Analysis of position effects of CPVA mechanism in reducing vibration of multi DOF damped system and generating electrical energy

CPVA (Cantilever piezoelectric vibration absorber) is a mechanism consisting of masses, springs, dampers and piezoelectric cantilever. In this study; CPVA acts as a vibration absorber and can generate electrical energy. CPVA is able to reduce the vibration of the damped system that vibrates translations and rotations due to the shift in position of excitation force on the main mass. At the first natural frequency the damped system is 7.56 rad/s, the CPVA mechanism reduction value with distance β =0.4m from the center of main mass, capable of damping the maximum translational vibration by 98% and the maximum rotational vibration of 67%.Furthermore, the number of piezoelectric cantilever as many as 1400 pieces produce electrical energy for 8.6 e-05 W.