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Bridge vibration testing method and related device

A technology for vibration testing and bridges, applied in measuring devices, measuring ultrasonic/sonic/infrasonic waves, instruments, etc., can solve problems such as limited engineering applications, inconvenient camera installation, etc., to ensure completeness, improve applicability and convenience, The effect of overcoming the inconvenience of erection

Inactive Publication Date: 2019-09-10
GUANGDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, for the scheme of using cameras for image acquisition and then image analysis to realize bridge vibration testing, considering the actual bridge engineering situation, the camera will be affected by the terrain and not easy to erect, which limits its engineering application

Method used

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  • Bridge vibration testing method and related device
  • Bridge vibration testing method and related device
  • Bridge vibration testing method and related device

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Embodiment Construction

[0036] The core of this application is to provide a bridge vibration test method, which can effectively guarantee the completeness of test data and improve the applicability and convenience of bridge vibration test. Another core of the present application is to provide a bridge test device, equipment, system and computer-readable storage medium, all of which have the above-mentioned technical effects.

[0037] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, not all of them. According to the embodiments in the present application, all other embodiments obtained by persons of ordinary skill in the art without making creative ...

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Abstract

The application discloses a bridge vibration testing method. The method comprises the following steps: receiving a bridge vibration time sequence image collected by an unmanned aerial vehicle, and performing image correction processing on the bridge vibration time sequence image; performing relevancy analysis on the bridge vibration time sequence image after image correction processing by utilizing the digital image technology so as to obtain a vibration displacement travel curve; performing Fourier transform on the vibration displacement time travel curve and a force time travel curve acquired by testing excitation points so as to obtain a displacement frequency response function; performing modal analysis on the displacement frequency response function to obtain a modal parameter. The bridge vibration testing method disclosed by the invention can effectively guarantee the completeness of the testing data, and the applicability and convenience of the bridge vibration testing are improved. The application further discloses a bridge vibration testing device, equipment and system, and a computer readable storage medium with above technical effects.

Description

technical field [0001] The present application relates to the field of health monitoring of bridge structures, in particular to a bridge vibration test method; it also relates to a bridge vibration test device, equipment, system and computer-readable storage medium. Background technique [0002] Traditional bridge vibration testing mostly adopts the method of contact testing, which is measured by level gauge, dial indicator, acceleration sensor and displacement sensor. The above-mentioned method needs to arrange a large number of measuring points, complicated operation, high cost, and the arrangement of measuring points is limited, so only the data information and low-order modes of the local position of the bridge structure can be collected. Therefore, using it as the actual measurement data of the bridge vibration test will lead to incomplete test data, which limits the application of the full-scale test of the bridge structure in engineering, and cannot meet the needs of ...

Claims

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Application Information

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IPC IPC(8): G01H9/00
CPCG01H9/00
Inventor 陈贡发钟文韬
Owner GUANGDONG UNIV OF TECH
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