Vibration energy is abundantly present in many natural and arti cial systems and can be assembled by various mechanisms, mainly using piezoelectric and electromagnetic means. In the present article, the electromechanical system with two degrees of freedom is considered. To the main mass, whose vibrations are to be reduced, an additional element (dynamical vibration absorber or DVA) is attached. The DVA consists of a spring, damping and piezoelectric elements for energy harvesting. The goal is to reduce the vibration of the main structure and at the same time collect energy from the vibration of the connected vibration absorber. It is shown that the piezoelectric element allows the effective energy harvesting and at the same has very limit influence on reducing the amplitude of oscillations of main mass

Peer Reviewed