Evaluation of onboard sensors for track geometry monitoring against conventional track recording measurements

被引：0
|
作者：
Zhang, Hengcheng [1 ]
Chin, Zhan Yie [1 ]
Borghesani, Pietro [1 ]
Pitt, James [2 ]
Cholette, Michael E. [3 ]
机构：
[1] School of Mechanical and Manufacturing Engineering, UNSW Sydney, Australia
[2] Queensland Rail Limited, Australia
[3] Science and Engineering Faculty, Queensland University of Technology, Brisbane,QLD, Australia
来源：
Measurement: Journal of the International Measurement Confederation | 2024年 / 229卷
基金：
澳大利亚研究理事会;
关键词：
Accelerometers - Bogies (railroad rolling stock) - Data acquisition - Geographical distribution - MEMS;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The main objective of this paper is to assess the estimation of track condition parameters using onboard micro-electro-mechanical-system (MEMS) accelerometers. A prototype of an onboard data acquisition system was designed and installed on a track recording car (TRC) and a measurement campaign was conducted on an extensive portion of the Brisbane Suburban railway network. Comparison of the accelerometer-based results vs TRC recordings have shown that accelerometers installed on the bogie are the best compromise between proximity to the source and insensitivity to impulsive noise. It was found that two vertical bogie accelerometers (left and right) provide a good quantitative estimate of vertical alignment and that strong correlations with TRC measurements exist for lateral MEMS accelerometer measurements (horizontal alignment). These findings suggest that two bogie MEMS accelerometers with vertical and lateral measurement axes are effective in estimating geographical distributions of vertical/horizontal alignment. © 2024 The Authors
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