Study of Magnetostrictive Guided Wave Detection of Defects in Steel Strip for Elevator Traction

2019 4th International Conference on Measurement, Information and Control (ICMIC) Pub Date : 2019-08-01 DOI:10.1109/ICMIC48233.2019.9068594

W. Gao, Donglai Zhang, Enchao Zhang, Xiaolan Yan

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引用次数: 1

Abstract

The traction technology used for elevators in the current market has gradually changed from wire rope-type to steel strip technology. The traditional nondestructive testing of elevator wire ropes mainly involves manual observation. The steel strip is composed of both rubber and multiple wire ropes. Therefore, manual observation can only detect wear of the rubber surface or wire leakage and cannot detect internal defects in the wire ropes. The wire ropes in the steel strip are thus generally electrified to determine whether or not any of these wire ropes have broken. This approach cannot detect whether the wire ropes contain small defects. In this paper, different modes are designed for magnetostrictive guided wave sensors according to the structural characteristics of elevator steel strips. The different sensor modes are determined by comparing the detection effects of the various sensors. Finally, the magnetostrictive guided wave sensors are used to detect defects in the steel strip. The experiments show that the sensor designed in this paper can detect defects within the steel strip effectively.

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磁致伸缩导波检测电梯牵引钢带缺陷的研究

目前市场上用于电梯的曳引技术已逐步由钢丝绳式向钢带式转变。传统的电梯钢丝绳无损检测主要是人工观察。钢带由橡胶和多根钢丝绳组成。因此，人工观察只能检测橡胶表面磨损或漏丝，无法检测钢丝绳内部缺陷。因此，通常对钢带中的钢丝绳进行通电，以确定这些钢丝绳是否有任何断裂。这种方法无法检测钢丝绳是否含有细小缺陷。本文根据电梯钢带的结构特点，设计了不同的磁致伸缩导波传感器模式。通过比较各种传感器的检测效果，确定不同的传感器模式。最后，利用磁致伸缩导波传感器对钢带缺陷进行检测。实验表明，所设计的传感器能够有效地检测出钢带内部的缺陷。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2019 4th International Conference on Measurement, Information and Control (ICMIC)

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