2nd Report)

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  • 自動車プロペラ軸の低い速度で起るふれまわり(第2報)
  • ジドウシャ プロペラジク ノ ヒクイ ソクド デ オコル フレマワリ 2

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By a series of experiments on a model of an automobile propeller shaft, considerably strong whirling phenomena are found at 1/2, 1/4, 1/6, 1/8, …… of the ordinary critical speed. Calculations also show that the friction at the universal joints gives exciting forces of frequencies 2, 4, 6, 8, …… times as large as the rotating speed of the shaft, and therefore, it can be the cause of such vibrations.

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