Title :
Electro-elastic characteristics of asymmetric rectangular piezoelectric laminae
Author :
Chang, Shuo Hung ; Tung, Yi Chung
Author_Institution :
Dept. of Mech. Eng., Nat. Taiwan Univ., Taipei, Taiwan
fDate :
7/1/1999 12:00:00 AM
Abstract :
The electro-elastic characteristics of clamped rectangular piezoelectric laminated plates were analytically investigated. A fully covered electrode piezoelectric layer was laminated on an elastic layer to form a nonsymmetrical laminated plate. Using the electro-elastic theory with the Kirchhoff-Love hypothesis, formulation of analyses for mechanical, electrical, and electromechanical characteristics of the laminae are presented. Numerical analysis was carried out using the extended Kantorovich method to yield eigenvalues and eigenfunctions. Theoretical predictions of dynamic characteristics were validated by comparing results with finite element analysis data. The calculated natural frequencies are presented in easy-to-use figures that are useful for sensor and actuator design in microelectromechanical systems (MEMS).
Keywords :
eigenvalues and eigenfunctions; elasticity; finite element analysis; laminates; micromechanical devices; piezoelectric materials; FEM; Kirchhoff-Love hypothesis; MEMS; actuator design; asymmetric rectangular piezoelectric laminae; clamped laminated plates; dynamic characteristics; eigenfunctions; eigenvalues; elastic layer; electrical characteristics; electro-elastic characteristics; electro-elastic theory; electrode piezoelectric layer; electromechanical characteristics; extended Kantorovich method; mechanical characteristics; microelectromechanical systems; natural frequencies; nonsymmetrical laminated plate; numerical analysis; sensor design; Actuators; Data analysis; Eigenvalues and eigenfunctions; Electrodes; Electromechanical sensors; Finite element methods; Frequency; Numerical analysis; Sensor phenomena and characterization; Sensor systems;
Journal_Title :
Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions on
