Vehicle-bridge coupling power experimental model device

A technology of dynamic experiments and model devices, applied in teaching models, educational tools, instruments, etc., to achieve the effect of enhancing perceptual knowledge

Inactive Publication Date: 2009-10-21
BEIJING JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, in the field of bridge vibration research, there is no report on using the vehicle-bridge model to simulate the dynamic interaction process between the vehicle and the bridge

Method used

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  • Vehicle-bridge coupling power experimental model device

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Experimental program
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Embodiment Construction

[0014] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0015] Such as figure 1 As shown, the vehicle-axle coupling dynamic experiment model device is composed of a model vehicle and a model bridge. Model vehicle 6 is a two-series suspension device designed and processed according to the scale of 1:10 according to the structure and shape of the 25K bus in actual operation. . The model bridge includes a beam 1, a pier 2, an acceleration section, a deceleration section, a track, an anti-rebound device 12, and the like. in:

[0016] The acceleration section is made up of an acceleration ramp 7, a transition curve 8 and a straight line 9, that is, the track line from the motor 3 to the front section of the beam 1 is supported by a support 14.

[0017] The deceleration section adopts two-stage deceleration devices. The first-stage deceleration device 10 is an elastic belt on the beam pulled by a hook ...

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Abstract

The invention discloses a vehicle-bridge coupling power experimental model device, and belongs to the technical field of railroad bridge engineering. The experimental model device consists of a model vehicle and a model bridge, wherein the model bridge comprises a multi-span continuous beam, a bridge pier, an acceleration section and a deceleration section. The model vehicle is processed according to the size and structure of a real vehicle. The vehicle is pulled to different positions and heights of the acceleration section by an electric motor, and then is released by power down so as to ensure that the vehicle passes through the bridge at different speeds. The deceleration section is provided with a two-stage deceleration device to consume the kinetic energy of the vehicle, and simultaneously, in order to prevent the vehicle from rebounding, the end part of the deceleration section is provided with an anti-rebounding device. By using the experimental model device, the real structures of the vehicle and the bridge can be known, and the power coupling action process between the vehicle and the bridge when the vehicle passes through the bridge can be simulated.

Description

technical field [0001] The invention relates to a dynamic experiment model device for simulating the dynamic coupling effect of a vehicle and a bridge, belonging to the technical field of railway bridge engineering. Background technique [0002] When the train passes the railway bridge, it will inevitably cause the bridge to vibrate. At this time, the bridge structure must not only bear the static force, but also bear the moving load, that is, the loading and unloading of the bridge when the train passes by at a certain speed and due to Various dynamic effects such as inertial forces generated by vibrations of bridges and vehicles. The bridge vibration caused by these dynamic actions may cause structural members to fatigue and reduce their strength and stability; when the bridge vibration is too large, it will also affect the safety and stability of the vehicles on the bridge. [0003] Scholars from various countries have adopted two types of research methods with different...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09B25/04
Inventor 夏禾战家旺张楠
Owner BEIJING JIAOTONG UNIV
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