Investigation on Dynamic Response Properties of High-Tc Superconducting System: Application for the Maglev Test Vehicle

Abstract

In this paper, we present a simulation process of the melt-texture YBCO high-temperature superconductor (HTS) bulk levitated over the permanent-magnet (PM) guideway, and further experiment also been built to analyze the dynamic behavior of HTS. The relation between suspension force and amplitude of the levitation system under single-degree of freedom vibration environment was investigated, and stiffness was acquired based on the experiment. Besides, equation of motion of the suspension system was presented in this paper, and with an attempt to analyze and predict damping properties of HTS in given dynamic conditions. The obtained simulation results of the suspending motion behavior also prove that high damper on the levitation body could strengthen the levitation system's capacity of resisting the vibration impact.

Study on vibration characteristics of suspension frame system for high temperature superconducting flux pinned maglev train under track irregularity harmonic excitation

“…Moon et al [14][15][16][17] established a vertical nonlinear dynamic model of maglev system and studied the influence factors of the system vibration. Yang et al [18][19][20] studied the maglev launch system by applying external excitation, and found that the hysteresis effect led to the energy loss in the vibration process. Yang et al [21] studied the vibration characteristics of maglev system under various external excitation by way of a three-dimensional multi-physical field coupling model.…”