| Several traffic lines is planed to apply high-speed maglev system in China. So it is necessary and feasible to decide the optimum design parameters based on vehicle-line coupling dynamics. This thesis tries to find out the relation of response and routine or structure in order to improve design quality.In the high-speed maglev system stimulating factor can be classified as follows, one comes from random displacement and deformation of track, the others include routine changes which is inevitable in routine design on direction or altitude and structural type, so can be called systemic displacements. Maglev system must make passenger feel comfortable;ensure the safety and dynamics stability of track structure as well. The design parameters have important influence on line-location, construction, project investment, operation expenses, comfortableness and traffic safety, etc. The intensity of systemic displacements lies on design parameters and track structure, it is necessary to choose the two factors according to the view of coupling dynamics.In this thesis, a maglev vehicle-guideway coupling dynamics numeral simulation model was set up according to Transrapid 08 maglev system. Dynamic response of maglev train and guideway was simulated and analyzed. This model can be expand to all DOF model further more.The concept of systemic displacement was presented for first time, in the simulation of train body's response aroused by systemic displacement, the phenomenon was found that frequency of vertical vibration is equal to that train go through joint of girders. It proved that systemic displacement is stimulating factor besides random displacement.When centrifugal force reaches a certain value coupling cross vibration which forms high frequency of train body response caused by systemic displacement occurs, it should be fully estimated in the procedure of design. The same as theoretical analysis result, numerical simulation shows sine transition curve has better behavior.
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