A high-speed train lateral vibration control method based on magnetorheological damping model

Abstract

The invention discloses a method for controlling lateral vibration of a high-speed train based on a magnetorheological damping model. A magnetorheological damper is arranged in a differential structure between the car body and the bogie of the high-speed train, which effectively overcomes the magnetorheological The impact of the initial compression or expansion state of the damper on the offset of the train; on the basis of the Bouc-Wen magnetorheological damping dynamic model and the dynamic model theory of high-speed trains, the magnetorheological model fitted with hyperbolic tangent function The time-delay variable between the speed and displacement of the damper, a complete and accurate nonlinear current control variable damping model of high-speed trains is proposed, and it is used to guide the current control of the magneto-rheological damper. The control characteristics are highly consistent, and finally the magnetorheological damper is electronically controlled by the second-order synovial film control method with high control accuracy, realizing the suppression of the lateral vibration of the high-speed train.

Description

technical field [0001] The invention relates to the field of lateral vibration control of high-speed trains, in particular to a method for controlling lateral vibration of high-speed trains based on a magnetorheological damping model. Background technique [0002] High-speed trains are favored by people for their advantages such as quickness and comfort, so they are increasingly occupying the core position of the transportation industry. However, with the increase of the speed of high-speed trains, the stability problems caused by its lateral vibration are becoming more and more serious. [0003] The lateral vibration of the train mainly depends on the suspension system of the train to weaken it. Suspension systems mainly include passive, semi-active and active suspension forms. The traditional passive suspension system has the advantages of simple structure and low cost, but its performance is insufficient, and it is difficult to meet the requirements of rolling stock run...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the above-mentioned deficiencies in the prior art, the present invention provides a method for controlling the lateral vibration of high-speed trains based on the magnetorheological damping model, which solves the problem that the prior art fails to effectively overcome the gap between the speed and the displacement of the magnetorheological damper. time-lag characteristics, and under the existing semi-active suspension system scheme, the train lateral vibration control ability is insufficient

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