Nonlinear piezoelectric behavior of ceramic bending mode actuators under strong electric fields

The nonlinear electromechanical behavior of cantilevered piezoelectric ceramic bimorph, unimorph, and reduced and internally biased oxide wafer actuators is studied in a wide electric field and frequency range. It is found that under quasistatic condition, linear relationships between actuator tip displacement-electric field, and blocking force-electric field are only valid under weak field driving. With increasing the driving field, electromechanical nonlinearity begins to contribute significantly to the actuator performance because of ferroelectric hysteresis behavior associated with piezoelectric lead zirconate titanate (PZT)-type ceramic materials. The bending resonance frequencies of all these actuators vary with the magnitude of the electric field. The decrease of resonance frequency with electric field is explained by the increase of elastic compliance of PZT ceramic due to elastic nonlinearity. Mechanical quality factors of the actuators also depend on the magnitude of electric field strength. No ...

[1]  L. E. Cross,et al.  Electromechanical coupling and output efficiency of piezoelectric bending actuators , 1999, IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control.

[2]  L. E. Cross,et al.  Performance analysis of piezoelectric cantilever bending actuators , 1998 .

[3]  L. E. Cross,et al.  Determination of Young’s modulus of the reduced layer of a piezoelectric RAINBOW actuator , 1998 .

[4]  Kenji Uchino,et al.  Heat generation in multilayer piezoelectric actuators , 1996 .

[5]  Leslie E. Cross,et al.  Piezoelectric air transducer for active noise control , 1996, Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring.

[6]  H. B. Strock,et al.  Emerging smart materials systems , 1996 .

[7]  Gene H. Haertling,et al.  Chemically reduced plzt ceramics for ultra-high displacement actuators , 1994 .

[8]  Gene H. Haertling,et al.  Rainbow Ceramics-A New Type of Ultra-High-Displacement Actuator , 1994 .

[9]  Manabu Aoyagi,et al.  Measuring Methods for High–Power Characteristics of Piezoelectric Materials , 1994 .

[10]  Leslie E. Cross,et al.  THE EXTRINSIC NATURE OF NONLINEAR BEHAVIOR OBSERVED IN LEAD ZIRCONATE TITANATE FERROELECTRIC CERAMIC , 1991 .

[11]  J.G. Smits,et al.  The constituent equations of piezoelectric heterogeneous bimorphs , 1991, IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control.

[12]  J. G. Smits,et al.  The constituent equations of piezoelectric bimorphs , 1989, Proceedings., IEEE Ultrasonics Symposium,.

[13]  E. Crawley,et al.  Use of piezoelectric actuators as elements of intelligent structures , 1987 .

[14]  M. D. Bryant,et al.  A characterization of the linear and non-linear dynamic performance of a practical piezoelectric actuator part 1: Measurements , 1986 .

[15]  Sadayuki Takahashi,et al.  Multilayer Piezoelectric Ceramic Actuators and Their Applications , 1985 .

[16]  Horst Beige,et al.  Electromechanical resonances for investigating linear and nonlinear properties of dielectrics , 1982 .

[17]  P. G. Harper,et al.  The piezoelectric bimorph: An experimental and theoretical study of its quasistatic response , 1978 .