Dynamics of an electromechanical damping device with magnetic coupling

In this paper, we analyze the dynamics of an electromechanical damping device, which consist of an electrical system coupled magnetically to a mechanical structure, and that works by transferring the vibration energy of the mechanical system to the electrical system. We study the instability issues which limit the performance of the device. An analysis of the effective range of the coupling parameter for which a good reduction of the amplitude of the mechanical system occurs is presented. The effects of the coupling parameter on the bifurcation structures are found and it appears that with the appropriate choosing coupling parameter, the quenching of mechanical chaotic vibrations takes place.