標題: PERFORMANCE LIMITS OF PERMANENT-MAGNET-BIASED MAGNETIC BEARINGS
作者: LEE, AC
HSIAO, FZ
KO, D
交大名義發表
機械工程學系
National Chiao Tung University
Department of Mechanical Engineering
關鍵字: MAGNETIC BEARINGS;PERMANENT MAGNETS;ELECTROMAGNET;LOAD CAPACITY;MAGNETIC FORCE;PERFORMANCE LIMITS
公開日期: 1-十二月-1994
摘要: An active magnetic bearing with electromagnets only is unavoidably bulky and power-consuming. These shortcomings can be remedied by using permanent magnets as the source of bias flux. Unlike the hybrid magnetic bearings with the same flux path for both permanent magnets and electromagnets, so-called coplanar PEMBs, a noncoplanar PEMB with permanent magnets located between two sets of electromagnets, which are placed around the periphery of the shaft, cannot be regarded as equivalent to a pure electromagnet magnetic bearing. This paper analyzes the performance limits, such as maximum static bearing force, force slew rate, displacement sensitivity, and dynamic load capacity, of the non-coplanar PEMBs. We also campare the characteristics of this type of magnetic bearing to the co-plane PEMBs and point out their differences. Investigation of these performance limits enable better utilization of permanent-magnet-biased magnetic bearings and offer useful guidelines for the design of this type of magnetic bearing.
URI: http://hdl.handle.net/11536/2217
ISSN: 1340-8062
期刊: JSME INTERNATIONAL JOURNAL SERIES C-DYNAMICS CONTROL ROBOTICS DESIGN AND MANUFACTURING
Volume: 37
Issue: 4
起始頁: 783
結束頁: 794
顯示於類別:期刊論文