Traceable Calibration Method for Online Measurement System of Train Wheelset Profile Based on Neural Network

Enquan FANG; Jie QIN; Lili GENG

doi:10.13890/j.issn.1000-128x.2019.04.029

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Traceable Calibration Method for Online Measurement System of Train Wheelset Profile Based on Neural Network

更新时间：2021-12-13

- Traceable Calibration Method for Online Measurement System of Train Wheelset Profile Based on Neural Network
- Electric Drive for Locomotives Issue 4, Pages: 136-140,149(2019)
- 作者机构：
  
  1.广州地铁集团有限公司，广东　广州　510302
  2.广州市奥特创通测控技术有限公司，广东　广州　510020
- 作者简介：
- 基金信息：
- DOI：10.13890/j.issn.1000-128x.2019.04.029
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Enquan FANG, Jie QIN, Lili GENG. Traceable Calibration Method for Online Measurement System of Train Wheelset Profile Based on Neural Network. [J]. Electric Drive for Locomotives (4):136-140,149(2019)
DOI：

Enquan FANG, Jie QIN, Lili GENG. Traceable Calibration Method for Online Measurement System of Train Wheelset Profile Based on Neural Network. [J]. Electric Drive for Locomotives (4):136-140,149(2019) DOI： 10.13890/j.issn.1000-128x.2019.04.029.

摘要

列车轮对在线检测系统作为国内轨道交通运维领域的基础装备之一，主要用于检测列车走行部运行过程中的状态，包括轮对尺寸、踏面擦伤和轴温。其中轮对尺寸在线检测由于具有一定的技术难度，并且轮对尺寸与轮轨动力学关联密切，因此越来越受到重视。文章以工程实例分析了轮对尺寸在线检测系统的溯源校准方法和保障其长期稳定运行的核心难题，介绍了基于神经网络方法的参数跟踪校正关键步骤，并提出一种在轮对尺寸在线测量中改善轮对径向跳动、轴向位移对测量结果影响的误差补偿方法及应用效果。

Abstract

As one of the basic equipment for rail transit operation and maintenance in China, the online measurement system of train wheelset mainly measures the running state of train running parts, including wheelset profile, tread abrasion and axle temperature.The online measurement system of wheelset profile had been paid more and more attention because of its technical difficulty and its close relationship with wheel-rail dynamics. This paper analyzed the method of traceability calibration and the key problem of ensuring the long-term stability of the online measurement system of wheelset profile from an engineering example, introduced the key steps of parameter tracking and calibration based on neural network, and expounded the error compensation method and application effects of radial runout and axial displacement in the online measurement system of wheelset profile.

关键词

轮对尺寸在线检测神经网络参数校正轴向位移径向跳动

Keywords

wheelset profileonline measurementneural networkparameter calibrationaxial displacementradial runout

references

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