Study On The Parameters Of Plane Of Mid-speed Maglev Based On Dynamics Analysis

As a new type of ground transportation,the maglev train has the advantages of high speed,strong climbing ability,low energy consumption,and low noise during operation.It fundamentally overcomes the problems of traditional column wheel rail adhesion restrictions,mechanical noise,wear and so on.With the fully operation of Changsha maglev Express Line,both the high-speed maglev and the low-speed maglev in China have been put into engineering use.But,researches on the line standard of the mid-speed maglev are scant,which is between the high-speed maglev and the low-speed maglev.Line in the plane has three elements: straight line,transition curve,and circular curve.Transition curve should consider the way to change and the length to complete for the curvature and the superelevation in the field of the transition curve.The minimum curve radius has influence on the security,comfortableness of the passengers,construction investment and so on,which has a Very important research Value.Since the 1990 s,with the maturation of theory and software of Vehicle-track system dynamics,the method of Vehicle dynamics simulation has been widely used in the research on the technical parameters of the railway line in China and has achieved great success,which provided a solid theoretical support for the Vigorous development of the railway industry.Due to the existence of a certain floating gap between the maglev transport Vehicle and the track,it’s different from the traditional wheel-rail contact relationship and the dynamic interaction between the Vehicle and the track is quite complex.Therefore,it is necessary to study the dynamic performance of the line parameters when studying the line parameters of the maglev.The paper studies the topological structure of the system of the maglev train based on the Vehicle-line dynamic theory.And the reasonable Vehicle-line dynamic simulation model of the mid-speed maglev is established by SIMPACK.By the way of the quasi-static method,the range of the parameters of the planar curve is selected.Then,the relationship between the curve parameters and the dynamic characteristics of Vehicle-line is explored under different conditions.According to the evaluation index of the comfortableness,some suggestions are given.