エレベータロープ振れの計算手法と共振時の応答倍率評価

抄録

Several modelings of the elevator rope sway have been proposed by elevator makers. However, the modelings rely on elevator makers’ specific information. Therefore a generalized rope sway model has been required especially for the seismic operation against long-period ground motions or the strong wind operation. In this paper, a difference equation against the wave propagation equation of the string vibration is applied for the resonance evaluation of the elevator suspension rope. By the simulation results, it is concluded that the resonance behavior is not linear but affected by the car vertical motion induced by the rope sway. As the resonance behavior of the rope sway is influenced by several physical parameters, the effect of the rope length is evaluated as a first step.