Study Of The Vibration Characteristics Of The Side-suspended High Temperature Superconductor Maglev System

The superconducting maglev train is mainly using superconductors at very low temperatures will produce characteristic completely anti magnetic and resistive.In the case of high temperature superconducting magnetic levitation system,the flux pinning characteristics of high temperature superconducting materials can make the superconducting magnetic levitation system do not need energy input and control,which ensure a continuous and stable region and the use of simple can be achieved,can be used in the field of transportation.So far,many teams at home and abroad have studied it.It’s an important problem that the HTS Maglev system can run steadily at high speed as conveyance.However,it is difficult for many research teams to build large systems with large venues and funds.Therefore,the superconducting and new energy development center of Southwest Jiao Tong University has established the side-suspended HTS maglev circular test track system,the system is made of circular orbit,which effectively solves the above difficulties.This structure is used to overcome gravity by guiding force,to provide centripetal force with suspension force,and can overcome the problem of insufficient centripetal force in high speed rotation effectively.However,due to the parameters of the magnetic suspension system,the magnetic field fluctuations caused by the inhomogeneity of the magnetic field which caused by the manufacture and installation errors of the track,the external interference will affect the operation of the system.Therefore,it is necessary to study the vibration characteristics of the new system in order to make the system operate safely and stably.In this paper,the vibration characteristics of the system are studied by building the experimental platform,aiming at the new high temperature superconducting magnetic levitation system.The influence of the resonance again,different side gap,vibration amplitude and load on the levitation height of the Side-Suspended HTS maglev system is investigated;At the same time,the influence of lateral clearance,vibration amplitude and vibration frequency on the levitation force is studied.Based on the experimental results of suspension height and suspension force,the causes of the results are analyzed,which can provide some reference for the safe and stable operation of the system.The first chapter mainly introduces the development of HTS Maglev,expounds the principle and operation principle of self-stable levitation of HTS Maglev train,introduces the vibration research development on high temperature superconducting magnetic levitation system,and finally introduces the research content and purpose.The second chapter introduces the research background of this paper,introduces the experimental platform,and describes the important equipment.The third chapter mainly through experimental simulation to study the influence of the resonance again,different side gap,vibration amplitude and load on the levitation height of the Side-Suspended HTS maglev system.For each experiment are described in detail and the experimental results in the theoretical analysis.The fourth chapter mainly through the simulation experiment to study the system after a fixed frequency vibration,the influence of side clearance,vibration amplitude and frequency on levitation force.For each experiment are described in detail and the experimental results in the theoretical analysis.