Device and method for testing flow field state in bogie compartment of high-speed train

Abstract

The invention belongs to the field of railway vehicles, and discloses a device and method for testing the flow field state in the cabin of a high-speed train bogie. The bogie is surrounded by a skirt plate and an end plate, and the test device includes: uniformly arranged on the inner wall of the skirt plate and the end plate multiple test points in the bogie compartment, multiple camera devices installed in the bogie compartment, smoke generators communicated with the bogie inner cavity through pipes, and one or more smoke outlets set on the top of the bogie, each test point is A test strip is attached, and the distance between the test points is greater than twice the length of the test strip. The invention has the following advantages: the test method is simple and effective, and can truly present the air flow state in the bogie cabin; the test equipment has a simple structure, low test cost, and good operability; by observing the fluorescent test line, the end plate and the skirt can be monitored and recorded in real time The air flow direction at the board; the colored smoke is emitted into the bogie cabin through the smoke generator, and the gas flow conditions in the bogie cabin area are monitored and recorded in real time.

Description

Technical field [0001] The invention relates to the technical field of railway vehicles, in particular to a device and method for testing the flow field state in the bogie cabin of a high-speed train. Background technique [0002] When a high-speed train is running in a wind and snow environment, there will be snow and icing in the bogie area. In order to solve the snow and icing problem in the bogie area, it is necessary to grasp the air flow in the bogie cabin. The airflow direction at the side end plates and the skirt plates on both sides is extremely important to determine the improvement plan for snow accumulation. Because the internal structure of the bogie is extremely complicated, the air flow in the bogie cabin is also extremely complicated. Although the flow field conditions in the bogie cabin can be obtained through the method of simulation calculation, the simulation calculation is limited by the calculation conditions, and the structure of the bogie will be simplifi...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is: in order to solve the problem that when the high-speed train is running in the wind and snow environment, there is easy snow and ice in the bogie compartment, and it is necessary to improve according to the flow state of the airflow in the bogie, so as to reduce the phenomenon of ice and snow icing Although the simulated state of the air flow can be obtained through the simulation calculation, due to the complexity of the internal structure of the bogie and the limitation of the calculation conditions, it is necessary to simplify the model of the bogie to complete the simulation calculation. The obtained results are consistent with those of the bogie There are bound to be differences in the real flow state of the airflow in the cabin, which has a great impact on the determination of the snow prevention improvement plan, and it is impossible to completely prevent the snow from freezing

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