Switched Reluctance Contact-Free Linear Actuator Using Attractive Magnetic Forces

자기 흡인력에 의한 비접촉식 SR 형 선형 구동기

  • Published : 2003.10.01

Abstract

In the development of positioning device for precision manufacturing and measuring, the friction from mechanical contact causes serious decrease of performance. In this study, we studied about variable reluctance type contact-free linear actuator to overcome drawbacks from friction. In the view of electromagnetics, we analyzed and derived theoretical magnetic force equation and designed structure for generating suspension and propulsion force simultaneously. In the view of dynamics, we derived equation of motion and identified the stability of the system. Finally, we verified the feasibility of the proposed system.

Keywords

References

  1. Michael, A., Soltz, Y., Lawrence Yao and Jehuda Ish-Shalom, 'Investigation of a 2-D Planar Motor based Machine Tool Motion System,' International Journal of Machine Tools and Manufacture, Vol. 39, Issue 7, pp. 1157-1169, 1999 https://doi.org/10.1016/S0890-6955(98)00085-6
  2. Kim, Yon-Jong, David, L. T., Jeffrey, H. L., 'Modeling and Vector Control of Planar Magnetic Levitator,' IEEE Trans. On Indstry Applications, Vol. 34, No. 6, pp. 1254-1262, 1998 https://doi.org/10.1109/28.738999
  3. Jung Kwang Suk and Baek Yoon Su, 'Precision Stage Using a Novel Contact-Free Planar Actuator Based on Combination of Electromagnetic Forces,' Trans. of KSME A, Vol. 25, No. 11, pp. 1863-1872, 2001
  4. Jung Kwang Suk, Lee Sang Heon and Baek Yoon Su, 'Feasibility Study of General-purpose Precision Stage Using A Novel Contac-Free Surface Actuator Based on Magnetic Suspension Technology,' Trans. of KSME A, Vol. 26, No. 3, pp. 452-460 https://doi.org/10.3795/KSME-A.2002.26.3.452
  5. Cheng-Tsung Liu and Nywen Sheu, 'Optimal Pole Arrangement Design of a Linear Switched-Reluctance Machine for Magnetic Levitation and Propulsion System,' IEEE Transaction on Magnetics, Vol. 32, No. 5, pp. 5067-5069, 1996 https://doi.org/10.1109/20.539492
  6. Ju Jin and Toshiro Higuchi, 'Direct Electrostatic Levitation and Propulsion,' IEEE Transaction on Industrial Electronics, Vol. 44, No. 2, pp. 234-239, 1997 https://doi.org/10.1109/41.564162
  7. Nasar, S. A. and Unnewehr, L. E., Electromechanics and Electric Machines, John Wiley & Sons, Inc., 1983
  8. Lee, S. H., Jung, K. S. and Baek, Y. S., 'Vibration Suppressing Method of Variable Reluctance Type Actuator,' Proceedings of the fourth Korea-Japan Symposium of Frontiers in Vibration Science and Technology, pp. 38-39, 2001
  9. Craig, J. J., Introduction to Robotics Mechanic and Controll, Addison-Wesley Publishing Company, 1989