Finite element simulation of energy-trapped electromechanical resonators

✍ Scribed by Y. Kagawa; H. Arai; K. Yakuwa; S. Okuda; K. Shirai

• Book ID: 104153797
• Publisher: Elsevier Science
• Year: 1975
• Tongue: English
• Weight: 792 KB
• Volume: 39
• Category: Article
• ISSN: 0022-460X
• DOI: 10.1016/s0022-460x(75)80085-x

✦ Synopsis

Energy-trapped electromechanical resonators are widely used. A numerical technique for analysis and design, by means of a finite element simulation procedure, is presented in which the electromechanical coupling effect is taken into account. The thickness/shear and the thickness/twist vibrations associated with a piezoelectric thin plate are considered. A circular plate quartz resonator and a plano-bevel DT-cut quartz resonator are analyzed as pseudo-two-dimensional models for test case examples, the results for which are compared with the measured data. The calculation of rectangular plates as two-dimensional examples is then demonstrated, and the effect of the plate width on the natural frequencies is discussed in conjunction with the one-dimensional case. The calculation of the motional admittance at the electrical terminal also is shown.