Transactions of the Korean Society for Noise and Vibration Engineering (한국소음진동공학회논문집)

The Korean Society for Noise and Vibration Engineering (한국소음진동공학회)
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The Variation Rate of Shear Modulus for Anisotropic Magneto-rheological Elastomer due to Volume Fraction of CIP

CIP 부피비에 따른 이방성 MRE의 전단계수 변화율

  • 정운창 (한양대학교 기계공학과) ;
  • 윤지현 (한양대학교 기계공학과) ;
  • 양인형 (한양대학교 기계공학과) ;
  • 이유엽 (호원대학교 자동차기계공학부) ;
  • 오재응 (한양대학교 기계공학부)
  • Received : 2011.09.19
  • Accepted : 2011.11.07
  • Published : 2011.12.20
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Abstract

MRE(magneto-rheological elastomers) is a material which shows reversible and various modulus in magnetic field. Comparing to conventional rubber vibration isolator, MREs are able to absorb vibration of broader frequency range. These characteristic phenomena result from the orientation of magnetic particles named carbonyl iron powder(CIP) in rubber matrix. In this paper, simulation on variation rate of shear modulus for anisotropic MRE due to volume fraction of CIP and an effective permeability model was applied to predict the field-induced shear modulus of MREs. Also, the variation rate of shear modulus for anisotropic MRE was derived using magneto-mechanical theory. Based on Maxwell-Garnett mixing rule, the increment of shear modulus was calculated to evaluate the shear modulus of MREs with column structure of CIP due to induced current. The simulation results on variation rate of shear modulus can be applied to the variable mechanical system of MRE such as tunable vibration absorber, stiffness variable bush and mount.

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References

  1. Carlson, J. D. and Jolly, M. R., 2000, MR Fluid, Form an Elastomer Devices, Mechatronics, Vol. 10, pp. 555-569. https://doi.org/10.1016/S0957-4158(99)00064-1
  2. Deng, H. X. and Gong, X. L., 2007, Application of Magnetorheological Elastomer to Vibration Absorber, Nonlinear Science and Numerical Simulation, Vol. 13, pp. 1938-1947.
  3. Yoon, J.-H., Jeong, J.-E., Yang, I.-H., Lee, J.-Y. and Oh, J.-E., 2009, Experimental Identification on Shear Modulus of Magneto-rheological Elastomer based on Silicon Matrix due to Induced Current, Proceedings of the KSNVE Annual Autumn Conference, pp. 623-624.
  4. Zhang, X. Z., Li, W. H. and Gong, X. L., 2008, An Effective Permeability Model to Predict Field-dependent Modulus of Magnetorheological Elastomers, Communications in Nonlinear Science and Numerical Simulation, Vol. 13, pp. 1910-1916. https://doi.org/10.1016/j.cnsns.2007.03.029
  5. Karkkainen, K. K., Sihvola, A. H. and Nikoskinen, K. I., 2000, Effective Permeability of Mixtures: Numerical Validation by the FDTD Method, IEEE Trans Geosci Remote Sensing, 38:1303-8,p1. https://doi.org/10.1109/36.843023
  6. Woodson, H. H. and Melcher, J. R., 1968, Electromechanical Dynamics, John Wiley & Sons, Part2, pp. 418-478.
  7. Hayt, W. H. and Buck, J. A., 2005, Engineering Electromagnetics, 7/e, MeGraw-Hill, pp. 331- 335.
  8. Davis, L. C., 1998, Model of Magnetorheological Elastomers, Journal of Applied Physics, Vol. 85, No. 6, pp. 3348-3351.