高温超导磁悬浮轴承的发展现状及前景

发布时间：2017-12-28 23:20

本文关键词：高温超导磁悬浮轴承的发展现状及前景　出处：《中国材料进展》2017年05期 　论文类型：期刊论文

【摘要】：第二类高温超导体的磁通钉扎效应使得超导体在外加磁场中无需主动控制而能稳定悬浮。利用这种无源自稳定悬浮特性,高温超导磁悬浮轴承可以实现部件之间无机械摩擦的高速相对运动,在旋转机械、飞轮储能和交通运输等方面展现出了良好的应用前景。近年来,高温超导磁悬浮轴承的发展在世界范围内取得了令人瞩目的成就,轴承的设计思想、结构和应用环境都得到了相应的拓展。从结构特征角度综述了近年来国内外超导磁悬浮轴承样机的发展现状,重点介绍了西安交通大学的超导磁液复合轴承结构及其在液体火箭中的应用方案;结合该领域的研究现状探讨了超导磁悬浮轴承有待研究的问题和应用前景,指出超导轴承应向复合支撑方向发展以利于推进应用。
[Abstract]:The magnetic flux pinning effect of second kinds of high temperature superconductors makes the superconductor can be suspended steadily without active control in the external magnetic field. Using this passive self stabilizing suspension characteristic, high speed superconducting magnetic bearing can achieve high speed relative motion without mechanical friction between components, showing good application prospects in rotating machinery, flywheel energy storage and transportation. In recent years, the development of high temperature superconducting magnetic bearing has made remarkable achievements in the world, and the design idea, structure and application environment of the bearing have been expanded correspondingly. From the angle of structure reviewed the current development at home and abroad in recent years superconducting magnetic bearing prototype, mainly introduced the superconducting magnetic liquid composite bearing structure of Xi'an Jiao Tong University and its applications in the liquid rocket; combined with the current studies in this field are discussed and the application prospect of superconducting magnetic bearings to be studied, pointed out that the superconducting bearings should be to composite support the direction of development in order to promote the application of.
【作者单位】：西安交通大学现代设计及转子轴承系统教育部重点实验室;
【基金】：国家自然科学基金资助项目(51175408)
【分类号】：TH133.3;TM26
【正文快照】： 1前言轴承作为旋转机械中关键的功能保障部件之一[1],其在机械传动过程中除支撑外,最主要是用来减小部件之间因相对运动产生的摩擦和磨损[2]。一般来说,固体与固体之间的摩擦系数约为0.1~1,固体与液体之间摩擦系数约为10-4~10-3,固体与气体之间摩擦系数小于10-4。根据已有的基

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