Title :
The Noise and Vibration Analysis of BLDC Motor Due to Asymmetrical Permanent Magnet Overhang Effects
Author :
Kang, Gyu-Hong ; Son, Young-Dae ; Kim, Gyu-Tak
Author_Institution :
GEM-TECH Co., Ltd., Changwon
Abstract :
This paper relates to a vibration analysis of brushless DC (BLDC) motors using the asymmetrical Z-axis overhang of permanent magnet. In BLDC motor, the asymmetrical Z-axis overhang of permanent magnet generates Z-axis thrust which leads to Z-axis eccentric force by commutated current on the rated load and then the Z-axis vibration. The Z-axis thrust ripple, the source of Z-axis vibration under commutated current, is analyzed by using 3-Dimensional Finite Element Method (3-D FEM), and the phenomena of Z-axis vibration is analyzed by experimentation.
Keywords :
brushless DC motors; finite element analysis; permanent magnet motors; 3-dimensional finite element method; BLDC motor; FEM; Z-axis eccentric force; asymmetrical Z-axis overhang; brushless DC motors; commutation; noise analysis; permanent magnet overhang effects; vibration analysis; Brushless DC motors; Commutation; Forging; Integrated circuit noise; Magnetic analysis; Magnetic flux; Magnetic sensors; Rotors; Sensor phenomena and characterization; Torque;
Conference_Titel :
Industry Applications Conference, 2007. 42nd IAS Annual Meeting. Conference Record of the 2007 IEEE
Conference_Location :
New Orleans, LA
Print_ISBN :
978-1-4244-1259-4
Electronic_ISBN :
0197-2618
DOI :
10.1109/07IAS.2007.237
