Influence of Air Spring Components on Maglev Train System

Abstract

Objective To study the influence of air springs on maglev train system as one of the components, and solve the problem of deteriorated suspension performance in maglev train system due to the influence of air springs, the mechanism research and simulation analysis of the above problem are carried out. Method First, a maglev model without air springs is built, and based on this, a control algorithm is designed. According to the performance indicators of the maglev system, the optimal control parameters are designed. After determining the control algorithm and optimal control parameters, the influence of air springs is considered in the maglev system model to study the influence of air spring stiffness on maglev suspension performance. The performance of the maglev system is simulated using MATLAB software. During the simulation process, the air spring stiffness is changed without changing the control parameters, and the changes in maglev suspension performance are observed. When the maglev suspension performance deteriorates, the optimal suspension performance is maintained through optimizing control parameters. Result & Conclusion Simulation results show that the air spring stiffness is within a certain range, and the greater the stiffness, the less conducive to the maglev system stability. When the air spring stiffness increases, increasing the stiffness and damping of the control system appropriately is beneficial for the stability of the maglev system.

Keywords

• maglev train system
• air spring
• stiffness and damping
• stability