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Design of Magnetic Circuit with Minimum Leakage Using Response Surface Methodology

반응표면분석법을 이용한 자계누설 최소화 설계

  • Park, Jin-Hun (School of Mechanical Engineering, Pusan National University) ;
  • Kwon, Jung-Hak (School of Mechanical Engineering, Pusan National University) ;
  • Hwang, Sang-Mun (School of Mechanical Engineering, Pusan National University)
  • Published : 2010.01.01

Abstract

This paper focuses on the design of microspeakers with minimum flux leakage, for use in radiotelegraphy. The response surface methodology (RSM) is applied as the optimization technique for obtaining a large magnetic force and a small flux leakage on diaphragm. The object functions of this optimization are the magnetic force and the flux leakage along three factors; pole piece thickness, magnet grade and yoke thickness, which are determined by the design of the experiment. The magnetic force and the flux leakage are calculated for each condition and optimized by results evaluated with RSM. For a pole piece thickness of 0.9 mm, a magnet grade of N42H and a yoke thickness of 0.75 mm, the magnetic force is satisfied as initial model and flux leakage is decreased to 11.8% than initial model.

Keywords

Microspeaker;Magnetic Circuit;Flux Leakage;Response Surface Methodology

References

  1. Lee, J. H. and Yoo, J. H., 2008, “Optimal Design of an MRI Device Considering the Homogeneity of the Magnetic Field,” KSME(A), Vol. 32, No. 8, pp. 654-659 https://doi.org/10.3795/KSME-A.2008.32.8.654
  2. Hwang, S. M., LEE, H. J., Kwon, J. H., Hwang, G. Y. and Yang, Y. C., 2006, “Development of Combined Permanent Magnet Type Microspeakers Used for Mobile Phones,” KSNVE, Vol. 16, No. 2, pp. 183-189 https://doi.org/10.5050/KSNVN.2006.16.2.183
  3. Lee, S. B., 2005, “Experiment Plan Focussing on Examples with MNITAB,” pp. 273-293
  4. Hong, D. K., Woo, B. C., Kwon, Y. S., Choi, J. G. and Ahn, C. W., 2006, “Optimal Geometric Design of Micro Speaker Diaphragm Using Response Surface Methodology,” Proceedings of the KSME autumn annual conference, pp. 69-74
  5. Kim, T. H., Park, H. S., Lee, S. H. and Oh, Y. K., 2002, “Optimization of Resistance Spot Welding Process for TRIP Sheets using Response Surface Methodology,” Proceedings of the KSME spring annual conference, pp. 1131-1136
  6. Park, J. S., Lee, D. J. and Im, J. B., 2005, “The Study for Construction of the Improved Optimization Algorithm by the Response Surface Method,” KSAF, Vol. 13, No. 3, pp. 22-33