Title :
Frequency shifts in a piezoelectric body due to a surface mass layer with consideration of the layer stiffness
Author :
Yang, Jiashi ; Guo, Shaohua
Author_Institution :
Dept. of Eng. Mech., Nebraska Univ., Lincoln, NE, USA
Abstract :
Shifts of resonant frequencies of a three-dimensional piezoelectric body of an arbitrary shape due to the addition of a thin layer of mass to its surface are studied. A first-order perturbation integral is obtained for the frequency shifts. The result generalizes that of a previous paper by considering the effect of the stiffness of the mass layer, in addition to its inertial effect.
Keywords :
elastic constants; frequency stability; perturbation theory; piezoelectricity; shapes (structures); first-order perturbation integral; frequency shifts; inertial effect; layer stiffness; resonant frequencies; surface mass layer; three-dimensional piezoelectric body; Acoustic sensors; Acoustic waves; Crystalline materials; Equations; Piezoelectric films; Resonant frequency; Shape; Stability analysis; Surface acoustic waves; Tensile stress;
Journal_Title :
Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions on
DOI :
10.1109/TUFFC.2005.1509778
