ACTIVE DAMPING OF THE VIBRATION OF A GEOMETRICALLY NONLINEAR LONG THIN VISCOELASTIC PLATE WITH PIEZOELECTRIC ACTUATORS

摘要

Thin composite plates are used in many areas of modern engineering [1,3]. They are often subject to nonstationary and harmonic loads. When the frequency of the external load is close to resonance or the intensity of the load is high, the amplitude of vibration is commensurable with the thickness of the plate. The geometrical nonlinearity of the material should be taken into account in this case. To damp such vibrations, both passive and active damping methods are used. In recent years, piezoelectric inclusions, so called sensors and actuators, have been used for active damping of the stationary and nonstationary vibrations of thin-walled elements.