DOI QR코드

DOI QR Code

A Study of Friction Characteristics in Magneto-Rheological Elastomer

자기유변탄성체 액츄에이터의 마찰특성 연구

  • Received : 2011.05.01
  • Accepted : 2011.06.28
  • Published : 2011.08.31

Abstract

In this study, friction characteristics using elastomeric actuator with Magneto-rheological (MR) materials are identified. Typically, Magneto-rheological materials are divided into two groups by MR fluid in fluid state and MR elastomer in solid state like rubber. The stiffness characteristics of Magneto-rheological material can be changed as magnetic field is applied. MR fluid has been applied to various industry fields such as to brake, clutch, damper, engine mount and etc. However, MR fluid has been used under the sealed condition to prevent leaking issues. In order to overcome these problems, MR elastomer that has same property as MR fluid has been developed and studied. MR elastomer mainly consists of polymer material such as natural rubber or silicon rubber with particles that can be polarized with magnetic field. And it is called as a smart material since its stiffness and damping characteristics can be changed. In this study, MR elastomer is produced and pin-on-disc tests are carried out to identify the friction characteristics of the material. Several test conditions are applied to evaluate the feasibility to use as a smart actuator in the field of vibration control.

References

  1. Carlson, J. D., US Patent 5054593, 1991.
  2. Lee, C. H. and Jang, M. G., "Virtual Surface Characteristics of a Tactile Display Using Magneto-Rheological Fluids," Sensors, Vol. 11, No. 3, pp. 2845- 2856, 2011. https://doi.org/10.3390/s110302845
  3. Yang, G., Spencer Jr., B. F., Carlson, J. D., and Sain, M. K., "Large-scale MR Fluid Dampers: Modeling and Dynamic Performance Considerations," Engineering Structures, Vol. 24, pp. 309-323, 2002. https://doi.org/10.1016/S0141-0296(01)00097-9
  4. Zhou, G. Y., "Shear Properties of a Magnetorheological Elastomer," Smart Materials and Structions, Vol. 12, pp. 139-146, 2003. https://doi.org/10.1088/0964-1726/12/1/316
  5. Fukahori, Y., Gabriel, P., and Bushfield, J. J. C., "How does Rubber Truly Slide between Schallamach Waves and Stick-slip Motion?," Wear, Vol. 269, pp. 854-866, 2010. https://doi.org/10.1016/j.wear.2010.08.016