Testing method of railway vehicle flexibility coefficient

Abstract

The invention relates to a testing method of a railway vehicle flexibility coefficient, which particularly comprises the following steps that A, a to-be-tested train is placed on test platforms; B, counterweight equipment with corresponding weight is placed in the train according to a test requirement, so that a train body of the train reaches a test required state requirement; C, a plumb is hung above the center of an end plane of the tested train; marking is performed; D, vertical shock excitation devices, transverse shock excitation devices and longitudinal shock excitation devices which are below the test platforms are controlled, so that top plates of the test platforms form a gradient, and the front and rear test platforms generate a certain distance in a transverse direction; height differences between the left sides and the right sides of the surfaces of the test platforms are recorded; an angle delta formed by the test platforms in left and right directions is calculated; an angle eta formed between a plumb line hung above the end surface of the train and a position marked in Step C is measured; and E, the flexibility coefficient under an operating condition is obtained by dividing of the angle eta and the angle delta which are measured in Step D. The method can simulate various slopes according to actual conditions, is low in cost and high in efficiency, and can test for different rail conditions and different vehicle states.

Description

technical field [0001] The invention relates to a method for testing the flexibility coefficient of rail vehicles, belonging to the technical field of rail vehicle manufacturing. Background technique [0002] Since April 1997, China's railways have carried out six large-scale speed increases. By July 1, 2010, China has officially entered the era of high-speed rail, and the fastest speed of high-speed rail can reach 322km / h. [0003] With the development of railway transportation, the speed of trains is getting higher and higher. In order to ensure the high-speed passage of trains and tunnels, as well as the comfort of passengers, in order to solve the problems caused by the high-speed vehicles, the vehicles are installed The anti-roll torsion bar device ensures the ability of the vehicle to pass through curves and tunnels at high speed. To verify the anti-rolling ability of the vehicle is measured by the vehicle's own flexibility coefficient. In the vehicle design, the esta...

AI Technical Summary

Problems solved by technology

This method is more economical and simulates the actual situation of the train at the same time. However, this method has a high risk factor. It is time-consuming and labor-intensive to lift the car body on one side manually, and the car body is lifted by one side manually, which is prone to errors. , the result deviates greatly from the true value

[0012] Therefore, the above-mentioned flexibility coefficient test method and device have obvious deficiencies and shortcomings in the research on the mechanism of vehicle anti-rolling.

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