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1.四川大学 机械工程学院,四川 成都 610065
2.中国铁路兰州局集团有限公司 嘉峪关工务段,甘肃 嘉峪关;735103
伍剑波(1986—),男,教授,博士研究生导师,研究方向为结构健康监测;E-mail: wujianbo@scu.edu.cn
纸质出版日期:2023-11-10,
收稿日期:2023-07-19,
修回日期:2023-09-07,
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颜荣, 伍剑波, 王杰, 等. 基于旋转激光传感的多轨纵向位移在线监测方法[J]. 机车电传动, 2023(6): 56-62.
YAN Rong, WU Jianbo, WANG Jie, et al. Online monitoring method for longitudinal displacement of multiple rails based on rotary laser sensing[J]. Electric drive for locomotives,2023(6): 56-62.
颜荣, 伍剑波, 王杰, 等. 基于旋转激光传感的多轨纵向位移在线监测方法[J]. 机车电传动, 2023(6): 56-62. DOI: 10.13890/j.issn.1000-128X.2023.06.007.
YAN Rong, WU Jianbo, WANG Jie, et al. Online monitoring method for longitudinal displacement of multiple rails based on rotary laser sensing[J]. Electric drive for locomotives,2023(6): 56-62. DOI: 10.13890/j.issn.1000-128X.2023.06.007.
钢轨纵向位移变化引起的断轨和胀轨会严重影响列车行驶安全。针对钢轨位移检测高精度、非接触和多轨测量的需求,文章提出一种基于旋转激光位移传感的多轨纵向位移在线监测方法,利用固定在钢轨上的角度标板将钢轨纵向位移转换为标板横向位移,然后利用旋转激光传感器同时采集多根钢轨标板横向位移,在此基础上提出基于滑动窗口阈值的凹槽特征识别方法,实现标板横向位移的测量准确性与稳定性。最后,将开发的钢轨位移监测系统部署在甘肃省嘉峪关市兰新线上行K730+000处进行长期测试。试验结果表明,新方法可实现多轨纵向位移的长期稳定在线监测与预警。
Rail breakage and expansion resulting from changes in longitudinal displacement of the steel rail pose a significant threat to train safety. To address the need for high-precision
non-contact and multi-rail displacement detection
an online monitoring method for multi-rail longitudinal displacement based on rotary laser sensing was proposed in this paper. Angular gauge plates fixed on rails were used to convert the longitudinal displacement of rails into lateral displacement of gauge plates
and the lateral displacement of rail gauge plates were then captured by the rotary laser sensor. On this basis
a groove feature recognition method utilizing a sliding window threshold was proposed to ensure accurate and stable measurement of the lateral displacement of gauge plates. Finally
the developed rail displacement monitoring system was deployed for long-term testing at K730+000 on the Lanzhou-Urumqi railway in Jiayuguan city
Gansu province. The test results show that the proposed method could ensure long-term and reliable online monitoring and early warning of longitudinal displacement for multiple rails.
多轨纵向位移在线监测激光传感标板特征识别高速铁路
multi-rail longitudinal displacementonline monitoringlaser sensinggauge plate feature recognitionhigh-speed railway
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