基于TM-DIC方法的桥梁动态响应测量  

Dynamic Response Measurement of Bridge Based on TM-DIC Method

作　　者：杜文康 雷冬[1,2] 白鹏翔 朱飞鹏[1] DU Wen-kang;LEI Dong;BAI Peng-xiang;ZHU Fei-peng(College of Mechanics and Materials,Hehai University,Nanjing Jiangsu 211100,China;Suzhou Research Institute of Hehai University,Suzhou Jiangsu 215100,China)

机构地区：[1]河海大学力学与材料学院,江苏南京211100 [2]河海大学苏州研究院,江苏苏州215100

出　　处：《计算机仿真》2024年第8期175-181,共7页Computer Simulation

基　　金：苏州市科技发展计划(NO.SYC2022080);国家自然科学基金(12172120);江苏省研究生科研与实践创新计划项目(KYCX230660)。

摘　　要：针对现有的桥梁动态响应测量系统及设备造价高、检测繁、推广难等问题,提出了一种基于TM-DIC方法的桥梁结构动态响应测量技术。方法利用常见的汉字特征作为识别目标,以智能手机作为采集设备,利用无线网路传输图像及视频数据,实现了非接触式便携测量。相较于现有视觉方法,上述技术融合模板匹配和数字图像相关方法,实现了目标自跟踪识别,自动划分感兴趣区域,大大减少了人为干预。通过实验室模型实验和现场实验进一步验证了方法的精度和稳定性。结果表明,所提方法具有成本低、精度高、便携性好的显著优势,为桥梁结构动态响应测量提供了新的解决思路。Due to problems such as high cost,complicated detection and difficult promotion of the existing bridge dynamic response measurement system and equipment,a dynamic response measurement technique for bridge structures based on the TM-DIC method is proposed.The method utilizes common Chinese character features as identification targets,uses smartphones as acquisition devices,and transmits image and video data using wireless networks to realize non-contact portable measurements.Compared with existing vision methods,this technique incorporates template matching and digital image corelation methods to achieve self-tracking recognition of targets and automatic delineation of regions of interest,which greatly reduces human intervention.The accuracy and stability of the method were further verified by laboratory model experiments and field experiments.The results show that the method has the significant advantages of low cost,high accuracy and good portability,which provides a new solution for the dynamic response measurement of bridge structures.

关 键 词：桥梁变形测量 结构动态响应 机器视觉 模板匹配 数字图像相关 

分 类 号：TB24[一般工业技术—工程设计测绘] TP391.9[自动化与计算机技术—计算机应用技术]