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논문 기본 정보

자료유형
학술저널
저자정보
Dan-Ping Xu (Pusan National University) Yuan-Wu Jiang (Pusan National University) Han-Wen Lu (Pusan National University) Joong-Hak Kwon (EM-TECH) Sang-Moon Hwang (Pusan National University)
저널정보
한국자기학회 Journal of Magnetics Journal of Magnetics Vol.21 No.3
발행연도
2016.9
수록면
387 - 392 (6page)

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초록· 키워드

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Lower flux leakage designs have become important in the development of microspeakers used in thin and miniaturized mobile phones. We propose four methods to reduce the flux leakage of the magnetic circuit in a microspeaker. Optimization was performed based on the proposed approach by using the response surface method. Electromagnetic analyses were conducted using the finite element method. Experimental results are in good agreement with the simulated results obtained in one degree-of-freedom analysis from 100 to 5 ㎑. Both the simulated and experimental results confirm that one of the proposed methods is much more effective in reducing flux leakage than the other methods. In the optimized method, compared with a default approach, the average radial flux density in the air gap decreased only by 5.5%, the maximum flux leakage was reduced by 28.6%, and the acoustic performance at primary resonance decreased by 0.45 ㏈, which gap is indiscernible to the human ear.

목차

1. Introduction
2. Analysis Methods and Discussion
3. Optimization and Discussion
4. Experimental Results and Discussion
5. Conclusion
References

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UCI(KEPA) : I410-ECN-0101-2017-428-001095708