一种非完全约束磁悬浮轴承的建模
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摘要
对非完全约束磁悬浮轴承系统进行建模,研究磁悬浮轴承边界效应及其侧向电磁力特性,分析系统在特定方向上的力学特性,并对系统进行试验验证。结果表明:侧向电磁力不能忽略,其具有支承刚度和阻尼特性,可在一定程度上抑制系统在非完全约束方向上的外部扰动力。
The modeling is carried out for incomplete constrained magnetic bearing system,and the boundary effect and characteristics of lateral electromagnetic force are studied for the bearings. The mechanics characteristics of system are analyzed in a certain direction,and the system is verified by experiments. The results show that the lateral electromagnetic force can be unneglected,and the external disturbance force of system in incomplete constrained direction is able to be suppressed to a reasonable degree due to supporting stiffness and damping characteristics of lateral electromagnetic force.
The modeling is carried out for incomplete constrained magnetic bearing system,and the boundary effect and characteristics of lateral electromagnetic force are studied for the bearings. The mechanics characteristics of system are analyzed in a certain direction,and the system is verified by experiments. The results show that the lateral electromagnetic force can be unneglected,and the external disturbance force of system in incomplete constrained direction is able to be suppressed to a reasonable degree due to supporting stiffness and damping characteristics of lateral electromagnetic force.
引文
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[3]钱坤喜,王颢,茹伟民,等.陀螺效应使永磁悬浮心脏泵稳定平衡[J].机械设计与研究,2006,22(4):89-90,110.
[4] FUJISAKI K. Application of electromagnetic force to thin steel plate[C]∥Proceedings of the 34th Industry Applications Conference,2002:864-870.
[5]李奇南.钢板磁悬浮系统控制[D].杭州:浙江大学,2010.
[6] SILVA I,HORIKAWA O. An attraction-type magnetic bearing with control in a single direction[J]. IEEE Transactions on Industry Applications,2000,36(4):1138-1142.
[7] KOICHI O,TOMOHIRO O,TOSHIYUKI M. 2 DOF noncontact magnetic suspension system:a feasibility study[J].International Journal of Applied Electromagnetics and Mechanics,2014,45:627-632.
[8] SKRICKA N,MARKERT R. Improvements in the integration of active magnetic bearings[J]. Mechatronics,2002,12(8):1059-1068.
[9] KLUYSKENS V,DEHEZ B,AHMED H. Dynamical electromechanical model for magnetic bearings[J]. IEEE Transactions on Magnetics,2007,43(7):3287-3292.
[10]张钢,殷庆振,蒋德得,等. 5自由度磁悬浮轴承-转子系统非线性动力学研究[J].机械工程学报,2010,46(20):15-21.
[11]王晓亮.磁悬浮直线运动平台的结构设计与优化[D].济南:山东大学,2013.
[12] ZHANG C,TSENG K J,NGUYEN T D,et al. Stiffness analysis and levitation force control of the active magnetic bearing for a partially-self-bearing flywheel system[C]∥2010 IEEE International Journal of Applied Electromagnetics and Mechanics,2010:229-242.
[13] SUBHRA PAUL,JONATHAN Z. Bird. Analytic 3-D eddy current model of a finite width conductive plate including edge-effects[J]. International Journal of Applied Electromagnetics and Mechanics,2014,45:535-542.
[14] SCHWEITZER G,MASLEN ERIC H,BLEULER H,et al. Magnetic bearings:theory,design,and application to rotating machinery[M]. Berlin Heideberg:SpringerVerlag,2013.