Electrical Damping of a Piezoelectric Plate

Piezoelectric materials are substances that have strong coupling between structural displacements and electrical loads. The application of an electrical load will cause the structure to deform in a manner similar to a mechanical load. If the electrical load is applied rapidly, the structure will respond rapidly and will begin vibrating. If these vibrations are undesirable, they may be eliminated by damping, including electrical damping from a properly designed electrical circuit. This paper present the analysis of a piezoelectric beam subjected to a stepped electrical voltage. The ANSYS piezoelectric circuit elements are used to evaluate the electrical circuit that includes the piezoelectric beam.

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