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http://dx.doi.org/10.5050/KSNVE.2012.22.3.208

Sound Source Investigation of Outer Rotor BLDC Motor  

Lee, Chang-Min (LIG 넥스원(주))
Shin, Young-Hun (LIG 넥스원(주))
Moon, Jung-Won (LIG 넥스원(주))
Publication Information
Transactions of the Korean Society for Noise and Vibration Engineering / v.22, no.3, 2012 , pp. 208-213 More about this Journal
Abstract
With great advancement of the automobile functions, environmental factors become important performances, especially noise. This paper investigates noise sources of outer rotor type BLDC motor using in the air-conditioner of the automobiles. To this end, this paper is analyzed two viewpoints, structural and electromagnetic causes. Structural analysis is conducted through modal test and analysis. For modal analysis, 3D finite element analysis is carried out using commercial program ansys. Electromagnetic causes are analyzed from local force that is computed by Maxwell stress tensor method. Local force excites structure of motor directly. Finally, correlation analysis is performed to determine effect between noise causes.
Keywords
BLDC Motor; Kinematic Energy; Local Force; Modal Analysis;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
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2 Kwon, J. H. and Kim, K. S., 2009, Effect of the Number of Slots on the Acoustic Noise from BLDC Motors, Transactions of the Korean Society for Noise and Vibration Engineering, Vol. 19, No. 8, pp. 759-763.   DOI
3 Kenneth, G. M., 1995, Vibration Testing, John Wiley & Sons, Inc., New York.
4 Bang, K. C., Kim, K. S., Kwon, J. H., Ree, Y.-U. and Hwang, S.-M., 2008, Analysis of Outer Rotor Type BLDC Motor Vibration Characteristics According to Slot Combination, Proceedings of the KSNVE Annual Spring Conference, pp. 196-201.