What is magnetorheological (MR) fluid and what is its purpose?
What will be an ideal response?
In their attempt to reduce vibrations set up by the drive shaft as it revolves in the center bearing, manufacturers are beginning to use magnetorheological (MR) fluid in the mount. The MR fluid is used to change the stiffness of the mount while the vehicle is moving. In the presence of a magnetic field, MR fluids rapidly change their viscosity. The fluid becomes more viscous when the intensity of the magnetic field is increased; therefore, the mount becomes more rigid. To provide vibration isolation, a bracket with very soft material, such as elastomer, is used in conjunction with the fluid's dampening quality. This allows drive shaft vibrations to be dampened and isolated during all operating conditions, while keeping the drive shaft pieces securely aligned.
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