Abstract: For the intelligent plate containing distributed slices of piezoceramics on its two surfaces, an element model of 12 DOFs with 2 electrical DOFs is adopted and its dynamics differential equations are deduced by means of the Hamilton principle. And then, the Random Factor Method is used to discuss the dynamic characteristic of the intelligent plate with random parameters. Finally, an intelligent cantilever plate is taken as an example, and numerical results of the Random Factor Method are compared with those of the Monte-Carlo Method, by which it is verified that the Random Factor Method is an expedient, comparatively accurate method in dealing with the randomicity of the intelligent plate.

Key words: intelligent plate, finite element, random parameters, random factor method, dynamic characteristic