Title :
Nonlinear characteristics of a circular plate piezoelectric harvester with relatively large deflection near resonance
Author :
Xue, Huan ; Hu, Hongping
Author_Institution :
Dept. of Mech., Huazhong Univ. of Sci. & Technol, Wuhan
fDate :
9/1/2008 12:00:00 AM
Abstract :
Based on the von Karman thin circular plate theory, we report in this paper the analysis of the nonlinear behavior of a power harvester consisting of a circular piezoelectric plate and an electric resistance. Dependence of the output power of the harvester upon driving frequency for different electric loads and different applied forces is obtained. Numerical results show that the output power exhibits multi- valuedness and a jump phenomenon near resonance.
Keywords :
piezoelectric devices; piezoelectricity; circular plate piezoelectric harvester; large deflection near resonance; power harvester; von Karman thin circular plate theory; Capacitive sensors; Dielectric constant; Electric potential; Equations; Frequency; Power capacitors; Resonance; Stress; Thyristors; Voltage; Acoustics; Electric Power Supplies; Energy Transfer; Equipment Design; Equipment Failure Analysis; Micro-Electrical-Mechanical Systems; Nonlinear Dynamics; Reproducibility of Results; Sensitivity and Specificity; Transducers; Vibration;
Journal_Title :
Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions on
