VIBRATION CONTROL WITH SHUNTED PIEZOCERAMICS - THE ENERGY BALANCE

The paper presents the recent research on power and the energy balance in semi-active vibration control with shunted piezoceramics, where a negative capacitance circuit is involved. The work provides the general description of the piezoceramics as the power source element, which has the ability of converting the mechanical energy of the vibrating structure into the electrical energy, and by delivering it to the external shunt branch dissipates or generates the feedback reaction force damps the system.