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Conference Papers Year : 2008

MR fluid linear actuators: a novel interaction mode

José Lozada
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  • PersonId : 842356
Moustapha Hafez
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  • PersonId : 855922
Xavier Boutillon


A novel linear actuator based on magneto-rheological (MR) fluid is presented. The linear actuator is composed of two coils and two magnetic cores leaving a 1 mm gap filled of MR-fluid. A magnetic or non-magnetic thin plate translates into the gap and shears the fluid. A controlled magnetic field, applied by the coils, changes the apparent viscosity of the fluid thereby the force opposed to the displacement of the plate is controlled. In order to study the MR-fluid behavior sheared by a thin plate, we present an experimental device able to measure the plate displacement and the force applied by the fluid on the plate. Experimental observations, modeling and parameters fitting are presented for both cases: magnetic plate and non-magnetic plate.
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Dates and versions

hal-00477700 , version 1 (30-04-2010)


  • HAL Id : hal-00477700 , version 1


José Lozada, Moustapha Hafez, Xavier Boutillon. MR fluid linear actuators: a novel interaction mode. Mecatronics, 2008, France. 6 p. ⟨hal-00477700⟩
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