摘要
提出一种新型被动径向磁悬浮轴承,它是由盘状转子和定子两大构件组成,在定子上布置着永磁体以便形成沿径向的不均匀磁场,在转子上沿圆周均匀布置了几个导体环以便它在磁场中运动时借助电磁作用,迫使转子始终在其预定中心处运转。论述了这种轴承的工作原理,详细地分析了导体环所受的电磁作用,推导出转子所受电磁力的计算公式,并求出了这种轴承的最优导体环数以及系统稳定性。
This paper presents a new type of passive radial magnetic bearing which is made up of both the sta-tor on which permanent magnets are arranged in order to form a non uniform magnetic field along the radial direction and the disc rotor on which several conductor loops are disposed uniformly at some circumference in order to always rotate the rotor about the prearranged center by dint of electromagnetic action when it moves in the magnetic field. Aiming at this kind of bearing, we introduce its working principle, analyze the electromagnetic force acting on the conductor loops in detail, derive the computing formula of the force acting on the rotor, and find out optimal number of conductor loops on the rotor and discuss its motion stability.
出处
《中国机械工程》
EI
CAS
CSCD
北大核心
2002年第24期2134-2136,共3页
China Mechanical Engineering
基金
国家自然科学基金(50175031)
湖南省自然科学基金(00JJY2049)
湖南省青年基金(00B012)
关键词
被动磁悬浮轴承
等效时变磁场
导体环
稳定性
电动磁悬浮
passive magnetic bearing equivalent time-varying magnetic field conductor loop stability electrodynamic suspension
