High-speed train-tunnel aerodynamic characteristic movable model experiment system

A technology of air and dynamic characteristics of tunnels, which is applied in aerodynamic tests, machine/structural parts testing, and measuring devices, etc., can solve problems such as inability to launch large train models, decrease in experimental accuracy, and deflection of running tracks, and achieve It is convenient to improve and research, the experimental data is real, and the effect of smoothness is good

Inactive Publication Date: 2010-10-06
SOUTHWEST JIAOTONG UNIV
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Problems solved by technology

There are two types of launching devices for launching dynamic models: rubber slingshot launching devices and compressed air-powered air cannon launching devices; the guide rail mainly uses steel wire ropes, and the dynamic model test system with steel

Method used

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  • High-speed train-tunnel aerodynamic characteristic movable model experiment system
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  • High-speed train-tunnel aerodynamic characteristic movable model experiment system

Examples

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Embodiment

[0022] The implementation of this example is, figure 1 Shown is a high-speed train-tunnel dynamic model test system for aerodynamic characteristics, including an air cannon launching device 6, a train model 1, a tunnel model 2, and a guide rail 3 in the tunnel model 2.

[0023] figure 1 , 2 , 3 show that the section of the gun barrel 4 of the air cannon launching device 6 of this example is "door arch" shape, and its bottom 3 ' shape is the same as the guide rail 3 shape in the tunnel model 2, and is the same as the guide rail in the tunnel model 2. 3 are connected into an integrated structure; the section of the guide rail 3 is an "I"-shaped structure, and the middle of the bottom of the train model 1 matches the "I"-shaped structure of the guide rail 3, and the train model 1 is slidably fitted on the guide rail 3.

[0024] figure 2 It is also shown that a wheel 5 is installed between the upper surface of the "I"-shaped structure of the guide rail 3 of this example and th...

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Abstract

The invention relates to a high-speed train-tunnel aerodynamic characteristic movable model experiment system which comprises an air cannon launching device (6), a train model (1), a tunnel model (2) and a guide rail (3) in the tunnel model (2); the section of the cannon tube (4) of the air cannon launching device (6) is in the shape of a gate arch, the shape of the bottom (3') thereof is the same with the shape of the guide rail (3) in the tunnel model (2), and the bottom (3') and the guide rail (3) in the tunnel model (2) are connected into an integrated structure; and the section of the guide rail (3) is in an I-shaped structure, the middle at the bottom of the train model (1) is matched with the I-shaped structure of the guide rail (3), and the train model (1) is embedded on the guide rail (3) in a sliding mode. Through the system, the train model stably runs on the guide rail, the train model has large size and is more approximate to the real state of train running, and the aerodynamic characteristic of a train running in a tunnel can be better simulated and researched.

Description

technical field [0001] The invention relates to a high-speed train-tunnel aerodynamic characteristic dynamic model test system. Background technique [0002] When conducting experimental research on the aerodynamic characteristics of trains, the direct and real method is the online real-car test; however, a complete real-car test requires a lot of manpower, material and financial resources, and it is not easy to organize a test. Due to limited data and ever-changing natural conditions, such as the uncontrollable wind speed and direction of the environment, repeatability is difficult to guarantee; moreover, the actual vehicle test can only be carried out after the train is manufactured, which is too expensive to develop a new vehicle. Therefore, the actual vehicle test generally focuses on verification, evaluation, and assessment tests, with research tests also taken into consideration. Research experiments are mainly carried out by model tests. Model tests for the study of...

Claims

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Application Information

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IPC IPC(8): G01M9/08
Inventor 王英学高波李思忠王军周佳媚申玉生全晓娟贺旭洲付业凡刘佩斯张超高玄涛孙向东
Owner SOUTHWEST JIAOTONG UNIV
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