The invention discloses a train motion parameter identification method based on strain monitoring data of a high-speed railway bridge. The train motion parameter identification method comprises the following steps: firstly, denoising and trending strain monitoring data by using an EMD (Empirical Mode Decomposition) method; obtaining a point passing signal data sequence by using a point passing signal interception method based on a rolling maximum value; a significant peak-valley value identification method based on zero-crossing and bipartite clustering is used to complete peak-valley value identification of a point-crossing signal; train marshalling identification is completed according to the relation between the point passing signal peak and valley value information and the train marshalling number; adopting bipartite clustering to complete train running direction identification according to the relative relation of the peak values of the passing point signals; according to the corresponding relation between the occurrence time of the key peak valley value in the passing point signal and the time when the key part of the train passes through the sensor, the running speed recognition is completed. According to the method, the train-induced strain response and train motion parameters of each single bridge crossing event can be identified from continuous strain monitoring data, and the load characteristics of the train running on the high-speed railway bridge can be identified based on the train-induced strain response and the train motion parameters.

    本发明公开一种基于高铁桥梁应变监测数据的列车运动参数识别方法,先用EMD方法对应变监测数据进行去噪去趋势;用基于滚动最大值的过点信号截取方法得到过点信号数据序列;再用基于过零性与二分聚类的显著峰谷值识别方法完成过点信号的峰谷值识别;根据过点信号峰谷值信息与列车编组数的关系完成列车编组识别;根据过点信号峰值相对关系采用二分聚类完成列车行车方向识别;根据过点信号中的关键峰谷值出现时刻与列车关键部位通过传感器时刻的对应关系,完成行车速度识别。本发明能从连续不断的应变监测数据中识别出每个单次过桥事件的车致应变响应以及列车运动参数,基于此可识别高铁桥梁上运行列车的荷载特征。


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    Title :

    Train motion parameter identification method based on high-speed railway bridge strain monitoring data


    Additional title:

    一种基于高铁桥梁应变监测数据的列车运动参数识别方法


    Contributors:
    DAN DANHUI (author) / WANG WENZHAO (author)

    Publication date :

    2024-10-01


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B61L Leiten des Eisenbahnverkehrs , GUIDING RAILWAY TRAFFIC / G06F ELECTRIC DIGITAL DATA PROCESSING , Elektrische digitale Datenverarbeitung



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