18-10-2010, 05:05 PM
Analysis of Magneto.docx (Size: 342.3 KB / Downloads: 206)
Abstract
Purpose: This paper presents the properties of magneto-rheological fluids and their recent applications and development In recent years. This paper particularly deals about the use of MR fluids in shock absorbing system in cars.
Reviews: The theoretical research results of the properties and applications obtained in the past decades and their developments are also reviewed.
Findings: It is very clearly and well understood from the presented paper that replacement of the traditional methods with smart materials such as MR fluids will be a development in technology and will increase the comfort.
Value: This article gives an up-to-date development in MR fluids and their applications in suspension systems in an automobile.
Keywords: MR fluids,magnetic field,yield stress,loads
INTRODUCTION
Magnetorheological (MR) fluids are materials that respond to an applied magnetic field with a change in rheological behavior. Typically,this change is manifested by the development of a yield stress that monotonically increases with applied field. Interest in magnetorheological fluids derives from their ability to provide simple, quiet, rapid-response interfaces between electronic controls and mechanical systems. That magnetorheological fluids have the potential to radically change the way electromechanical devices are designed and operated has long been recognized.
MR fluid is different from a ferrofluid,, in which the particles are much smaller. MR fluid particles are primarily on the micrometer -scale and are too dense for Brownian motion to keep them suspended (in the lower density carrier fluid). Ferro-fluid particles are primarily nanoparticles that are suspended by Brownian motion and generally will not settle under normal conditions.
Here we discuss some of the commonly used MR fluids,their properties,applications,advantages and dis-advantages.