Active Magnetic Bearing Technology Development in High-Speed Motorized Spindles

doi:10.3901/JME.2021.13.001

Abstract

Abstract: High speed motorized spindles (HSMS) are core components for high-speed precision machine tools, and active magnetic bearing (AMB) technology is the foundation for AMB levitated HSMS. After decades of development, plenty of study cases are published in the AMB HSMS field, however the extensive application of the spindles is still absent in high-speed machine tools. The history of AMB spindles is reviewed, and the main obstacles for engineering application of the AMB spindles are analyzed. The key technologies of the AMB spindles are thoroughly reviewed from the perspectives of AMB loading capacity, system dynamics modelling, AMB controller design and control system hardware. The AMB spindles development tendency is proposed from following aspects:high-speed light loading machining, ultra-precision gas-magnetic hybrid levitation, high flux core material, and novel control hardware such as FPGA, amplifiers, and sensors.

Key words: active magnetic bearing, high-speed motorized spindles, dynamics modelling, control system

CLC Number:

XIONG Wanli, SUN Wenbiao, LIU Kan, XU Minghua, PEI Ting. Active Magnetic Bearing Technology Development in High-Speed Motorized Spindles[J]. Journal of Mechanical Engineering, 2021, 57(13): 1-17.

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