Abstract
In this paper, the Eyring constitutive model parameters have been identified via minimization of the error
function defined as error sum between shear stresses from experimental tests in laboratory of Chongqing
University and shear stresses depicted the Eyring constitutive model. Authors have theoretically set up
flow control equations for magneto-rheological (MR) fluids in annular channels using the Eyring
constitutive model and N-S equations in hydrodynamics. The velocity profiles of MR fluids through
annular channel are obtained by means of flow control equations mentioned above. In accordance with
piston velocity and annular channel geometrical parameters of MR fluid shock absorber, MR shock
absorber performances have been predicated by means of analytical methodology developed in this paper.
In the light of technical requirements of front suspension of Chanan star minibus, a MR fluid shock
absorber, which is designed and fabricated in Chongqing University according to design method presented
in this paper, has tested by electro-hydraulic servo vibrator and its control system in National Center for
Test and Supervision of Coach Quality. The experimental results reveal that the analytical methodology
and design theory are reasonable.
