A Comparative Study Of Laminated Piezobeam With Extension And Shear Actuation

With the appearance of intelligent material and structure concept during the end of 1970s to the beginning of 1980s, piezo-material, a kind of intelligent material with adaptive ability, received widely attention.Applications of the laminated piezo-structure into the navigation architecture science and medicine are briefly reviewed based upon literature search. We discussed the mechanic features of two models of laminated piezo-beam. Based on the constructive function, the finite function and reduced planar piezoelectric function was derived through Hamilton Principle. We gave a brief introduction of ANSYS/APDL, and compiled finite element program (MPFEMP). The mechanic features of three-layer and five-layer piezo-beam were a research focus. A static and mode analyse was presented. At the end of the paper, we made a try to find out the optimal disposal of actuation in order to get a biggest displacement.In a word, this paper provided a scientific theory for the designing of piezo-structures.