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http://dx.doi.org/10.9725/kstle.2011.27.4.213

A Study of Friction Characteristics in Magneto-Rheological Elastomer  

Lee, Deuk-Won (School of Mechanical Engineering, Inha University)
Lee, Chul-Hee (School of Mechanical Engineering, Inha University)
Kim, Cheol-Hyun (R & D Center, Chang Am CALS Co.)
Cho, Won-Oh (R & D Center, Chang Am CALS Co.)
Publication Information
Tribology and Lubricants / v.27, no.4, 2011 , pp. 213-217 More about this Journal
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.
Keywords
magneto-rheological elastomer; coefficient of friction; magnetic field; pin-on-disc test;
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