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High speed train model wind tunnel test standard roadbed

A wind tunnel test, high-speed train technology, applied in the direction of aerodynamic test, machine/structural component test, measuring device, etc., can solve the problem of large aerodynamic error

Inactive Publication Date: 2018-06-08
LOW SPEED AERODYNAMIC INST OF CHINESE AERODYNAMIC RES & DEV CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, there is a large error in the detection of aerodynamics.

Method used

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  • High speed train model wind tunnel test standard roadbed
  • High speed train model wind tunnel test standard roadbed
  • High speed train model wind tunnel test standard roadbed

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Embodiment 1: Three-vehicle marshalling subgrade wind tunnel test, two sets of sliding support module are respectively connected to both ends of the fixed support module, and then two groups of subgrade edge modules are respectively connected to both ends of the sliding support module.

[0023] Adjust the sliding table to ensure that the distance between the support bases meets the test requirements, install the high-speed train car model on the support bases, bury all the connecting cables in the wiring grooves, and then conduct the wind tunnel test.

[0024] If you need to replace other types of train models, you only need to adjust the sliding table so that the distance between the support seats can adapt to the length of the car to be replaced, and then install the replaced car on the support seat to carry out the wind tunnel test.

Embodiment 2

[0025] Example 2: A wind tunnel test for a one-and-a-half-car marshalling subgrade. Two groups of subgrade edge modules are installed on the fixed support base modules, and then one and a half marshalling cars are installed on the support base to carry out the wind test.

[0026] In the conversion process of the three-car formation and the one-and-a-half-car formation, the conversion can be realized quickly only by removing the sliding support module, which can greatly save the roadbed layout time.

[0027] This scheme establishes a unified high-speed train model test platform to realize the comparability of high-speed train test data in different periods. At present, especially in the wind tunnel tests of high-speed trains carried out by different domestic high-speed train development units, the subgrade shapes and structures used are different, and the subgrades used by the same unit in different periods of tests are also different. Through comparative research, it is found ...

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Abstract

The invention provides a high speed train model wind tunnel test standard roadbed. According to the scheme, the high speed train model wind tunnel test standard roadbed comprises a fixed supporting base module, a slide supporting base module and a roadbed edge module. The fixed supporting base module, the slide supporting base module and the roadbed edge module are provided with mutually matched slide rails. The fixed supporting base module is fixedly provided with a supporting base. The slide supporting base module is provided with a slide table. The slide table is arranged on a guide rail and can freely slide along the guide rail. The slide table is fixedly provided with the supporting base. The fixed supporting base module, the slide supporting base module and the roadbed edge module can mutually and freely docked. According to the scheme, segmented and modular design of the roadbed is adopted, and the slide rails are arranged and the space between the supporting bases can be adjusted so that pneumatic testing of different length of train models under the same roadbed can be met, the error of the pneumatic influence caused by different roadbeds can be eliminated and the problemof the influence of different roadbed outline structures on the test data can be effectively solved.

Description

technical field [0001] The invention relates to a high-speed train aerodynamic experiment device, in particular to a high-speed train model wind tunnel test standard roadbed. Background technique [0002] High-speed train model wind tunnel test is one of the important supporting bases for high-speed train shape design optimization. Therefore, high-speed train development units have continuous and large demand for wind tunnel test. At present, the wind tunnel tests of high-speed train models at home and abroad are basically carried out on the test section of the fixed ground (floor). In order to reduce the influence of the ground effect, the test roadbed has become a very necessary device for wind tunnel tests and is widely used at home and abroad. Especially in domestic high-speed train model wind tunnel tests. Therefore, the test standard subgrade is very necessary and important equipment for the current high-speed train model wind tunnel test. [0003] The subgrades used...

Claims

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Application Information

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IPC IPC(8): G01M9/04
CPCG01M9/04
Inventor 黄志祥陈立段雪峰高大鹏
Owner LOW SPEED AERODYNAMIC INST OF CHINESE AERODYNAMIC RES & DEV CENT
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