摘要在列车行驶过程中，列车的车轮踏面可能会因各种原因造成车轮的局部擦伤，当车轮运行到擦伤部分时，车轮对钢轨产生的冲击力是影响列车平稳性和安全性的重要因素，所以列车轨道振动监测具有非常重要的意义。本文是在参考了前人研究的基础上，使用了一种基于振动加速度的车轮故障监测系统，并且对采集的振动信号进行了分析和研究。87457

本文首先介绍了列车轨道振动监测系统的发展状况和现实意义，通过查阅资料得到国内外监测系统的研究成果，归纳得出研究现状。

然后介绍了列车车轮出现故障的原因和种类，根据列车轨道振动监测系统的要求给出了监测系统的总体设计，同时也交代了振动信号的采集方案，并对列车轨道振动监测系统进行了硬件选型。

其次介绍了列车轨道振动监测系统的软件设计部分，本次设计选择的开发语言是C++，开发环境是VS2010和Qt5。5，该部分交代了列车轨道振动监测系统软件总体设计，并对各个功能模块进行介绍，解释了功能模块的设计思想。

最后通过搭建实验平台，采集振动信号，并对信号进行时域和频域的分析，得出相关结论。

毕业论文关键词  城市轨道交通列车，列车轨道振动监测系统，Matlab分析，信号处理

毕业设计说明书外文摘要

Title         Design of train track vibration monitoring system   

Abstract In the process of moving train, the train wheel tread may be due to various causes localized abrasion wheel,When the wheels run to abrasion part, the rail wheel produce impact is an important factor affecting train stability and security。So train track vibration monitoring has a very important significance。This article is in reference to the basis of previous studies on the use of a wheel failure monitoring system based on vibration acceleration, and vibration signal acquisition is analyzed and studied。

   The paper introduces the development of train track vibration monitoring system and practical significance, through access to information obtained research results monitoring system, research results summarized the current situation。

   Then the paper introduces the train wheel failure causes and types, according to the requirements of the train track vibration monitoring system gives the overall design of the monitoring system, but also explained the vibration signal acquisition program, and the train track vibration monitoring system of hardware options type。

   Secondly, it introduces the software design part of the train track vibration monitoring system。The design development language of choice is C++，the development environment is VS2010 and Qt5。5 , this part account of the train track vibration monitoring system software design, and various functional modules are introduced, explaining the function module design ideas。

  Finally, experimental platform, vibration signal acquisition, analysis and time domain and frequency domain signal, draw relevant conclusions。

Keywords   Metro vehicle  Train track vibration monitoring system   Matlab analysis Signal Processing

目   次

1  引言 1源-于Y优+尔-论.文:网www.youerw.com 原文+QQ7520^18766

1。1  研究的背景和意义 1

1。2  国内外研究现状 1

1。3  本文主要研究内容 2

2  列车轨道振动监测系统硬件设计 4