Bridge damage position lossless identification method, storage medium and equipment
A damage location and identification method technology, applied in design optimization/simulation, data processing applications, instruments, etc., can solve the problem of not being able to easily identify the damage location of bridge structures, and achieve the effect of preventing large-scale damage and simple operation
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specific Embodiment approach 1
[0051] This embodiment is a non-destructive identification method of bridge damage position. Since the present invention is based on the local vertical displacement response of the bridge for identification, the present invention is a non-destructive identification method for identifying the bridge damage position based on the local vertical displacement response of the bridge. , which is essentially a recognition method based on the adaptive unscented Kalman filter algorithm.
[0052] A method for nondestructive identification of bridge damage locations described in this embodiment includes the following steps:
[0053] Step 1. According to D'Alembert's principle, structural dynamics and finite element theory, the motion control differential equation of the structure is deduced or a finite element model of the structure is established. The structure is a bridge structure, which is abbreviated as structure for convenience of expression;
[0054] In this process, the motion con...
Embodiment
[0106] In order to fully explain the present invention, the present invention is described by taking the vehicle-axle coupling system as an embodiment.
[0107] In order to fully illustrate the present invention, in this embodiment, the Figure 4 The illustrated vehicle-axle coupling system is illustrated:
[0108] The vehicle-axle coupling system includes the vehicle body mass 1 of the quarter vehicle model, the suspension stiffness 2 between the vehicle body and the tires of the quarter vehicle model, the vehicle body and the tire of the quarter vehicle model. Suspension damping between tires 3, tire mass for quarter vehicle model 4, contact stiffness between tire and bridge for quarter vehicle model 5, tire-bridge contact point 6, fixed end for simply supported boundary constraints 7. Beam element 8, beam element node 9 and simply supported boundary constrained sliding end 10;
[0109] The contact point 6 between the tire and the bridge refers to that the tire and the bri...
specific Embodiment approach 2
[0118] This embodiment is a storage medium, and the storage medium stores at least one instruction, and the at least one instruction is loaded and executed by a processor to implement a method for non-destructive identification of bridge damage locations.
[0119] It should be understood that the storage media described in this embodiment include but are not limited to magnetic storage media and optical storage media; the magnetic storage media include but are not limited to RAM, ROM, and other storage media such as hard disks and U disks.
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