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A Study on the Application of the Cutout Piston for the Improvement of the MR Damper's Control Effect

MR 댐퍼의 제어 효과 향상을 위한 Cutout 피스톤 적용에 관한 연구

  • 김종혁 (한국항공대학교 일반대학원 항공우주 및 기계공학과) ;
  • 배재성 (한국항공대학교 항공우주 및 기계공학부) ;
  • 황재혁 (한국항공대학교 항공우주 및 기계공학부) ;
  • 홍예선 (한국항공대학교 항공우주 및 기계공학부)
  • Received : 2010.12.13
  • Accepted : 2011.04.20
  • Published : 2011.06.20

Abstract

This paper is concerned with a study on the control effect of the MR damper using the cutout piston. The MR damper has passive damping force by the oil pressure and controllable damping force by the magnetic effect. As the velocity of the MR damper's piston increases the passive damping force increases and the ratio of the controllable damping force to the total damping force is decreased. Consequently, the control performance of the MR damper is reduced according to the increase of the velocity. In this paper, the cutout piston concept is applied to the MR damper to improve MR damper's control performance by reducing the passive damping effect. The MR damper with the cutout piston has been designed and manufactured and its hydraulic and electromagnetic analysis has been performed to predict its performance. The control performances of the MR damper with the cutout piston are verified through the comparison of experiment results and simulation results.

References

  1. Spencer, Jr. B. F., 1997, Phenomenological Model of a Magnetorheological Damper, ASCE J. Engrg, Mech., Vol. 123, No. 3, pp. 230-238. https://doi.org/10.1061/(ASCE)0733-9399(1997)123:3(230)
  2. Li, W. H., Yao, G. Z., Chen, G., Yeo, S. H. and Yap, F. F., 2000, Testing and Steady State Modeling of a Linear MR Damper under Sinusoidal Loading, J. Smart Mater. Struct., Vol. 9, No. 1, pp. 95-102. https://doi.org/10.1088/0964-1726/9/1/310
  3. Dimock, G. A., Yoo, J. H. and Wereley, N. M., 2002, Quasi-steady Bingham Biplastic Analysis of Electrorheological and Magnetorheological Dampers, J. Intelligent Material Systems and Structures, Vol. 13, No. 9, pp. 549-559. https://doi.org/10.1106/104538902030906
  4. Baek, W. K. and Lee, J. S., 2004, High-performance Magneto-rheological Damper Design, Transactions of the Korean Society for Noise and Vibration Engineering, Vol. 14, No. 6, pp. 470-477. https://doi.org/10.5050/KSNVN.2004.14.6.470
  5. Ha, S., H., Seong, M. S., Heung, Q. N. and Choi, S. B., 2009, Optimal Design of MR Damper : Analytical Method and Finite Element Method, Transactions of the Korean Society for Noise and Vibration Engineering, Vol. 19, No. 11, pp. 1110-1118. https://doi.org/10.5050/KSNVN.2009.19.11.1110
  6. Song, H. J., Woo, D. and Choi, S. B., 2006, Dynamic Characteristic Analysis of MR Impact Damper for Vehicle System, Transactions of the Korean Society for Noise and Vibration Engineering, Vol. 16, No. 7, pp. 754-761. https://doi.org/10.5050/KSNVN.2006.16.7.754
  7. Hwang, J. U., Hwang, J. H., Bae, J. S., Hyun, Y. O., Lim, K. H., Kim, D. M. and Kim, T. W., 2008, Semi-active Control of Helicopter Landing Gear Using Magneto-rheological Damper, J. Aeronautical and Space Science, Vol. 36, No. 4, pp. 346-351. https://doi.org/10.5139/JKSAS.2008.36.4.346
  8. Shin, C. B., Bae, J. S., Hwang, J. H., Kang, K. J., Ahn, S. T. and Han, T. H., 2008, Control of a Soft Recoil System for Recoil Force Reduction, Transactions of the Korean Society for Noise and Vibration Engineering, Vol. 18, No. 7, pp. 764-774. https://doi.org/10.5050/KSNVN.2008.18.7.764
  9. Singla, R., 2005, Design of a Mixed-mode MR Damper with Reduced Off-state Damping, Master Thesis, Ohio State University, USA.