preview

A Magneto Rheological Shock Absorber

Decent Essays

A magneto rheological shock absorber or magneto rheological damper is a damper filled with magneto rheological fluid, which is controlled by magnetic field, usually using an electromagnet. This allows the damping characteristics of the shock absorber to be continuously controlled by varying the current in the electromagnet. This type of shock absorber has found applications in semi-active vehicle suspensions which may adapt to road conditions, as they are driven by continuous sensor monitoring and also with prosthetic limbs. Fig. No.1. Magneto Rheological damper

Above figure shows the schematic of magneto rheological damper which is consist of cylinder, piston, piston rod and electrical winding. There are three types of the magneto rheological damper are,
Mono tube MR damper
Twin tube MR damper
Double-ended MR damper

MONO TUBE MR DAMPER
From the three types, the mono tube is the most common since it can be installed in any direction and it is small in size. A mono tube MR damper, shown in Figure, has only one store for the MR fluid and it is associated with accumulator mechanism to accommodate the changes in volume that results from piston rod movement. The accumulator piston is used for providing a barrier between the MR fluid and a compressed gas (usually nitrogen) that is used for accommodating the volume changes of liquid that occur when the piston rod enters the housing. Fig. No.2.Mono tube MR damper section view

TWIN TUBE MR DAMPER

The twin tube MR damper uses

Get Access