An indoor full-scale test rig for evaluating bogie active suspension control performance

Abstract

The invention provides an indoor full-scale test bench for evaluating the active suspension control performance of the bogie, including the railway track used in the test process and the high-speed railway train bogie used for the test set on the railway track, and guide rails are arranged on the outside of the bogie , the traction guide frame is set on the guide rail, the traction guide frame is connected with the bogie through the traction rod, the vertical hydraulic actuator and the lateral hydraulic actuator are arranged between the traction guide frame and the bogie, and the traction guide frame is connected with the drive system And run on the guide rail under the action of the drive system, and place counterweights respectively at the front and back of the traction guide frame. The invention can simulate the active suspension control process of the bogie under the action of external excitation load, and evaluate the reliability, safety and control effect of the active suspension control by studying the wheel-rail contact state, bogie running speed and external excitation conditions , to realize the research on the train active suspension control system.

Description

technical field [0001] The invention belongs to the technical field of rail transit, and in particular relates to an indoor full-scale test bench for evaluating the active suspension control performance of a bogie. Background technique [0002] High-speed railway has developed rapidly because of its high speed, comfort and safety. At the same time, high-speed trains are faced with complex and changeable external environmental conditions, complex operating conditions, and the evolution of service performance. Traditional passive suspensions often fail to optimize all indicators. Therefore, the active control system of high-speed railways has become the key to the development of high-speed railways in the future. important direction. However, at this stage, many active control technologies are based on theory without experimental evaluation, so their reliability and safety cannot be guaranteed and they are not widely used on high-speed trains. Therefore, in order to evaluate...

AI Technical Summary

Problems solved by technology

[0004] 1. Carry out the evaluation test of the active suspension control system on the actual line. This method can accurately simulate the running state of the actual train, but it has many shortcomings: it is difficult to grasp the line state and environmental excitation in the test process in real time; secondly, the train The parameters cannot be measured accurately and cannot be changed according to the test requirements; not only that, because the active control test of the train has a great impact on the driving safety of the train, the reliability of the active control cannot be guaranteed, so the active control evaluation test of the actual line is generally only Can carry out simple semi-active control, but cannot carry out tests under extreme working conditions; finally, the actual line test will affect the normal operation of the line, the test period is long, and the economy is poor

However, replacing the rail with a rolling wheel with a limited radius cannot accurately describe the geometric relationship between the wheel and the rail, and cannot reflect the real state of the wheel-rail interaction, so it cannot be used for the active control test of vehicle stability.

[0008] Therefore, there are obvious deficiencies in the actual line test, scale model test and full-scale vehicle rolling table test and evaluation of high-speed train active control technology.

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