한국소음진동공학회:학술대회논문집 (Proceedings of the Korean Society for Noise and Vibration Engineering Conference)
- 한국소음진동공학회 2008년도 춘계학술대회논문집
- /
- Pages.212-217
- /
- 2008
- /
- 1598-2548(pISSN)
에어컨 팬 BLDC 전동기의 음향공진에 관한 연구
Study on Acoustic Resonance of Air-Conditioner Fan BLDC Motor
- 발행 : 2008.04.17
초록
Acoustic noises generated during motor operation in mechanical system are from electromagnetic, mechanical, aerodynamic, and electrical sources. For identification of mechanical noise origins, misalignment, unbalance, fan shape, resonance, and vibration modes have been extensively considered to describe noise behavior. An experiment-based approach as well as a mathematical approach needs to be adopted for a realistic study into noise and vibration of the motor, because motor noise characteristics differ from type to type due to various noise sources. In this paper, a brushless DC motor for air-conditioner fan is analyzed by finite element method to identify noise source, and the analysis results are verified by experiments, and sensitivity analysis is performed by design of experiments.