Paper Info
Title
Study on Unbalance Magnetic Pull of the motorized spindle under different rotor eccentricities
Abstract
High-speed precision machining is one of the important development directions of modern machining technology, high-speed spindle system is widely used in high-speed machining, and motorized spindle is the main choice of the high-speed machine tool spindle. The electromagnetic force caused by rotor unbalance is one of main vibration sources of motorized spindle. Firstly, the research on the frequency spectrum characteristic of electromagnetic force under different rotor eccentricities is very necessary to suppress electromagnetic vibration. An electromagnetic finite element model was built for a motorized spindle based on Ansoft Maxwell in this paper. The electromagnetic force spectrum variation under the static and dynamic eccentricities is studied. The Unbalance Magnetic Pull(UMP) of the motorized spindle under different rotating speeds and different eccentricities are analysed. The results show that the motorized spindle with the static or dynamic eccentricity both produces new components in the electromagnetic force. Simultaneously, the eccentricity increase positively results in the increase of UMP amplitude. The UMP is constant under the rotor static eccentricity, which has a small impact on rotor vibration, while the frequency of UMP under the rotor dynamic eccentricity is the rotating frequency, which will increase the motorized spindle vibration. Finally, by the experiment the correctness of theoretical analysis and simulation are verified. This work provides a theoretical foundation for the fault diagnosis and dynamic balance of the motorized spindle.
Year
DOI
Venue
2016
10.1109/URAI.2016.7733981
2016 13th International Conference on Ubiquitous Robots and Ambient Intelligence (URAI)
Keywords
Field
DocType
Machine tool motorized spindle,Unbalance Magnetic Pull(UMP),Rotor eccentricity,Finite element analysis,Frequency spectrum analysis
Automotive engineering,Eccentricity (behavior),Dynamic balance,Finite element method,Machining,Rotor (electric),Vibration,Engineering,Amplitude,Machine tool,Structural engineering
Conference
ISSN
ISBN
Citations 
2325-033X
978-1-5090-0822-3
0
PageRank 
References 
Authors
0.34
0
5
Name
Order
Citations
PageRank
Jin Wang100.34
minqing jing221.78
Hongwei Fan302.70
Heng Liu400.68
Bijia Shi500.68