Magnetorheological fluids set to revolutionise dynamic vehicle suspension systems

November 29, 2005

Magnetorheological (MR) fluids are smart materials whose flow/viscosity properties can be modified by applying an electric field. These changes in viscosity occur within a fraction of a millisecond - far faster than conventional mechanical means - and can be used to effectively control vibrations in applications dealing with actuation, damping, robotics and mechatronics.

In this study published in AZojomo*, researchers Jorge A. Cortés R., Leopoldo S. Villarreal-González and Manuel Martínez M. from The Instituto Technologico de Estudios Superiores de Monterrey (ITESM) used dynamic simulations software to analyze the behavior and performance of systems consisting of rigid or flexible parts undergoing large displacement motions. A prime example of an application that meets these conditions is in vibration control in automotive suspension systems.

Initial experimentation was done using a prototype damper. The displacement of the damper was measured in stages while known compression forces are applied under the influence of different magnetic fields. This data was then used to develop simulations and models for damper response catering to different road surfaces.

The researchers found that reconfigurable suspension systems were technologically feasible using magnetorheological fluids. Future work is required to develop the software algorithms to control the damping action. The resultant mechatronic system would respond not only to the road conditions but also comfort levels required by the vehicle occupants.
The article is available to view at

*AZojomo publishes high quality articles and papers on all aspects of materials science and related technologies. All the contributions are reviewed by a world class panel of editors who are experts in a wide spectrum of materials science. [See]

AZojomo is based on the patented OARS (Open Access Rewards System) publishing protocol. The OARS protocol represents a unique development in the field of scientific publishing - the distribution of online scientific journal revenue between the authors, peer reviewers and site operators with no publication charges, just totally free to access high quality, peer reviewed materials science. [See and]


Related Magnetic Fields Articles from Brightsurf:

Physicists circumvent centuries-old theory to cancel magnetic fields
A team of scientists including two physicists at the University of Sussex has found a way to circumvent a 178-year old theory which means they can effectively cancel magnetic fields at a distance.

Magnetic fields on the moon are the remnant of an ancient core dynamo
An international simulation study by scientists from the US, Australia, and Germany, shows that alternative explanatory models such as asteroid impacts do not generate sufficiently large magnetic fields.

Modelling extreme magnetic fields and temperature variation on distant stars
New research is helping to explain one of the big questions that has perplexed astrophysicists for the past 30 years - what causes the changing brightness of distant stars called magnetars.

Could megatesla magnetic fields be realized on Earth?
A team of researchers led by Osaka University discovered a novel mechanism called a ''microtube implosion,'' demonstrating the generation of megatesla-order magnetic fields, which is three orders of magnitude higher than those ever experimentally achieved.

Superconductors are super resilient to magnetic fields
A Professor at the University of Tsukuba provides a new theoretical mechanism that explains the ability of superconductive materials to bounce back from being exposed to a magnetic field.

A tiny instrument to measure the faintest magnetic fields
Physicists at the University of Basel have developed a minuscule instrument able to detect extremely faint magnetic fields.

Graphene sensors find subtleties in magnetic fields
Cornell researchers used an ultrathin graphene ''sandwich'' to create a tiny magnetic field sensor that can operate over a greater temperature range than previous sensors, while also detecting miniscule changes in magnetic fields that might otherwise get lost within a larger magnetic background.

Twisting magnetic fields for extreme plasma compression
A new spin on the magnetic compression of plasmas could improve materials science, nuclear fusion research, X-ray generation and laboratory astrophysics, research led by the University of Michigan suggests.

How magnetic fields and 3D printers will create the pills of tomorrow
Doctors could soon be administering an entire course of treatment for life-threatening conditions with a 3D printed capsule controlled by magnetic fields thanks to advances made by University of Sussex researchers.

Researchers develop ultra-sensitive device for detecting magnetic fields
The new magnetic sensor is inexpensive to make, works on minimal power and is 20 times more sensitive than many traditional sensors.

Read More: Magnetic Fields News and Magnetic Fields Current Events is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to