Design issues in magnetorheological fluid actuators

Muturi G. Muriuki; William W. Clark

doi:10.1117/12.349804

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2 June 1999 Design issues in magnetorheological fluid actuators

Muturi G. Muriuki, William W. Clark

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Proceedings Volume 3672, Smart Structures and Materials 1999: Passive Damping and Isolation; (1999) https://doi.org/10.1117/12.349804
Event: 1999 Symposium on Smart Structures and Materials, 1999, Newport Beach, CA, United States

Abstract

There are a number of designs that have been proposed for MR and ER fluid actuators. While studies have shown that the fluids themselves behave similarly (in terms of constitutive behavior), the design issues are clearly different. ER fluids require electric fields to control their behavior, while MR fluids require magnetic fields. The goal in each case is to maximize the field to achieve the highest possible change in fluid properties in the working volume. Design challenges are faced in trying to maximize this field in an actuator. This paper will focus on design issues for MR fluid actuators. The focus will be on how to get the most out of the field that is produced. One critical issue is how to produce high force with a low magnetic field. Magnetic field alignment and actuator geometry are investigated as design issues. Experimental data shall be presented for two distinct actuator designs.

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Muturi G. Muriuki and William W. Clark "Design issues in magnetorheological fluid actuators", Proc. SPIE 3672, Smart Structures and Materials 1999: Passive Damping and Isolation, (2 June 1999); https://doi.org/10.1117/12.349804

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