Method of estimating the lateral vibration of an elevator rope from the vertical vibration of a compensating sheave
Method of estimating the lateral vibration of an elevator rope from the vertical vibration of a compensating sheave
复制标题
根据补偿滑轮的垂直振动估算电梯绳索横向振动的方法
DOI：
10.1080/13467581.2022.2086876
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发表时间：
2022
影响因子：
1.3
通讯作者：
Nguyen Xuan Thuan
中科院分区：
文献类型：
--
作者：
Miura Nanako;Matsuda Tomohiro;Higashi Yoshiyuki;Ono Hiroyuki;Nguyen Xuan Thuan
观察电梯井中的电梯绳索的振动是一项困难的任务。虽然已经开发了几种使用图像处理或激光位移计来观测位移，然后通过观测器或卡尔曼滤波器来估计振动的方法，但是由于电梯轿厢的运动和作为观测目标的绳索的细度，因此难以安装传感器。因此，在这项研究中，我们专注于一个滑轮称为补偿槽轮，不改变其横向位置的汽车和绳索移动。绳索的水平振动使补偿绳轮在垂直方向上振动。提出了一种利用弧长计算和短时快速傅里叶变换从垂直振动估计水平振动的方法。首先，补偿滑轮的垂直振动基于垂直振动的主导频率被分配到各种模式响应。模式分解的垂直振动，然后转换成水平模式响应使用弧长关系表达式。地震反应数据的分析证实，所提出的方法可以估计的第一，第二和第三水平模式的响应从垂直振动。
Observing the vibration of the elevator ropes in an elevator shaft is a difficult task. Although several methods of observing the displacement using image processing or laser displacement meters and then estimating the vibration through an observer or a Kalman filter have been developed, it is difficult to install sensors because of the movement of the elevator car and the thinness of the rope as an observation target. Therefore, in this study, we focus on a pulley called a compensating sheave that does not change its lateral position as the car and ropes move. The horizontal vibration of the ropes causes the compensating sheave to vibrate in the vertical direction. A method of estimating the horizontal vibration from this vertical vibration using arc length calculations and a short-time fast Fourier transform is proposed. First, the vertical vibration of the compensating sheave is distributed to the various mode responses based on the predominant frequency of the vertical vibration. The mode-decomposed vertical vibration is then converted into a horizontal mode response using an arc length relational expression. Analysis of seismic response data confirms that the proposed method can estimate the 1st, 2nd, and 3rd horizontal mode responses from the vertical vibration.