Abstract
The guidance control system of the high-speed maglev enable that the maglev can travel along the center line of track. When the maglev passes through curve, the guidance control system also provides guidance force. When the maglev operates on the track, the friction between guidance electromagnet and track happens sometimes. This problem will pose a great threat to the safety of maglev running. However, other studies have failed to reflect the actual operation very well. In order to give a reasonable explanation for problems happened in actual test, the dynamics model of the guidance control system in high-speed maglev is established in this paper. The curve operation simulation was carried out, and the reason of the friction problem was analyzed through the results of simulation. Finally, an actual running test was carried out. The result of test shows that the high-speed maglev guidance control model established in this paper is effective. This model can provide an platform for analyzing the motion of guidance control units of the high-speed maglev train, further provide a model reference for the design and optimization of the control algorithm.
Highlights
Compared with the high-speed wheel-rail transportation system, the high-speed maglev has the advantages of smaller turning radius, lower energy consumption, lower mechanical wear, more safety and easy maintenance [1]–[5]
In this paper, first of all, we analyzed the structure of the high-speed maglev train guidance system, and established a parametric mathematical model for the main components
A dynamics simulation model of the whole guidance system was established; The process of the high-speed maglev train passing through a curve was simulated to obtain the working state of the guidance system
Summary
Compared with the high-speed wheel-rail transportation system, the high-speed maglev has the advantages of smaller turning radius, lower energy consumption, lower mechanical wear, more safety and easy maintenance [1]–[5]. DYNAMICS MODELING PROCESS When the train runs at a constant speed without the external interference of the vehicle system and the relative movement between the rigid bodies and the track, the traction movement of each rigid body along the track’s longitudinal direction can be regarded as moving together following the track coordinate system ornxrnyrnzrn(n = 1 ∼ 7)shown in Fig.. In this figure, the origin of the coordinate system orn(n = 1, 2, . It is known that the translation and rotation transformation relationships between the inertial coordinate system, the track centerline coordinate system, the track coordinate system and the rigid body coordinate system in Fig. are as follows o0 x 0 y0 z0
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