Title :
Analysis of beat vibration for magnetic bearing spindle of high-speed precision grinding machine
Author :
Bian, Bin ; Liu, Shuqin ; Li, Deguang
Author_Institution :
Dept. of Electr. Eng., Shandong Univ., Jinan, China
Abstract :
In the spindle system supported by active magnetic bearing (AMB), beat vibrations will occur. The beat vibration will affect the stability of high-speed rotation and precision of grinding in the high-speed precision grinding spindle system with AMB spindle. In this paper, beat vibration phenomena is observed by inner sensor of magnetic bearing in the high-speed precision grinder spindle system, without any external equipment. Experiments are designed to determine the origin of the beat vibration. The mechanism of the beat vibration is analyzed. This study offers the foundation for the AMB´s active control of the spindle rotor to suppress the beat vibration.
Keywords :
grinding; grinding machines; machine bearings; machine tool spindles; magnetic bearings; vibrations; AMB spindle; active magnetic bearing; beat vibration; high-speed precision grinder spindle system; high-speed precision grinding machine; high-speed rotation; inner sensor; magnetic bearing spindle; Electrical engineering; Grinding machines; Induction motors; Magnetic levitation; Vibrations; beat vibration; grinding machine; magnetic bearing; spindle;
Conference_Titel :
Consumer Electronics, Communications and Networks (CECNet), 2011 International Conference on
Conference_Location :
XianNing
Print_ISBN :
978-1-61284-458-9
DOI :
10.1109/CECNET.2011.5768511
