Acceleration and deceleration device for axle coupling vibration model test and acceleration and deceleration method thereof

Abstract

The invention discloses an acceleration and deceleration device for an axle coupling vibration model test and an acceleration and deceleration method of the acceleration and deceleration device. The acceleration and deceleration device comprises an acceleration section, an axle coupling vibration test area, a horizontal approach, a deceleration section, a supporting device, a bridge support and ahorizontal guide rail. The accelerating section is provided with an accelerating device; the axle coupling vibration test area comprises a bridge model and a model vehicle. Speed reduction section isprovided with a speed reduction device, wherein the acceleration section, the horizontal approach and the deceleration section are supported by a supporting device, the axle coupling vibration test area is supported by a bridge support, and the two horizontal guide rails are arranged above the acceleration section, the axle coupling vibration test area, the horizontal approach and the decelerationsection at intervals. According to the invention, a method of mutual conversion between elastic potential energy and kinetic energy is adopted, and the problem of bridgehead bumping of an existing ramp accelerating device is solved through the accelerating device; the speed reducer is arranged on the guide rail, so that the problems of large impact, noise response, high damage and the like of theconventional impact energy consumption speed reduction method are solved.

Description

technical field [0001] The invention belongs to the technical field of bridge engineering. In particular, it relates to an acceleration and deceleration device for vehicle-axle coupling vibration model test and its acceleration and deceleration method. Background technique [0002] In recent years, with the development of heavy-duty traffic and bridge structures tending to be large-span and light-weight, the proportion of vehicle dynamic loads in the loads on bridges has gradually increased, and the impact and vibration effects of vehicle loads on bridge structures have become It is one of the important factors that cannot be ignored in the calculation and analysis of bridge structures. [0003] In highway engineering, when studying vehicle-bridge coupling interaction, new dynamic parameters change with the changes of bridge structure type, span, loading position, vehicles and other factors. Not only is the operation difficult, the investment is large, and the cycle is lon...

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Problems solved by technology

[0006] In order to solve the above problems, the present invention provides an acceleration and deceleration device and its acceleration and deceleration method for vehicle-bridge coupled vibration model tests. Existing problem of vehicle jumping at the bridge head; through the deceleration device and installing the deceleration device on the guide rail, the problems of large impact, noise and high damage in the existing energy-consuming deceleration method of impact are solved

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