永磁轴承承载能力的数值分析及稳定性研究  

Numeric Analysis on Bearing Capacity and Study on Stability of Permanent Magnetic Bearing

作　　者：张俊红[1] 孙少军 郭军华[1] 

机构地区：[1]天津大学机械工程学院,天津300072 [2]潍柴动力股份有限公司,潍坊261001

出　　处：《机床与液压》2005年第3期95-97,共3页Machine Tool & Hydraulics

摘　　要：在分析一类高速永磁轴承工作原理的基础上,根据磁库仑定律建立其轴颈轴承承载力模型。并据此分析出轴承 承载力与偏心距及剩磁强度间的关系,由此提出一种提高轴承承载能力的途径。同时考虑因转子质心与几何中心的偏移而 造成转动时产生的离心力,分析了高速运转下转子的运动稳定性问题。此举为高速永磁转子-轴承系统的维修与制造奠定 了一个良好的基础。Based on the analysis of the working principle a type of high-speed permanent magnetic bearing,bearing capacity model was founded on Coulomb’s Law.The relationship between bearing capacity,eccentricity and remanence intensity was analyzed,thereby the way to develop bearing capacity was put forward.At the same time,with the consideration of eccentricity due to the excursion between the centroid of rotor and geometric center,the problem of the stability of rotor in the high speed was analyzed.The researches provide a good base for the maintenance and manufacture of high-speed permanent magnetic bearing.

关 键 词：永磁轴承 承载力 数值分析 稳定性分析 

分 类 号：TH113.1[机械工程—机械设计及理论]