Title :
Vibration of Permanent Magnet Brushless Machines Having a Fractional Number of Slots per Pole
Author :
Chen, Y. ; Zhu, Z. ; Howe, D.
Author_Institution :
Zhejiang Univ., Hangzhou
Abstract :
In this paper, a method for predicting the electromagnetic vibration of PM brushless motors is presented. It calculates the electromagnetic force on individual stator teeth by the Maxwell stress method, based on 2-D finite element analysis of the electromagnetic field. The resulting radial force contour is then used in an analytical shell model to predict the stator vibration. The method has been validated experimentally and used to predict the vibration of various PM brushless motors with different fractional slot/pole number combinations, such as 9/6, 12/8, 15/10, 12/10, 18/6, etc., on both no load and on load.
Keywords :
Maxwell equations; brushless machines; finite element analysis; machine theory; permanent magnet motors; vibrations; 2D finite element analysis; Maxwell stress method; PM brushless motors; electromagnetic force; electromagnetic vibration; permanent magnet brushless machines; shell model; stator vibration; Brushless machines; Brushless motors; Electromagnetic analysis; Electromagnetic forces; Finite element methods; Magnetic analysis; Permanent magnets; Stators; Stress; Teeth;
Conference_Titel :
Magnetics Conference, 2006. INTERMAG 2006. IEEE International
Conference_Location :
San Diego, CA
Print_ISBN :
1-4244-1479-2
DOI :
10.1109/INTMAG.2006.376220
