基于视觉测振技术的高铁无站台柱雨棚振动测量方法  

Vibration measurement method of canopy without station column for high-speed railway based on vision technology

作　　者：冯海龙 刘伯奇 胡海天 王岩 王世铭 丁晓宇[3] FENG Hailong;LIU Boqi;HU Haitian;WANG Yan;WANG Shiming;DING Xiaoyu(Railway Engineering Research Institute,China Academy of Railway Sciences Corporation Limited,Beijing 100081,China;Tieke Inspection Corporation Limited,Beijing 100081,China;School of Mechanical Engineering,Beijing Institute of Technology,Beijing 100081,China)

机构地区：[1]中国铁道科学研究院集团有限公司铁道建筑研究所,北京100081 [2]铁科检测有限公司,北京100081 [3]北京理工大学机械与车辆学院,北京100081

出　　处：《地震工程与工程振动》2022年第3期209-215,共7页Earthquake Engineering and Engineering Dynamics

基　　金：中国国家铁路集团有限公司科技研究开发计划项目(J2020G003)。

摘　　要：高铁站台雨棚长期处于频繁振动状态,为确保高铁安全运行,针对雨棚进行结构健康监测具有重要意义,然而由于其具有面积大、数量多等特点,传统布设传感器的监测方法难以在工程中推广使用。文中采用基于相位的测振算法原理,搭建了一个面向高铁站台雨棚的视觉测振系统,通过某小型振动台开展了精度验证试验,结果表明,以某光栅位移传感器为基准,所搭建视觉测振系统的最大误差为0.013 mm、平均误差为0.0029 mm、误差标准偏差为0.0042 mm。然后,文中以高铁无站台柱雨棚为对象,开展了实际工况下雨棚的振动检测工作,分析了列车运行对雨棚振动的影响规律,结果证明本文所搭建的视觉测振系统具有较好的工程应用价值,可为高铁站台雨棚健康监测提供精确的振动数据。The high-speed railway platform canopy is in a state of frequent vibration,and its structural health monitoring is of great significance to ensure the safe operation of the high-speed railway.However,due to the large area and large number of canopies,the traditional sensors are difficult to be used in engineering.In this paper,a phasebased motion estimation algorithm principle is used to build a visual vibration measurement system for the canopy of high-speed railway platform.The accuracy verification test is carried out through a vibration equipment.Based on a grating displacement sensor,the maximum error of the visual vibration measurement system is 0.013 mm,the average error is 0.0029 mm,and the error standard deviation is 0.0042 mm.Then,this paper takes the high-speed railway platform canopy as the object,carries out the vibration detection of the canopy under the actual working conditions,and analyzes the influence of the train operation on the vibration.The results prove that the system built in this paper has good engineering application value,and can provide accurate vibration data for high-speed railway station canopy health monitoring.

关 键 词：高铁站台 视觉测振 结构健康检测 

分 类 号：TN911.7[电子电信—通信与信息系统] U217[电子电信—信息与通信工程]