A miniature milling spindle with Active Magnetic Bearings
A miniature milling spindle with Active Magnetic Bearings
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DOI:
10.1016/j.mechatronics.2009.11.010
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发表时间:
2010-03-01
期刊:
影响因子:
3.3
通讯作者:
Schmidt, R. H. Munnig
中科院分区:
文献类型:
--
作者:
Kimman, M. H.;Langen, H. H.;Schmidt, R. H. Munnig
This paper describes the design and realization of a miniature milling spindle with Active Magnetic Bearings (AMBs) Permanent magnet biased, reluctance type actuators position the rotor in five Degrees of Freedom (DOF). leaving the rotation unconstrained. A rotordynamic model was developed to expedite the controller design, and enabled modeling of the spindle's performance under the influence of cutting forces. A modal controller, including a negative stiffness compensation scheme, was implemented. A cross-feedback controller partly compensates the gyroscopic effect. The spindle with these controllers has a maximum speed of 150,000 rpm (C) 2009 Elsevier Ltd All rights reserved