Electroelasticity of piezoelectric film actuator with system of interacting interdigitated electrodes

An electromechanical mathematical model of functioning of a piezoelectric CDS-actuator in the form of a piezoelectric cylindrical shell with double spirals of interacting electrodes mounted on the surface of the shell has been developed. Disclosed is a method of making a piezoelectric CDS-actuator through preliminary creation of a CDS-actuator scan in form of a flexible planar rectangular piezoelectric actuator with arrangement of interacting rectilinear «interdigitated» electrodes at an angle to the base of the CDS-scan. Numerical modeling of deformation fields and modal analysis of the first three forms and resonance frequencies of oscillations for single-layer and double-layer CDS-actuators were performed.