Flexible weighing method and one-dimensional spacer adding method for railway vehicle body

Abstract

The invention provides a flexible weighing method and one-dimensional spacer adding method for a railway vehicle body. Technical springs are installed above four weighing supporting points of a weighing test bench; when a vehicle body is weighed and falls, the vehicle body is in contact with the technical springs directly without any deformation and supporting forces F1, F2, F3, and F4 from the four weighing supporting points are applied on the vehicle body. In addition, the invention also provides a one-dimensional spacer adding method for a railway vehicle body. The one-dimensional spacer adding method comprises: a one-dimensional spacer-adding rigidity matrix of a vehicle body is solved; an equivalent relationship of four positions with spacer adding is calculated by using the rigidity matrix and spacer adding of the four positions is equivalent to spacer adding of one position; the one-dimensional spacer-adding method is compiled into a computer language to obtain a one-dimensional spacer-adding algorithm of a vehicle body; and information including an initial load of vehicle body weighing is inputted into the one-dimensional spacer-adding algorithm of flexible weighing of a railway vehicle body to obtain a spacer adding position and a spacer adding value. According to the invention, the influence on a weighing result by vehicle body weighing deformation is eliminated; intelligent weighing and spring adjustment are 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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