INFLUENCE OF A CONVEX SURFACE SHAPE ON EIGENVIBRATIONS OF A PIEZOELECTRIC PLATE OF SBTC-CUT

An analysis is given of an influence of a convex surface shape on eigenvibrations of the SBTC-cut piezoelectric plate. We show that the ratio of radii and direction of main curvature of a piezoelectric plate surface affect substantially the frequency shifts and amplitude distributions of the eigenvibrations. The non-linear dependence of the rotation angle of the amplitude distribution on a direction of main curvature of the plate is examined. We notice that the results obtained may be used for the explanation of a discrepancy between the measurements data provided experimentally by many authors and results calculated.