<title>Modelling of smart fluid dampers</title>

Abstract

Smart fluid dampers offer an attractive solution to vibration damping problems where there is a need for variable damping behaviour. In recent years there has been a great deal of research effort in developing these dampers, and implementing appropriate control strategies. Consequently a wide range of modelling techniques have been proposed, for both device design and controller design processes. In general, however, the development of modelling and control techniques has proceeded in parallel to the development of laboratory-based devices. Consequently the techniques become well suited to those particular devices, and their performance in a more generic device design process may not be guaranteed. A more thorough method of illustrating the performance of models would be to investigate their performance when based upon different devices. This would help to emphasise the strengths and potential weaknesses of the model when used in a generic device design process. In this paper, the authors will seek to assess the robustness of a modelling technique by assessing its performance when based upon an 'unrelated' damper design from a different research group.

Dynamic characteristics and control of magnetorheological/electrorheological sandwich structures: A state-of-the-art review

“…In these studies, the rheological behaviors of the fluids suggested application of the solid models such as three-parameter model to represent the storage and loss moduli. Sims and Wereley (2003) employed the Maxwell fluid model to characterize an ER fluid in the pre-yield regime. In the Maxwell model, the loss and storage moduli approach 0 in small values of the excitation frequency, while in practice the pre-yield region is an elastic region and stiffness never fades out.…”

An experimental evaluation of pre-yield and post-yield rheological models of magnetic field dependent smart materials

“…Classification of the viscoelastic models is done according to fluid-like or solid-like behavior of the viscoelastic material. The common fluid-like viscoelastic models are viscous dashpot [4,5], Maxwell fluid [6,7], and threeparameter fluid [8,9]. Elastic spring [10,11], Kelvin-Voigt solid [12][13][14], and three-parameter solid [15] are the common solid-like viscoelastic models.…”

Active damping of sound transmission through an electrorheological fluid-actuated sandwich cylindrical shell

“…Viscoelastic models have commonly been used to represent the key rheological properties of the ERFs in the pre-yield regime [60][61][62]. These include solid-like models such as the Zener element model [63], Kelvin-Voigt model [64,65], the three parameter fluid models [66], and Maxwell fluid-like models [67,68].…”