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Simulated moving model experiment method and apparatus for aerodynamic performance of train

A technology of aerodynamic performance and test method, which is used in aerodynamic test, measurement device, railway vehicle test, etc.

Active Publication Date: 2009-08-05
CENT SOUTH UNIV
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  • Simulated moving model experiment method and apparatus for aerodynamic performance of train
  • Simulated moving model experiment method and apparatus for aerodynamic performance of train
  • Simulated moving model experiment method and apparatus for aerodynamic performance of train

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Embodiment Construction

[0033] The train aerodynamic performance simulation dynamic model test method uses a train model set on the track, and divides the track into a launching section, a test section and a braking section according to the acceleration direction of the train model, and the train model is pulled in the launching section so that the elastic traction mechanism Generate shrinkage elastic force; the train model is separated from the elastic traction mechanism at the critical point between the launch section and the test section; the train model stops moving in the braking section. An elastic traction mechanism is set at one end of the track, and the elastic traction mechanism pulls the train model through a moving pulley speed-up mechanism; the train model is pulled to the other direction of the other track, so that the elastic traction mechanism is tensioned to generate contraction elastic force; then released After stretching the train model, the train model is accelerated to a measurin...

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Abstract

The invention relates to a testing method and a testing device of a train pneumatic performance simulation moving module. The testing method comprises the following steps: a train model on rails is used, one end of the trail model is provided with an elastic traction mechanism which passes through a travelling block speed increasing mechanism and a traction train module; the train model is pulled to the other direction of the other rail to enable the elastic traction mechanism to tension to generate contraction elasticity; and the pulled train model is released and is speeded up to the testing speed under the drive of the contraction elasticity of the elastic traction mechanism. The invention has simple implementation method and easy control, can realize the operation that the trail can quickly accelerate to 400 km / h from still and from high-speed brake to still, has higher testing accuracy, can relatively truly reflect ground effect and train crossing condition and reflect various actual running states of trains on rails.

Description

technical field [0001] The invention belongs to the technical field of train aerodynamic performance simulation tests, and in particular relates to a train aerodynamic performance simulation dynamic model test method capable of realizing high fidelity and realism simulation tests and the experimental device thereof. Background technique [0002] The train is a large object running at high speed on the ground. The sudden change of air pressure caused by the intersection of two opposite trains on the double line and the train passing through the tunnel will have a serious impact on driving safety, passenger comfort and the surrounding environment, such as causing excessive Large deformation, destroying the structure of the car body, smashing the window glass, damaging the air intake device of the air conditioning system, sucking down the objects of the passing train, and the transient yaw of the train is too large (may cause the derailment of the wheel-rail train, or damage the...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M17/08G01M9/06
Inventor 田红旗梁习锋张健高广军姚松鲁寨军刘堂红
Owner CENT SOUTH UNIV
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