JOURNAL OF SHANDONG UNIVERSITY (ENGINEERING SCIENCE) ›› 2012, Vol. 42 ›› Issue (3): 133-137.

• Articles • Previous Articles     Next Articles

Analysis of beat vibration phenomenon in the AMB spindle

BIAN Bin1, LIU Shu-qin1, HE Si-yan2, LI De-guang1   

  1. 1. School of Electrical Engineering, Shandong University, Jinan 250061, China;
    2. Department of Automation Engineering, Shandong College of Electronic Techndogy, Jinan 250200, China
  • Received:2011-12-30 Online:2012-06-20 Published:2011-12-30

PDF (PC)

1584

Abstract:

In order to reduce the effect of the beat vibration phenomenon on the machining accuracy of the highspeed precision grinder active magnetic bearing spindle, its own sensor and digital signal processing components of the magnetic bearing were used to observe and measure the beat vibration without other equipment being attached. Time domain analysis, frequency domain analysis and wavelet transform were applied to extract the characteristics of the vibration signal. The analysis showed that the beat vibration phenomenon was caused by rotor mechanical imbalance and the rotor dynamic eccentricity. Based on the mechanism analysis of the beat vibration in the magnetic bearing electric spindle, the active control could be used to adjust the spindle dynamic characteristics, and therefore to realize the suppression of beat vibration phenomenon, the stability and precision of the magnetic levitation high-speed precision grinder spindle system could be effectively improved.

Key words: beat vibration, magnetic bearing, spindle, wavelet analysis, active control

[1] CHENG Xin, ZHANG Lin, HU Yefa, CHEN Qiang, LIANG Dian. Fault diagnosis of electromagnetic coil in active magnetic bearing based on current characteristics [J]. JOURNAL OF SHANDONG UNIVERSITY (ENGINEERING SCIENCE), 2018, 48(4): 94-101.
[2] CHENG Xin, LIU Han, WANG Bo, LIANG Dian, CHEN Qiang. A fault-tolerant control architecture for active magnetic bearing based on dual core processor [J]. JOURNAL OF SHANDONG UNIVERSITY (ENGINEERING SCIENCE), 2018, 48(2): 72-80.
[3] CHEN Rui, LI Hongwei, TIAN Jing. The relationship between the number of magnetic poles and the bearing capacity of radial magnetic bearing [J]. JOURNAL OF SHANDONG UNIVERSITY (ENGINEERING SCIENCE), 2018, 48(2): 81-85.
[4] TIAN Jing, LI Hongwei, CHEN Rui, YU Wentao. Structural optimization and finite element analysis of a type of axial AMBs [J]. JOURNAL OF SHANDONG UNIVERSITY (ENGINEERING SCIENCE), 2018, 48(2): 107-113.
[5] GUAN Yong, LI Hong-wei, LIU Shu-qin*. System design of magnetic bearings in an axial-flow artificial blood pump [J]. JOURNAL OF SHANDONG UNIVERSITY (ENGINEERING SCIENCE), 2011, 41(1): 151-155.
[6] WANG Yong, XIE Yudong. Gas control technology of largeflow pipe [J]. JOURNAL OF SHANDONG UNIVERSITY (ENGINEERING SCIENCE), 2009, 39(2): 70-74.
Viewed
Full text


Abstract

Cited
  Shared   
  Discussed   
No Suggested Reading articles found!
Copyright 2018 © Editorial office of Journal of Shandong University (Engineering Science)
Supported by Beijing Magtech Co.Ltd