Analytical research of damping efficiency and heat generation of magnetorheological damper
Résumé
Magnetorheological (MR) dampers are currently used in various areas, such as: human prosthetics,seismic protection, active suspensions, safety systems, amongst other. This paper deals with theproper design of a MR damper in the innovative field for vibration control. A methodology forcalculation some principal characteristics of the damper such as: electromagnet’s magnetic fieldvalue, emitted heat and damping force is presented. The methodology is based on analyticcalculations of the characteristics and finite element method analysis. The obtained theoreticalresults were confirmed by performed experimental tests, thanks to a specially designed and realisedMR damper. Two main geometrical characteristics of the damper, namely: piston thickness andelectromagnet width were optimally chosen, thus allowing to reach maximum damping force.