16 June 1998 Electrorheological grease (ERG) shock absorber
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Abstract
A fluid model for the evaluation of electrorheological grease (ERG) is presented. This model considers the influence of a Non-Newtonian fluid using a Herschel-Bulkley fluid model. Fluid compressibility was included using a lumped parameter dynamic system model. The optimal model parameters were determined by matching theoretical and experimental data for an existing ERG damper. Results indicate that a good match between experimental and theoretical data was achieved using the Herschel-Bulkley fluid model. A sensitivity analysis indicated that the model was insensitive to the mass of the fluid, but sensitive to the bulk modulus of the fluid.
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Thomas M. Marksmeier, Eric L. Wang, Faramarz Gordaninejad, Arthur J. Stipanovich, "Electrorheological grease (ERG) shock absorber", Proc. SPIE 3327, Smart Structures and Materials 1998: Passive Damping and Isolation, (16 June 1998); doi: 10.1117/12.310688; https://doi.org/10.1117/12.310688
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KEYWORDS
Fluid dynamics

Data modeling

Electrodes

Systems modeling

Dynamical systems

Motion models

Computer simulations

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