Edge Detection Technology and its Application in the Model Test of Vehicle Bridge Coupled Vibration

Abstract:

At present, point sensors are mainly used in the measurement of the vehicle and bridge coupled vibration system. And only limited points of the system are measured. Test results can not be compared with calculated and analyzed results in the full field of the system. In the model test of the vehicle bridge vibration, test video is captured with a camera, each frame of the video is processed by the sub-pixel edge detection techniques to identify the deformation of the beam at each time, and the time history of the vibration response at each point of the beam. The model test results are compared with the calculated results of the vehicle bridge coupled vibration system. It is shown in the comparison that the beam deformation curves of both the test and analysis at each time are agreed quite good, and the time history responses of each point of the beam are also in good agreement. It means that the application of the video detection techniques in the vehicle and bridge coupled vibration model test is successful. Taking into account the advantages of the full field high density measurement and the synchronized measurement of the moving vehicle and bridge, further research and extension on the video detection technology are necessary.

• Periodical: Advanced Materials Research (Volumes 919-921)
• Pages: 373-377
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.919-921.373
• Online since: April 2014
• Authors: Jing Wu, Xiang Rong Yuan*
• Keywords: Edge Detection, Vehicle Bridge Coupled Vibration, Video Measurement Technology

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