A Study on Development of Remote Crane Wire Rope Flaws Detection Systems

Min, Jeong-Tak; Lee, Jin-Woo; Lee, Kwon-Soon

Journal of Navigation and Port Research 2003;27(1):97-102.
Published online March 31, 2003.

원격 크레인 와이어 로프 결함 탐지 시스템 개발에 관한 연구

민정탁, 이진우, 이권순

A Study on Development of Remote Crane Wire Rope Flaws Detection Systems

Jeong-Tak Min, Jin-Woo Lee, Kwon-Soon Lee

Abstract

Wire ropes are used in a myriad of various industrial applications such as elevator, mine hoist, construction machinery, lift, and suspension bridge. Especially, the wire rope of crane is important component to container transfer. If it happens wire rope failures during the operation, it may lead to safety accident, economic loss by productivity decline and so on. To solve this problem, we developed remote wire rope fault detecting system, and this system is consisted of 3 parts that portable fault detecting part, signal processing part and remote monitoring part. All detected signal has external noise or disturbance according to circumstances. So, we applied to discrete wavelet transform to extract a signal from noisy data. It is verified that the detecting system by de-noising has good efficiency for inspecting faults of wire ropes in service. As a result, by developing this system, container terminal could reduce expense because of extension of wire ropes exchange period and could competitive power. Also, this system is possible to apply in several fields such as elevator, lift and so on.

Key Words: Wire Rope;Hall Sensor;MFL;NDT;Discrete Wavelet Transform;Wireless Communication;Remote Control