Method for measuring vertical dynamic disturbance of high-speed railway bridge based on unmanned aerial vehicle
A measurement method and unmanned aerial vehicle technology, which is applied in the testing of machines/structural components, measuring devices, elastic testing, etc., can solve the requirements of high environmental requirements, affecting the stability of the camera attitude, and difficulty in meeting sub-millimeter level measurement accuracy requirements and other problems, to achieve high-precision measurement, simple and efficient measurement process
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[0049] Embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0050] Such as figure 1 As shown, the disturbance refers to the displacement of the centroid of the cross section perpendicular to the axial direction of the beam after the beam is bent and deformed, the position of the cross section in the beam will change. So the disturbance is the change in position of the cross section in the beam relative to the fixed end points of the beam.
[0051] For the high-speed rail bridge (simply supported beam type), it can be considered that the two ends of the bridge where the two pier support points at the left and right ends of the high-speed rail bridge are located are static and unchanged, and the mid-span position of the high-speed rail bridge is in the vertical direction relative to the two ends. The position change is the vertical disturbance degree of the high-speed rail bridge.
[0052] When using a ...
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