CURVED PIEZOACTUATOR MODEL FOR ACTIVE VIBRATION CONTROL OF CYLINDRICAL-SHELLS

A composite differential equation of motion for a bimorph configured t hin curved uniformly polarized piezoactuator pair surface bonded to a cylindrical shell is derived and the approximate analytical expression s for the equivalent forces exerted by the actuator on a cylindrical s hell are obtained. The in-phase configuration is studied. The piezoact uators exert x and theta line forces and a uniform pressure load over the patch for in-phase configuration. The in-phase forces show a satur ation behavior with increase in thickness.