Vibration Analysis of Laminated Plates in a Piezoelectric Inkjet Printhead

The actuator of piezoelectric inkjet printhead is analyzed as a rectangular laminated plate for vibrations. With the theory of piezoelectric plates and Rayleigh-Ritz method, an analytical model of laminated piezoelectric rectangular plate was established, and the governing equations were derived and solved for forced vibrations of the thin-plate. The primary resonance of rectangular plate is investigated for the deformation and frequency. The amplitude-frequency response curve and the first-order vibration mode shapes are obtained. The results in the present study is to be used for the improvement of electric driving of printhead structure.