Flexible weighing method for rail vehicle body and one-dimensional cushioning method

Abstract

The invention provides a flexible weighing method for a rail vehicle body. Process springs are installed above the four weighing support points of the weighing test bench. Obtain the supporting forces F1, F2, F3, F4 of four weighing support points, the present invention also provides a kind of one-dimensional padding method of rail vehicle body, comprising the steps of: solving the one-dimensional padding stiffness matrix of the car body; The stiffness matrix is ​​solved to obtain the equivalent relationship between the four positions of padding, and the four positions are equivalent to one position of padding; the one-dimensional padding method of the car body is compiled into computer language, and the one-dimensional padding of the car body is obtained Algorithm; information such as the initial load of the car body weighing is input into the one-dimensional padding algorithm of the flexible weighing of the rail vehicle car body, and the padding position and the padding amount are directly obtained. The invention eliminates the weight deformation of the car body weighing As a result, the intelligent weighing and adjusting spring is realized, and the production efficiency is improved.

Description

technical field [0001] The invention relates to rail vehicle weighing spring adjustment technology, in particular to a method for flexible weighing of urban rail vehicle body and one-dimensional cushioning. Background technique [0002] The traction performance, braking performance and driving safety of rail vehicles are closely related to the distribution of wheel and axle loads, and the unbalanced load of the secondary support points is the main reason for the uneven distribution of wheel loads and axle loads. Therefore, as long as effective Controlling the supporting force of the secondary system can effectively balance the wheel weight and axle load, thereby greatly improving the traction performance, braking performance and driving safety of the vehicle, while improving production efficiency and economic benefits. [0003] At present, the main method of adjusting the supporting force of the secondary series is to weigh the car body first, and then adjust the supporting ...

AI Technical Summary

Problems solved by technology

[0004] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to solve the problem of inaccurate weighing data caused by the weighing deformation of the car body, and propose a flexible weighing system for the rail vehicle body in view of the uncertainty of the original padded position. method and one-dimensional padding method

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