How do magnetorheological fluids work?

Magnetorheological dampers (MR dampers) exploit the physical properties of magnetorheological fluids (MR fluids). MR fluids change their viscosity when subject to a magnetic field. An MR fluid consists of a mixture of oil (usually a silicon oil) and micro-particles sensitive to the magnetic field (e.g. iron particles).

What are magnetorheological materials used for?

[43] have presented state-of-the-art reviews on magnetorheological elastomer devices. From these reviews, one can conclude that MREs can be used in many devices including but not limited to vibration absorbers, vibration isolators, sensors, controllable valves, and adaptive beam structures.

What is magnetic fluid?

Definition of magnetic fluid 1 : a hypothetical fluid formerly assumed to account for magnetic phenomena. 2 : a mixture of finely divided iron with oil or other suitable liquid that is characterized by its marked increase in viscosity when subjected to a strong magnetic field — compare magnetic fluid clutch.

What is the major difference between ER and MR fluids?

The ER device was built as a squeeze cell incorporating an ER fluid sandwiched between two electrodes which, during impact, move towards each other, whilst the MR device was a commercially available vibration absorber.

What is Magneto Rheostatic?

A Magneto rheological Fluid (MRF) is a Smart fluid whose viscosity can be varied by application of magnetic field. The MR Fluid has vast applications in various engineering as well as day to day life. There is huge potential that this revolutionary material will provide many leading edge applications.

Who invented magnetorheological dampers?

the Delphi Automotive corporation
MagneRide is an automotive adaptive suspension with magnetorheological damper system developed by the Delphi Automotive corporation, during a period when the company was a subsidiary of General Motors (GM), that uses magnetically controlled dampers, or shock absorbers, for a highly adaptive ride.

Who invented MR Fluid?

The discovery of magnetorheological fluid (MRF) goes back to 70 years ago by Rabinov [1] at the US National Bureau of Standards.