Abstract：With piezoelectric ceramic - metal - piezoelectric ceramic symmetric laminated structure as the research object, the forced vibration differential equation of piezoelectric laminated symmetrical cantilever beam under transverse excitation voltage can be obtained based on energy method. The finite element model was established, and the modal, harmonic response and transient dynamic response of the model were analyzed by using ANSYS software. The simulation results agreed with the theoretical value, which verified the validity of the theory. Further more, the influence of damping on the transverse displacement response was analyzed, and variation laws of velocity and acceleration with time were discussed, and the position of the maximum stress of piezoelectric cantilever beam and characteristics of the maximum stress with time were analyzed. The conclusion can provide necessary theoretical reference for the design and analysis of piezoelectric vibrator.
2014, Vol. 33 
