Title :
Study on piezoelectric ceramic/metal composite thin plate of driving stator for travelling-wave motor
Author :
Dong, Shuxiang ; Li, Longtu ; Zhang, Xiaowen
Author_Institution :
Dept. of Mater. Sci. & Eng., Tsinghua Univ., Beijing, China
Abstract :
In this paper the solution of general problems of the bending vibration of the thin piezoelectric ceramic/metal composite plate of a driving stator for a travelling-wave motor was analysed. Considering the electromechanical coupling effect, the concepts of generalized stress and strain and generalized piezoelectric equations were introduced. The relation of generalized stress and strain, satisfying the differential motion equation of the thin composite plate were derived. Using the finite element method, the vibration mode of the composite plate for a travelling-wave motor was calculated, considering the electromechanical coupling. A theoretical basis was provided for optimizing the design of ultrasonic motors
Keywords :
composite materials; finite element analysis; piezoceramics; stators; stress-strain relations; ultrasonic motors; vibrations; bending vibration; differential motion equation; driving stator; electromechanical coupling effect; finite element method; piezoelectric ceramic/metal composite thin plate; piezoelectric equations; strain; stress; travelling-wave motor; ultrasonic motor design; Capacitive sensors; Ceramics; Couplings; Differential equations; Integral equations; Materials science and technology; Poisson equations; Stators; Stress; Voltage;
Conference_Titel :
Applications of Ferroelectrics, 1994.ISAF '94., Proceedings of the Ninth IEEE International Symposium on
Conference_Location :
University Park, PA
Print_ISBN :
0-7803-1847-1
DOI :
10.1109/ISAF.1994.522475
