Research on a 1-3 piezocomposite projector

Because the node quantity of a full 1-3 piezocomposite projector model is large,its computing time is longer;it is difficult for the unit cell model to directly simulate the projector response properties in the water.To address this difficulty,a method for analyzing a 1-3 piezocomposite projector by applying ANSYS software was presented.By using the method and thickness mode theory,a 1-3 piezocomposite projector was designed.In addition,the calculation results attained by applying thickness mode theory,FEM and the testing results were compared and analyzed.The research results show the following aspects: the results of the FEM coincide well with the testing results,the resonance frequency of the designed projector is 300kHz with a peak transmitting voltage response of 178dB,and the thickness mode of the designed projector is pure.