Cylindrical sandwich shells with piezoelectric axial and ring elements bonded to the outer and inner surfaces are considered. Thermal effects are included in the analysis. Governing equations of motion and the boundary conditions derived in this paper can be applied to the shells with piezoelectric sensors or actuators or to the shells with a feedback control including both sensors and actuators. Detection of delaminations using axial sensors is used as an example of application of the theory.
展开▼