Influence of Air Spring Components on Maglev Train System
Journal Title: Urban Mass Transit - Year 2024, Vol 27, Issue 7
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.
Authors and Affiliations
Hengkun LIU, Quan WANG, Jun TU
Mechanism Analysis and Simulation Study of Closing Overvoltage Fault in EMU Circuit Breaker
Objective The overvoltage caused by circuit breaker closing will aggravate the insulation aging of high voltage equipment when EMU (electric multiple units)passes neutral section. The research on the mechanism and influe...
Disturbance Response and Control of Shield Construction Adjacent to Bridge and High-rise Buildings
[Objective] The tunnel between Shengchanlu Station and Lihuanglu Station on Jinan Metro Line 2 passes in close proximity to the pile foundations of an elevated bridge and the Eurasia Electronics Building complex. To en...
Impact Simulation Analysis of Wind Resistance Brakes on High-speed Train Aerodynamic Performance under Crosswind Conditions
Objective As the train operational speed increases, various braking methods become essential for ensuring high-speed train emergency safety braking. Wind resistance brakes, which complement wheel-rail adhesion brakes, ha...
Dynamics Response Simulation Analysis of Underground Space Semi-suspended Lanes under Double-decker Vehicle Loads
Objective The new prestressed hanging wall semi-suspended lane structure in underground complex offers advantages of aesthetic appearance and large clearance. However, the research on the mechanical properties of the new...
Propagation Law of Structural Vibration in Large Transportation Hub and Vibration/Seismic Isolation Measures
[Objective] Large-scale integrated transportation hub structure is a vital component in urban layout, characterized by significant investment, extensive construction scale, and diverse functionalities. Ensuring the resil...