Optimization of dynamic characteristics of smart-systems based on piezoelements

Abstract eng:
We consider the electroelastic systems consisting of an elastic deformable elements, some of which has piezoelectric properties. Electric series circuits are connected to the piezoelectric elements. The purpose of research is to establish effective methods of mathematical modeling, makes possible to find the parameters of the external electric circuit elements providing at predetermined resonant frequencies the maximum damping properties of electroelastic body. A problem of natural vibrations is offered to select effective schemes of solving the given problem. Some options of equivalent circuits of the elastic system with piezoelectric elements are suggested as the most effective approaches to calculate the required parameters of an electric circuit for maximum damping. The justification of the most reliable equivalent circuits is carried out on the basis of the problem of natural vibrations. Numerical results are given.

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