Determination of the resonant frequencies of an anisotropic piezoelectric disk

An equation for the resonant frequencies of a thin anisotropic circular disk is obtained assuming exponential particular solutions. The roots of the equation are determined numerically. The resonant frequencies of two piezoelectric crystals are computed and compared with the resonant frequencies when the piezoelectric effect is not taken into account.Donetsk. Translated from Teoreticheskaya i Prikladnaya Mekhanika, No. 21, pp. 72–74, 1990.