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基于轨道边轮横向运动检测的同轴轮直径差异识别方法的研究
Xinyu Peng1, Jing Zeng1, Qunsheng Wang1
1Traction Power State Key Laboratory, Southwest Jiaotong University, Chengdu 610031, China.
Sensors (Basel, Switzerland)
|July 14, 2023
概括
在线监测车轮同轴轮直径差异在货车中对于安全至关重要. 使用轨道系统检测车轮架横向位移可以准确地识别这种故障,提高铁路车辆的稳定性和舒适性.
科学领域:
- 铁路工程 铁路工程是指铁路工程.
- 车辆动力学 车辆动力学
- 状态监控 状态监控
背景情况:
- 车轮同轴轮直径差异是一个常见的铁路车辆故障.
- 这种故障会降低车辆的稳定性,舒适性和安全性,增加脱轨风险.
- 需要在线监控来检测货车中的这个故障.
研究的目的:
- 开发一个在线监测方法,用于轮同轴轮直径差异.
- 分析车轮组同轴轮直径差异和轨道横移之间的关系.
- 建立一种精确的方法来识别使用轨道检测的车轮组同轴轮直径差异.
主要方法:
- 建立了一个车辆-轨道合器动态模型.
- 分析了轨道横向位移对轮同轴轮直径差异的反应.
- 研究了车辆速度和不平衡负载的影响.
- 开发了轮同轴轮直径差异和轮横移之间的映射关系.
- 通过轨道监控系统测试验证了该方法.
主要成果:
- 车轮的同轴轮直径差异导致车辆的运行偏差,并增加了车轮的侧向偏移.
- 侧向位移检测有效地反映了轮同轴轮直径差异的存在.
- 侧向位移显示了二次增长与直线上的直径差异,独立于速度.
- 与直径差异相比,车辆不平衡负载的影响很小.
结论:
- 车轮架横移的轨道检测可以准确地识别车轮架同轴轮径差异.
- 建立的映射关系使得这种故障能够在线精确监测.
- 这种方法提高了铁路车辆的安全性和运行稳定性.
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