Abstract
Magnetorheological fluid damper is a class of damping device ,which is based on magnetorheological fluid flow characteristics. Magnetorheological fluid shock absorber has become an important new generation of high-performance, intelligent damping device. Controlled use of the flow of liquid to change the shock absorber damping force control of the implementation of this approach is very application. Comparing with the maturity of damping force model, the lack of the studying of magnetic field strength. This thesis should focus on analysis of the magnetic field strength and other factors (the current incentives).This thesis is based on the mechanism of Magnetorheological Damper, a mathematical modeling method was introduced to set up a magnetic density model in the MR Damper. Related ANSYS programs were developed to carry out the Finite Element Analysis of the model. The results which obtained by above two ways were analyzed, a simplified model of magnetic density was obtained, which presents the relationship between the magnetic field and the main design & control factors(the current excitation ). These results are useful for the continuous work, for instance, the control of the magnetic field of the aperture.
