Magnetically induced friction damping based on magnetoactive elastomers — A proof of concept

In this work we present a new concept for friction damping which is based on the permanent magnetization and flexibility of magnetoactive elastomers (MAE). The called “magnetofriction” studied sandwich structure in work. assembled consists MAE core ferromagnetic skins. Due to MAE, skins are attracted without need glue or other means fixation. magnetic forces generate normal loading contact interfaces between while tangential induced by forced vibrations applied beam. Random harmonic vibration tests reveal nonlinear dynamic behavior highlight capacity magnetofriction. balance method used model system identify parameters related resonance frequency ratio. results obtained from identification state ratios up 9% under excitation, remarkable damping. addition, Finite Element-based implemented study local states sandwich. Multi-physical simulations performed analyze mechanical interface. evaluate overall determine absence presence show that amplitude changes state.