Research on Hybrid Damping Skyhook Semi-Active Control of High-Speed Trains

In order to improve the adaptability of high-speed trains to the changes of their own parameters and service environment, the inertial damper skyhook semi-active control algorithm with carbody acceleration as control feedback is proposed. However, the algorithm using acceleration as the control quantity has defects in suppressing the low-frequency vibration of the carbody. Therefore, a hybrid damping skyhook control algorithm is proposed, which uses the inertial damper skyhook control to suppress the medium and high-frequency vibration of the carbody, and uses the skyhook control to improve the low-frequency vibration performance. A horizontal-vertical coupling vehicle dynamics model of a high-speed train is established in Simpack, and then a co-simulation system is established by combining Matlab/ Simulink. The simulation analysis is carried out through the measured track irregularity excitation. The results show that hybrid damping skyhook control can effectively suppress the lateral and vertical vibration of the carbody in a wide frequency range, and improve the ride quality of the train.