대한기계학회논문집A (Transactions of the Korean Society of Mechanical Engineers A)

  • 제37권3호
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  • Pages.359-364
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  • 2013
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  • 1226-4873(pISSN)
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  • 2288-5226(eISSN)
대한기계학회 (The Korean Society of Mechanical Engineers)
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영구자석 스프링과 보이스 코일 구동기를 가진 직선형 진동모터의 설계 및 해석

Design and Analysis of Linear Vibration Motor Equipped with Permanent-Magnet Springs and Voice-Coil Actuators

  • 최정규 (충남대학교 메카트로닉스공학과) ;
  • 유승열 (충남대학교 첨단수송체연구소) ;
  • 노명규 (충남대학교 메카트로닉스공학과)
  • Choi, Jung-Kyu (Dept. of Mechatronics Engineering, Chungnam Nat'l Univ.) ;
  • Yoo, Seong-Yeol (Institute of Advanced Transportation and Vehicle Research, Chungnam Nat'l Univ.) ;
  • Noh, Myounggyu (Dept. of Mechatronics Engineering, Chungnam Nat'l Univ.)
  • 투고 : 2012.08.06
  • 심사 : 2012.10.01
  • 발행 : 2013.03.01
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초록

직선형 진동모터가 휴대전화의 알림용이나 햅틱 인터페이스의 구동기로 적용되려면 빠른 응답속도와 긴 수명을 제공하여야 한다. 본 논문에서는 기존 직선형 진동모터를 개선하여 보이스 코일 구동기와 영구자석 스프링을 이용한 직선형 진동모터를 제시하고, 설계 제작하여 그 가능성을 검증하였다. Halbach 배열의 영구자석에 의해 구동되는 보이스 코일 구동기와 영구자석 간의 반발력을 이용하는 영구자석 스프링을 해석하고 설계하기 위해, 등가전류판 방법과 이미지 방법을 사용하였고, 방법의 적절성을 유한요소해석을 통해 검증하였다. 시작품 모터를 설계하고 제작하고, 실험을 통해 진동모터의 특성을 확인하였다.

In order to use a linear vibration motor for the actuator of a haptic interface, the motor must provide a higher reaction rate and longer service life than typical rotational motors with an eccentric mass. In this paper, we propose a linear vibration motor that is equipped with a voice-coil actuator and permanent-magnet springs. To concentrate the magnetic flux in the actuator, a Halbach-style magnetization pattern is used. Permanent-magnet springs replace mechanical springs to help increase the service life. We use the method of equivalent current sheets and the method of images to analyze and model the proposed vibration motor. These methods are validated using finite element analyses and experiments. A prototype motor is designed and fabricated. Tests with the prototype show the feasibility of the proposed linear vibration motor.

키워드

참고문헌

  1. Nam, Y., Choi, J. and Kang, B., 2002, "Vibration Exciter Design for Flow Resonance with a Displacement Estimator Using strain Gage," Trans. Korean Soc. Mech. Eng. A, Vol. 26, pp. 1874-1881. https://doi.org/10.3795/KSME-A.2002.26.9.1874
  2. Sun, J. and Kim, K., 2012, "Isolation of Vibrations due to Speakers in Audio-Visual Electronic Devices Without Deteriorating Vibration of Speaker Cone," Journal of Mechanical Science and Technology, Vol. 26, pp. 723-730. https://doi.org/10.1007/s12206-011-1227-9
  3. Kim, Y., Kim, H., Kim, E. and Kim, K., 2010, "Isolating Vibration in Miniature Linear Cryogenic Cooler with Tuned Vibration Absorber," Trans. Korean Soc. Mech. Eng. A, Vol.34, pp. 605-609. https://doi.org/10.3795/KSME-A.2010.34.5.605
  4. Hwang, K., Kim, J., Yoo, J. and Kim, J., 2010, "Analysis and Design of Horizontally Vibrating Linear Actuator for Enhanced Vibration Performance of Haptic Mobile Phones," Proc.of KSME Fall Annual Meeting, pp. 1018-1021.
  5. Kwon, D., Yang, T. and Cho, Y., 2010, "The State of the Art in Tactile Actuators and Related Applications," IEEE Industrial Electronics Magazine, June, pp. 36-41.
  6. Bailey, D., Grant, D., Jasso, A., Martin, K., Shahoian, E., Tierling, K. and Vassallo, S., 2007, "Haptic Feedback Using Rotary Harmonic Moving Mass," U. S. Patent, No. 7,161,580.
  7. Chung, S., Hwang, G., Hwang, S., Kang, B. and Kim, H., 2002, "Development of Brushless and Sensorless Vibration Motor Used for Mobile Phones," IEEE Trans. Magn., Vol. 38, pp. 3000-3002. https://doi.org/10.1109/TMAG.2002.803187
  8. Suh, S. H. and Lee, J., 2005, "Analysis of Flat-Type Vibration Motor for Mobile Phones," IEEE Trans. Magn., Vol. 41, pp. 4018-4020. https://doi.org/10.1109/TMAG.2005.855152
  9. Chen, C., Paden, B., Antaki, J., Ludlow, J., Paden, D., Crowson, R. and Bearnson, B., 2002, "A Magnetic Suspension Theory and Its Application to the HeartQuest Ventricular Assist Device," Artificial Organs, Vol. 26, pp. 247-251.
  10. Yoo, S., Kim, W., Kim, S., Lee, W., Bae, Y. and Noh, M., 2011, "Optimal Design of Non-Contact Thrust Bearing Using Permanent Magnet Rings," Int. J. Prec. Eng. Manufac., Vol. 12, pp. 1009-1014. https://doi.org/10.1007/s12541-011-0134-4
  11. Furlani, E. P., 2001, Permanent Magnet and Electromechanical Devices, Academic Press: San Diego, pp. 185-190.