基于磁流变技术的三线圈抗蛇行减振器设计与性能研究

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中图分类号：U266；TB535.1 文献标志码：A 文章编号：1000-4939（2025）06-1353-11

Abstract：The anti-yaw vibration devices currently used in high-speed trains are hydraulic dampers，whose damping characteristics cannot be adjusted according to the changes in the vehicle's operating state and environmental conditions，resulting in poor ride quality and stability for the vehicle.A semi-active damper based on magnetorheological technology combined with intelligent control technology can solve this problem.In this paper，a three-coil magnetorheological damper has been developed with adjustable damping characteristics based on the technical specifications of the anti-yaw damper.The multi-physical field of the damper is simulated，and damping performance of the damper is tested under different excitation currents， amplitudes，frequencies，and coil combinations.The results show that the magnetic circuit design of the damper is reasonable and complies with the technical requirements for anti-yaw dampers，with a maximum output force of 46kN and an adjustable dynamic coefficient of 28.In addition，an analysis is conducted on the magnetic field distribution at varying coil spacings.The findings indicate that a critical distance exists between the coils，and the critical distance of this damper is O.69 times the width of the coil，beyond which the magnetic field distribution becomes non-uniform.The change in magnetic flux density at the effective damping channel will stop when a certain part of the magnetic circuit reaches saturation.

Key words ：magnetorheological damper（MRD）； high-speed train；anti-yaw damper; coil spacing

随着列车的运行速度不断提升，人们愈发重视列车在高速运行状态下的安全问题。（剩余15243字）