Dynamic behaviors of magnetorheological fluid-elastomer composites under oscillatory compression

Xiaojie Wang; Faramarz Gordaninejad; Gregory H. Hitchcock

doi:10.1117/12.540303

29 July 2004 Dynamic behaviors of magnetorheological fluid-elastomer composites under oscillatory compression

Xiaojie Wang, Faramarz Gordaninejad, Gregory H. Hitchcock

Proceedings Volume 5386, Smart Structures and Materials 2004: Damping and Isolation; (2004) https://doi.org/10.1117/12.540303
Event: Smart Structures and Materials, 2004, San Diego, CA, United States

Abstract

A new magnetorheological (MR) elastomer composite encapsulating MR fluid inside a polymer solid is presented. The mechanical properties of the MR composite sandwich system are controllable through an externally applied magnetic field. The dynamic behavior of the MR fluid-elastomer under various magnetic fields has been investigated by means of oscillatory compression cycles over a frequency range of 0.1 to 10Hz for various deformations (less than 1 mm). Energy dissipation in the material is analyzed as related to strain amplitude, strain frequency and magnetic field strength. The field induced damping mechanism is discussed in terms of the damping exponent. Such MR fluid-elastomer composites show promise in applications where tuning vibration characteristics of a system is desired such as altering natural frequencies, mode shapes, and damping properties.

Citation Download Citation

Xiaojie Wang, Faramarz Gordaninejad, and Gregory H. Hitchcock "Dynamic behaviors of magnetorheological fluid-elastomer composites under oscillatory compression", Proc. SPIE 5386, Smart Structures and Materials 2004: Damping and Isolation, (29 July 2004); https://doi.org/10.1117/12.540303

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