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Proceedings Paper

Development of GJ-4G track inspection car
Author(s): Shengwei Ren; Shiping Gu; Guiyang Xu; Zhan Gao; Qibo Feng
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Paper Abstract

Rail track geometric parameters, such as gage, level, twist, longitudinal irregularity, and alignment irregularity, etc., have much influence on the operation safety of train vehicles. GJ-4 track inspection car is a large scale dynamic measurement equipment for measuring track geometric parameters precisely and efficiently. It is useful to find track defects, guide track maintenance, and eliminate potential safety problems of track. However the device of measuring gage and alignment irregularity of this track inspection car is installed on a hanging beam, which is not suitable for rapid inspection and has higher failure rate. Hence this sub-system is replaced by the laser-camera method. The rebuild car is named GJ-4G. It greatly eliminates the measurement errors caused by the existing subsystem and increases the measuring stability. The feasibility of this track inspection car has been proven by the practical experiments carried out by Beijing Railway Administration.

Paper Details

Date Published: 28 December 2010
PDF: 6 pages
Proc. SPIE 7544, Sixth International Symposium on Precision Engineering Measurements and Instrumentation, 75440Q (28 December 2010); doi: 10.1117/12.885888
Show Author Affiliations
Shengwei Ren, Beijing Jiaotong Univ. (China)
Ministry of China Railway (China)
Shiping Gu, Ministry of China Railway (China)
Guiyang Xu, Ministry of China Railway (China)
Zhan Gao, Beijing Jiaotong Univ. (China)
Qibo Feng, Beijing Jiaotong Univ. (China)

Published in SPIE Proceedings Vol. 7544:
Sixth International Symposium on Precision Engineering Measurements and Instrumentation
Jiubin Tan; Xianfang Wen, Editor(s)

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