Modelling and Simulation of Electro- and Magnetorheological Fluid Dampers

Abstract

Electro‐ and magnetorheological fluids are smart, synthetic fluids changing their viscosity from liquid to semi‐solid state within milliseconds if a sufficiently strong electric or magnetic field is applied. When used in suitable devices, they offer the innovative potential of very fast, adaptively controllable interfaces between mechanical devices and electronic control units. This paper gives an overview on the basic properties of electro‐ and magnetorheological fluids and discusses various phenomenological models for whole devices and their applications. Numerical simulation results are presented for the passive suspension of a quarter vehicle model.

Optimal and Robust Damping Control for Semi-Active Vehicle Suspension

“…However, a sufficiently accurate and fast computable model of the dynamic behavior of an ERF shock absorber can be obtained, e.g., using parameterized, phenomenological models. Here the approximation of the ERF effects is usually induced by friction elements or nonlinear spring or damper elements [Stanway, Spronston and El-Wahed, 1995;Butz and von Stryk, 2002]. The augmented Bouc-Wen model by [Spencer et al 1996b] (see also [Butz and von Stryk, 2002;Hoppe et al, 2000] and Fig.…”

“…Here the approximation of the ERF effects is usually induced by friction elements or nonlinear spring or damper elements [Stanway, Spronston and El-Wahed, 1995;Butz and von Stryk, 2002]. The augmented Bouc-Wen model by [Spencer et al 1996b] (see also [Butz and von Stryk, 2002;Hoppe et al, 2000] and Fig. 2 (right)) is one of the most flexible models which take into account the dependency on a variable electrical field.…”

Application of the optimal homotopy asymptotic method to nonlinear Bingham fluid dampers

“…MR fluids have also attracted considerable interest due to their wide range of uses in vibration dampers [1][2][3][4]. Based on experimental data, the mechanical model for an MR damper is often established through an optimization method [5][6][7][8].…”

“…In civil engineering, the Bingham model is often used for emulating the dynamic behavior of MR dampers. The so-called Bingham model can be expressed as [4,6,7,9] …”

Modeling, Simulation and Optimization of Electrorheological Fluids

“…The measurements have been performed using, e.g., confocal scanning laser microscopy (DASSANAYAKE et al [2000]), two-dimensional light scattering techniques (MARTIN et al [1998b]), and nuclear magnetic resonance imaging (UGAZ et al [1994]). The potential industrial applicability of electrorheological fluids in automotive applications (BAYER [1998], BUTZ and STRYK [2001], COULTER et al [1993], FILISKO [1995], GARG and ANDERSON [2003], GAVIN [2001], GAVIN et al [1996a,b], HARTSOCK et al [1991], HOPPE et al [2000], JANOCHA et al [1996], LORD [1996], PEEL et al [1996], SIMS et al [1999], STANWAY et al [1996], WEYENBERG et al [1996], ZHAO et al [2005]), aerospace applications (BERG and WELLSTEAD [1998], LOU et al [2001], WERELEY et al [2001]), food processing (DAUBERT et al [1998]), geophysics (MAKRIS [1999], XU et al [2000]), life sciences (KLEIN et al [2004], LIU et al [2005], MAVROIDIS et al [2001], MONKMANN et al [2003a,b], TAKASHIMA and SCHWAN [1985]), manufacturing (KIM et al [2003]), military applications (DEFENSE UPDATE [2004]), and nondestructive testing (MAVROIDIS [2002]) caused the US Department of Energy to issue a research assessment of electrorheological fluids (DOE [1993]) and popular scientific journals such as Science and Nature to publish overview articles (HALSEY [1992], WHITTLE and BULLOUGH [1992]). Further references covering various aspects of experimental work, modeling efforts, and applicat...…”