Electromagnetic Analysis of a Flat-Type Proportional Solenoid by the Reluctance Method

  • Hong, Yeh-Sun (Faculty of Aerospace and Mechanical Engineering, Hankuk Aviation University) ;
  • Kwon, Yong-Cheol (Graduate School of Aerospace and Mechanical Engineering, Hankuk Aviation University)
  • Published : 2006.04.29

Abstract

In this study, the electromagnetic characteristic of a flat-type two-dimensional proportional solenoid were analyzed by the magnetic reluctance method. The magnetic equivalent circuit equation for the solenoid was derived by modeling the reluctance of air gaps and magnetic structural components such as pole core, armature and yoke. It was solved iteratively because of the nonlinear magnetization properties of iron parts. The solutions showed good agreement with experimental data. Based on the magnetic equivalent circuit equation, the influence of design parameters on force-to-armature displacement curves was mathematically derived and experimentally verified. In this way, dominant design parameters could be analytically determined.

Keywords

References

  1. Magnet-Schultz, 'Products catalog,' 2002
  2. Ryu, S. B. and Hong, Y. S., 'Design and Experiment of a Miniature 4/3-way Proportional Valve for a Servo-Pneumatic Robot Hand,' J. of the Korean Society of Precision Engineering, Vol. 15, No. 12, pp. 142 - 147, 1998
  3. Hong, Y. S., Ha, D. H. and Yeom, M. K., 'Design of a Twodimensional Proportional Solenoid for Miniature Directional Control Pneumatic Valves,' KSME Int. J. Vol. 17, No. 7, pp. 978-985, 2003
  4. Song, C. S., 'Study of an Electro-Hydraulic Proportional Compound Valve,' Ph. D. Thesis, KAIST, 1980
  5. Lee, S. H., Jung, K. S. and Baek, Y. S., 'Switched Reluctance Contact-Free Linear Actuator Using Attractive Magnetic Forces,' J. of the Korean Society of Precision Engineering, Vol. 20, No. 10, pp. 47 - 55, 2003
  6. Lee, S. H. and Baek, Y. S., 'Modeling and Analysis of Electromagnets for Magnetic Suspension System,' J. of the Korean Society of Precision Engineering, Vol. 20, No. 5, pp. 180-188, 2003
  7. Choi, D. J., Rim, C. T. and Kim, S. H., 'Modeling of an Inductive Position Sensing System based on a Magnetic Circuit and its Analysis,' J. of the Korean Society of Precision Engineering, Vol. 18, No. 6, pp. 93-101, 2001
  8. Roters, H. E., 'Electromagnetic Devices,' New York, John Wiley & Sons Inc., 1964