Applications of Magnetorheological Fluid Actuator to Multi-DOF Systems: State-of-the-Art from 2015 to 2021

Abstract

This review article presents various multi-DOF application systems that utilize smart magnetorheological (MR) fluid. It is well known that MR fluid has been actively studied and applied in many practical systems such as vehicle suspension dampers. The design requirements for the effective applications of MR fluid include geometry optimization, working principles, and control schemes. The geometry optimization is mostly related to the size minimization with high damping force, while the working principles are classified into the shear mode, the flow mode, and the squeeze mode depending on the dominant dynamic motion of the application system. The control schemes are crucial to achieve final targets such as robust vibration control against disturbances. It should be addressed that advanced output performances of MR application systems heavily depends on these three requirements. This review article presents numerous application systems such as sandwich structures, dampers, mounts, brakes, and clutches, which have been developed considering the three design requirements. In addition, in this article some merits and demerits of each application system are discussed to enable potential researchers to develop more effective and practical MR application systems featuring the multi-DOF dynamic motions.

Magnetorheological fluids: A concise review of composition, physicochemical properties, and models

“…Tactile knobs based on smart fluid have also been developed, which will be integrated with electrical devices in the next few years. MRFs are increasingly used in the medical field, for example, in gait-rehabilitation robots, prosthetic knees, or even finger rehabilitation (Oh et al, 2022). Still, these are unit solutions, the popularity of MRF in commercial solutions is also low due to the low level of trust in the customers who are not aware of the benefits of solutions based on them.…”

Magnetorheological fluid in prostheses: A state-of-the-art review

“…This theory can, for example, be replicated in developing a soft prosthetic finger. Flexible structures with magnetorheological fluid are already applied in space robots (Oh et al, 2022).…”

“…Several review articles on MRF have been published over the past decade. The vast majority described MRF’s synthesis and technological aspects, as well as specific characteristics, structures, and general applications (Ahamed et al, 2018; Choi et al, 2016; de Vicente et al, 2011; Elsaady et al, 2020; Ghaffari et al, 2014; Imaduddin et al, 2013; Kumar et al, 2019; Liu et al, 2022; Lv et al, 2021; Mughal, 2017; Oh et al, 2022; Phu and Choi, 2019; Rahman et al, 2017; Soni et al, 2023; Thiagarajan and Koh, 2021; Wang and Liao, 2011; Zhu et al, 2012). However, critical reviews on the use of MRFs in the design of all prosthetic devices have not been published to date.…”

Optimal Voltage Distribution on PZT Actuator Pairs for Vibration Damping in Beams with Different Boundary Conditions

“…The growing need for lightweight and high-strength components has promoted the development of smart materials that can modulate some structure's mechanical characteristics, whether environmental circumstances make it necessary. The behaviour of these materials can be tuned through the application of external stimuli such as temperature [1,2], electric field [3], magnetic field [4,5], etc. Among the available smart materials, the most suitable is lead zirconate titanate (PZT) for damping, vibration control, and energy harvesting applications [6][7][8].…”