208 スキーリフトの動吸振器による制振(OS2-3 基調講演)(OS2 振動の解析と制御)

抄録

Swing of ropeway carriers such as gondola lifts is easily caused by wind, and usually a ropeway cannot operate if the wind velocity exceeds about 15m/s. In 1993, Matsuhisa showed that the swing of carrier can be reduced by a dynamic absorber if it is located far above or below from the center of oscillation. Based on this finding, a dynamic absorber composed of a moving mass on an arc-shaped track was designed for practical use, and it was installed in chairlift-type carriers and gondola type carriers in snow skiing sites Teine Highland in Hokkaido in 1995 for the first time in the world. It has been shown that a dynamic absorber with the weight of one tenth of the carrier can reduce the swing to half. It also can be applied to ships and rope suspended bridge and others.