Review of magnetorheological (MR) fluids and its applications in vibration control

Abstract

Magnetorheological (MR) fluids are now well established as one of the leading materials for use in controllable structures and systems. Commercial application of MR fluids in various fields, particularly in the vibration control, has grown rapidly over the past few years. In this paper, properties of magnetorheological (MR) fluids ,its applications in suspensions of vehicles, suspension of trains, high buildings cable-stayed bridges have been discussed. The scope of MR fluids in future, problems and some suggestions are also presented. Finally, effectiveness of MR fluids in vibration control of marine diesel engine through experiment is briefly discussed by the author.

Development of mechanomutable asphalt binders for the construction of smart pavements

“…This rheological ability to control the structure is due to welldefined particle chain structures formed by the alignment of the magnetic movements of the particles in the direction of the field [21]. The strength of the magnetorheological effect is directly related to the amount, size distribution, shape, density, and intensity of the magnetic field applied [21][22][23]. The dispersed phase can be either a ferri or ferromagnetic material, including iron, magnetite, or other ferrites [24][25][26] typically in the micrometer size range [27].…”

Semi-active damping strategy for beams system with pneumatically controlled granular structure

“…Presently, magnetorheological dampers filled with a mixture of synthetic oil and ferromagnetic microparticles are commercially available and acknowledged by researchers [4,5]. The control of the damping coefficient is achieved by a modification of the magnetic field, which allows a short response time.…”

Optimal design of a novel configuration of MR brake with coils placed on the side housings

“…Therefore, MRF holds great potential in many applications that require an electromechanical interface such as clutch, brakes, valves, dampers and robotics [1,2]. Recently, there have been a number of researches on brakes using MRF (MRB) in order to improve braking torque, reduce size and mass of the MR brake systems.…”