Vibration Analysis of Elevator Rope (2nd Report, Forced Vibration of Rope with Damping)
Vibration Analysis of Elevator Rope (2nd Report, Forced Vibration of Rope with Damping)
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DOI：
10.1299/jsdd.2.540
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发表时间：
2006
期刊：
影响因子：
--
通讯作者：
H. Kimura;Hiroaki Ito;T. Nakagawa
中科院分区：
文献类型：
--
作者：
H. Kimura;Hiroaki Ito;T. Nakagawa
高层建筑电梯钢丝绳是利用风力引起建筑物的位移而强制励磁的。假设绳索张力和运动速度恒定，且绳索阻尼系数较小，给出了随长度变化且具有线性阻尼的绳索受迫振动的近似解。可分配给反射波的虚拟波源用于获得近似解。还对绳索振动进行了有限差分分析，以验证该近似解的有效性。有限差分分析的计算结果与近似解的计算结果吻合较好。定量地明确了移动速度和阻尼系数对绳索最大挠度的影响。
Elevator rope for high-rise building is excited forcibly by the displacements of the building induced by wind forces. The approximate solution of forced vibration of a rope with time-varying length and having a linear damping is presented, on the assumption that the rope tension and the moving velocity is constant, and damping coefficient of the rope is small. Virtual sources of waves which can be assigned to reflecting waves are used for obtaining the approximate solution. Finite difference analyses of the rope vibration are also performed to verify the validity of this approximate solution. The calculated results of finite difference analyses are in fairly good agreement with the calculated results of the approximate solution. The effect of moving velocity and damping factor on the maximum rope deflection are quantitatively made clear.