期刊
出版社
IEEE
DOI: 10.1109/spawda48812.2019.9019247
关键词
Generalized Rayleigh wave; Gyroscopic effect; Layered structure; Dispersion equation
资金
- National Natural Science Foundation of China [11572244, 11872300]
In this paper, we investigate the propagation of generalized Rayleigh waves in a piezoelectric layered structure. Considering the gyroscopic effect, and based on the theory of elastic dynamics, the field control equations with rotation are established. Substituting the trial solutions of the mechanical displacement and the electrical potential into the boundary and continuity conditions, we obtain the dispersion equation when the free surface is electrically open and electrically shorted, respectively. Numerical examples show that frequency varies approximately linear with the angular rate, and the change of frequency is more sensitive for long waves. The results provide a theoretical basis for designing SAW gyroscopes.
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