Rail vehicle curve passage capacity testing method

Abstract

The invention relates to a rail vehicle curve passage capacity testing method which includes the following steps that (A) trains to be tested are placed on test platforms; (B) according to test requirements, weight balancing equipment with the corresponding weight is arranged in the trains so that bodies of the trains can meet a needed state requirement; (C) whether the two trains to be tested interfere with each other is detected in an initial state; (D) multiple vertical excitation devices and transverse excitation devices are controlled to move a certain distance in the vertical direction and the transverse direction by testing needed track line conditions, so that center lines of the four test platforms are not in the forwarding direction of the trains, and a curve and a superelevation of an actual line are simulated; (E) according to displacement values obtained through testing, a curve radius is obtained through conversion, whether the two trains to be tested interfere with each other in the monitoring process is detected, meanwhile, wheel rail transverse force Y and wheel rail vertical force Q of each wheel are recorded, and accordingly the curve passage capacity of the trains is analyzed. The method can simulate different line curve situations according to actual situations, is low in cost, high in efficiency, and capable of testing on different track situations and in different vehicle states.

Description

technical field [0001] The invention relates to a method for testing the curve passing ability of rail vehicles, which belongs 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, railways have been laid to all parts of the country. Due to the large land area of ​​our country and the great differences in topography and landforms, various curved roads have appeared in the construction of railways, such as S-shaped curves, vertical convex Curves, vertical concave curves, etc., in order to better adapt to various routes and ensure that various vehicles can operate safely in various curved curves, the vehicle's curve passing ability is considered in vehicle design. In order to...

AI Technical Summary

Problems solved by technology

This method is relatively simple, but the software simulation is only an ideal situation, and cannot fully consider the suspension system and force status of the actual train, so there is a certain gap with the actual test

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