索道搬器の動吸振器による制振

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  • Vibration Control of a Gondola by Passive-Type Dynamic Absorbers.
  • サクドウ ハンキ ノ ドウキュウシンキ ニ ヨル セイシン

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The swing of a gondola lift is easily caused by wind and is very difficult to reduce. In this paper, several types of dynamic absorbers for a gondola are analyzed theoretically, and a general theory is formulated. The method of optimum tuning is obtained, and the index (equivalent mass ratio) which indicates the effect of the absorber is defined. When the dynamic absorber is located at the center of gravity of the main mass, the swing is not reduced at all. This is because the moment due to the spring of the absorber is canceled by the moment caused by the gravity which acts on the mass of the absorber. The absorber should be located as high as possible.

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