The invention discloses a DIC-based track fastener service state inspection trolley and a detection method thereof, the DIC-based track fastener service state inspection trolley comprises an inspection trolley capable of advancing along a track, a DIC system matched on the inspection trolley and a vibration exciter used for exciting the track, and a digital camera of the DIC system can detect speckle images on the surface of a track fastener part before and after the track is excited; according to the inspection trolley provided with the DIC system, the track is excited through the vibration exciter installed on the inspection trolley, so that a digital camera of the DIC system can collect speckle images on the surface of a track fastener part before and after the track is excited, and finally three-dimensional coordinates, displacement and strain data of the track fastener are obtained; the service state of the track fastener can be effectively detected; by utilizing the non-contact full-field measurement capability and high-precision detection capability of the DIC technology, the inspection trolley can effectively identify the stress state of the track fastener in the inspection process, so that the inspection trolley is more convenient and labor-saving, the accuracy and the efficiency of service state detection of the track fastener in the skylight time can be improved, the maintenance efficiency is improved, and the maintenance cost is reduced. The train operation safety is ensured.

    本发明公开一种基于DIC的轨道扣件服役状态巡检小车及其检测方法,其包括可沿着轨道行进的巡检小车,配套于巡检小车上的DIC系统,用于对轨道进行激励的激振器,所述DIC系统的数字相机可对轨道被激励前后轨道扣件部件表面的散斑图像,本发明的配有DIC系统的巡检小车,通过安装在巡检小车上的激振器对轨道进行激励,使得DIC系统的数字相机能够采集轨道被激励前后轨道扣件部件表面的散斑图像,最终获取轨道扣件的三维坐标、位移及应变数据,进而有效地检测轨道扣件的服役状态;本发明利用DIC技术的非接触式全场测量能力和高精度的检测能力,使得在巡检过程中巡检小车能有效识别轨道扣件的应力状态,不仅更为方便,节省人力,并且还可以提高在天窗时间内轨道扣件服役状态检测的准确性和效率,提高检修效率,确保列车运行安全。


    Access

    Download


    Export, share and cite



    Title :

    Track fastener service state inspection trolley based on DIC and detection method thereof


    Additional title:

    一种基于DIC的轨道扣件服役状态巡检小车及其检测方法


    Contributors:
    ZHAN GANGYI (author) / GUAN FENG (author) / XU CHUNSHAN (author) / HU CONG (author) / LIU LINYA (author) / TU HAO (author) / JIN ZHIGUO (author) / YANG DAOFENG (author) / LIU QUANMIN (author) / XU HU (author)

    Publication date :

    2024-09-27


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B61K Andere Hilfseinrichtungen für Eisenbahnen , OTHER AUXILIARY EQUIPMENT FOR RAILWAYS / B61D Einzelheiten oder Arten des Wagenaufbaus von Eisenbahnfahrzeugen , BODY DETAILS OR KINDS OF RAILWAY VEHICLES / G01B MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS , Messen der Länge, der Dicke oder ähnlicher linearer Abmessungen / G06T Bilddatenverarbeitung oder Bilddatenerzeugung allgemein , IMAGE DATA PROCESSING OR GENERATION, IN GENERAL



    Track apparent flaw inspection trolley and detection method

    OU PENGCHENG / WANG JIN / QIU SHI et al. | European Patent Office | 2024

    Free access

    Track fastener inspection robot and identification method thereof

    YANG CHANGHUI / HU JUNYU / LI YANPING et al. | European Patent Office | 2023

    Free access

    Embedded magnetic suspension track inspection trolley

    TIAN YE / QIU FEILI / LIU XU et al. | European Patent Office | 2024

    Free access

    Foldable and compact track inspection trolley

    GU JIANLIN | European Patent Office | 2024

    Free access

    Track detection trolley

    LUO JIANLI / HUANG CHAOSHENG / YANG FENG et al. | European Patent Office | 2022

    Free access