Abstract
Aiming at the problem of unstable hovering of the maglev train on the steel guideway, tests were made on the natural vibration frequencies of this maglev system. Moreover, the authors make the strength calculation, the modal analysis and the interaction analysis between vehicle and the steel guideway. The result shows that the designed pseudo-static loadings of the steel guideway are not enough for the actual dynamic vehicle-guideway interaction. The system stability is related to the second suspension's frequency and damping the controlling system's frequency and damping the track's frequency and damp, and the system's basic parameters (specified balance position, the ratio of vehicles to the guideway, the electrical resistance and the induction of the coil). With the modified stiffness of the guideway frame column, the vehicle/steel guideway system can be stable when the maglev trains are hovering on the steel guideway in the maintenance yard.