MODELING AND ANALYSIS OF ELLIPTICAL PIEZOELECTRIC LAMINATES WITH CLAMPED BOUNDARY

摘要

This paper presents an effort of modeling and analysis for the sensing and actuation of elliptical piezoelectric laminates with clamped boundary conditions. The laminate contains a number of layers of structural and piezoelectric materials. The configuration of the laminate may be arbitrary. The functions of sensing and actuation are achieved through the in-plane strains in piezoelectric layers. An analytical model based on the classical lamination theory is developed. Closed form solutions are obtained for laminates with elliptical shape and clapmed boundary. The sensitivity of this piezoelectric structure is discussed in depth. Some unique phenomena are identified in the analysis. The results of the present study should be very useful for the design of laminated piezoelectric sensors and actuators.