EXPERIMENTAL INVESTIGATION OF A PORTAL FRAME USING MAGNETORHEOLOGICAL FLUID DAMPER

A Magnetorheological fluid (MRF) damper gives a real solution for semi-active vibration control in vibrations for structures. The performance of the MRF damper depends significantly on the electromagnetic circuit which is integrated into it. The force which is developed by MR fluid damper is greatly influenced by the magnetic flux density induced in the fluid flow gap. In the fields of Civil and Mechanical Engineering, Magnetorheological fluid (MRF) damper based semi-active systems offer protection to structures subjected to mechanical vibrations and also lateral loads due to wind and earthquake forces. In the present work, structural and magnetic analysis of the MR damper is studied and also, the dynamic behavior of a frame when subjected to different forcing frequencies has been discussed.