2025/01/29 by Liang Shi, Shi Liang, Mingda Zhai +1 · 9 citations
Engineering · #Acoustics #Automotive engineering #Civil and Geotechnical Engineering Research #Coupling (piping) #Electrical engineering #Engineering #Maglev #Magnet #Magnetic Bearings and Levitation Dynamics #Magnetic levitation #Mechanical engineering #Physics #Structural engineering #Track (disk drive) #Vibration #Vibration control
paper · doi:10.1109/tvt.2025.3535621
published in IEEE Transactions on Vehicular Technology 74(7), 10282-10296 (Institute of Electrical and Electronics Engineers)
openalex publication_date 2025/01/29 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/26
The high-speed maglev train adopts active control through the suspension unit to maintain the specified distance above the track. In the presence of flexible track conditions, even if the train is not running, the train-track coupling vibration may occur. The research focuses on analyzing the coupled vibration of the train-track system under elastic track conditions, establishing a simplified and reasonable model of the coupled vibration, and devising a controller with pre-compensation and full-state feedback to ensure closed-loop stability and accurate reference tracking. The research further investigates the impact of various factors on the coupled vibration by modifying key parameters for obtaining root locus plots. Numerical simulation analysis is employed to assess the influence of control parameters on the coupled vibration. Based on the law of the influence of the control parameters, the suppression of the coupled vibration of the system was successfully achieved by adjusting the control parameters in the event of vehicle-track parameter mismatch. Finally, experiments were conducted on the Qingdao high-speed maglev train to verify the effectiveness of the proposed model and full-state feedback control algorithm.