High Loaded Mounts for Vibration Control Using Magnetorheological Fluids: Review of Design Configuration

Abstract

Design configurations of high loaded magnetorheological (MR in short) mounts are reviewed and discussed. The configurations are analyzed on the basis of three operating modes of MR fluid: flow mode, shear mode, and squeeze mode. These modes are significantly important to develop new type of mounts and improve the efficiency of vibration control. In this paper, advantages and disadvantages of each operation mode are analyzed on the basis of ability of designing high loaded mounts. In order for analysis, the field-dependent damping force equations for typical cross sections of mounts are firstly investigated while maintaining original equations of these cross sections. As a subsequent step, simulation tools for the high loaded mounts are investigated and discussed. These tools which are developed from the analyzed method are expressed as functions of various design parameters such as inside pressure, magnetic field, dimension, stiffness, and damping. These tools are essential for accurate design of MR mount and for careful checking of the operation capability before manufacturing the mounts. This paper can provide very useful information and guidelines to determine an appropriate design configuration of high loaded mounts whose vibration control performances depend on the operational mode of MR fluid.

Magnetorheology: a review

“…Specifically, in simple vibration control/isolation devices, a small loss factor is required to attenuate oscillations with frequencies above the natural frequency, while a large loss factor is required to attenuate oscillations close to the natural frequency. 263,264 On the one hand, the majority of the on-state storage modulus is dictated by the field-induced structures, particle magnetization and particle concentration. However, the modulus change over its value in the off-state relies also on the viscoelastic properties of the matrix 265 and particle concentration.…”

A Review of the Evaluation, Control, and Application Technologies for Drill String Vibrations and Shocks in Oil and Gas Well

“…Aerospace and military industry has developed rapidly, so the mature control technologies in the aerospace and military industry are introduced for the control of drill string V&S. Because the V&S increased control difficulty and uncertainty of drilling, it not only is related to the working life of the downhole tools but also involves the borehole quality and drilling cost. It is a multiobjective dynamic optimization control problem, and the multiobjective dynamic and collaborative algorithm track control method of vehicles in the field of aerospace and military industry can be introduced for the control of drill string V&S. In order to take advantages of control methods and reduce the drilling cost, the hybrid control system should be established based on various control methods [135]. Passive control, active control, and semiactive control can be in a drill string system at the same time.…”

A review on multi-physics numerical modelling in different applications of magnetorheological fluids

“…The performances of these applications are found to improve significantly due to the rapid, reversible and controllable characteristics of MR fluids (Wang and Liao, 2011). Examples of these applications are journal bearings (Bompos and Nikolakopoulos, 2011), hydraulic valves (Bullough et al, 2008; Nguyen et al, 2008), micro-pumps (Liang et al, 2018), smart clutches (Ellam et al, 2006; Zhang et al, 2019), rotary MR dampers (Deng et al, 2019; Wang et al, 2019), robotics (Hartzell et al, 2019; Hwang et al, 2019), energy harvesters (Deng and Dapino, 2015; O’Donoghue et al, 2016), rheometers (Allebrandi et al, 2020), human prosthesis (El Wahed and Wang, 2019), engines mounts (Do and Choi, 2015), and hybrid body armours (Son and Fahrenthold, 2012). So far, there have been fewer studies on the employment of MR fluids in these applications compared to research efforts on linear MR dampers (Galindo-Rosales, 2016).…”