Aiming at problem of how to improve the efficiency of piezoelectric of cantilever beam

through dynamics analysis on piezoelectric energy converter

and set up a circuit equivalent model and obtain calculation formula of cantilever beam harmonic angle vibration frequency and output power.Through numerical substitution and calculation simulation

influence curve of structure parameters on output power is obtained.Through analysis it shows that in the design of the cantilever beam structure parameters

as possible as in structural strength allowed conditions

choose the more heavier additional quality block

electrode length and beam length ratio is 0.8

piezoelectric ceramic and metal layer thickness ratio is 0.25

which can improve conversion efficiency.