三点式磁悬浮转向架的研究

发布时间：2018-01-19 11:04

本文关键词： 磁悬浮转向架三点式环形封闭导轨导向力承载力　出处：《南京航空航天大学》2014年硕士论文　论文类型：学位论文

【摘要】：本文以一种新型的三点式磁悬浮转向架为研究对象，该转向架拟用于本课题组正在研制的磁悬浮移动人行道系统中。文中介绍了该新型磁悬浮转向架的结构，通过理论分析确定了在新型转向架中采用全电磁支承方案及被动导向方式，分析了不同的工况下转向架跟踪导轨并在导轨上稳定悬浮的工作原理。通过对比分析转向架中不同的电磁铁布置方式，确定了在转向架中采用非错位的方式安装电磁铁。以新型磁悬浮转向架的各项参数为依据，设计了转向架可以顺利通过的环形封闭导轨，该导轨包括直线段、圆曲线段以及两者之间曲率逐渐变大的缓和曲线段。圆曲线段导轨的设计主要是确定导轨中心处圆弧的半径，缓和曲线段导轨的设计主要包括导轨中心处曲线线型的选择和曲线长度的确定。综合考虑转向架悬浮通过环形封闭导轨时转向架和导轨之间的几何约束、转向架的受力平衡以及悬浮控制系统的稳定性，通过理论计算与分析确定了实验所用新型转向架模型可顺利通过的圆曲线段导轨中心处圆弧的最小半径约为1.1m；缓和曲线段导轨中心处曲线段长度的最小允许值约为2m，曲线的线型为正弦曲线。通过对实验台中悬浮控制系统的物理参数进行调节，实现了三点式磁悬浮转向架在导轨上的静态稳定悬浮，，并对转向架进行了横向静态力和竖直方向承载力的测量实验。通过实验测量可以得到该新型磁悬浮转向架在直线段导轨上失稳前其横向导向力随横向偏移量的变化而变化的曲线图以及在实验条件下转向架可以承受的最大载荷约为13.1kg。
[Abstract]:This paper takes a new three-point magnetic suspension bogie as the research object. The bogie is intended to be used in the maglev moving sidewalk system which is being developed by our team. The structure of the new magnetic suspension bogie is introduced in this paper. Through theoretical analysis, the full electromagnetic support scheme and passive steering mode are determined in the new bogie. The working principle of the bogie track tracking and stable suspension on the guideway under different working conditions is analyzed, and the different electromagnet arrangement modes in the bogie are compared and analyzed. According to the parameters of the new maglev bogie, the annular closed guideway which the bogie can pass smoothly is designed, which includes straight line section. The circular curve segment and the transition curve segment in which the curvature between them gradually becomes larger. The design of the guide rail in the circular curve section is mainly to determine the radius of the arc at the center of the guide rail. The design of transition curve rail mainly includes the choice of curve profile at the center of guide rail and the determination of curve length. The geometric constraints between bogie and guide rail are considered when bogie suspends through annular closed guideway. The force balance of bogie and the stability of suspension control system. Through theoretical calculation and analysis, the minimum radius of the arc at the center of the guide rail of the circular curve segment is determined to be about 1.1 m, in which the new type of bogie model used in the experiment can pass smoothly. The minimum allowable value of the length of the curve at the center of the guide rail of the transition curve is about 2 m, and the curve line is sinusoidal. By adjusting the physical parameters of the suspension control system in the experimental platform, the static and stable suspension of the three-point magnetic suspension bogie on the guide rail is realized. The lateral static force and vertical bearing capacity of the bogie are measured. The variation of the transverse guiding force with the lateral deviation of the new maglev bogie can be obtained before the bogie is unstable on the straight section of the guideway. The maximum load of the bogie under the experimental conditions is about 13.1 kg.
【学位授予单位】：南京航空航天大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U491.226

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