Fundamental Behavior of Piezoceramic Sheet Actuators

Abstract

This paper investigates the behavior of piezoceramic sheet actuators under different types of excitation and mechanical loading. The research especially focuses on the application of these actuators to the development of smart rotor systems. The free strain response of the actuators under DC excitation is experimentally investigated along with the associated drift of the strain over time. Effect of tensile stress on the free strain response is examined. The magnitude and phase of the free strain response of the actuator under different excitation voltages and frequencies is measured, and a phenomenological model to predict this behavior is developed and validated. The power consumption of the free actuator and a pair of actuators surface bonded to a host structure is calculated by the impedance method and validated by measurement. Additionally, depoling of the actuators is discussed, along with the feasibility of recovering performance by repoling in the event of accidental depoling.

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References

IEEE Standard on Piezoelectricity. 1987. ANSI/IEEE., Std. 176.

Morgan Matroc Inc. Piezoceramic Databook. 1993. Morgan Matroc Inc., Electroceramics Division.

1997. Physik Instrumente (PI) Catalog, US-edition, Physik Instrumente (PI).

Brown, R. F. 1961. “Effect of two-dimensional mechanical stress on the dielectric properties of poled ceramic barium titanate and lead zirconate titanate,” Canadian Journal of Physics, 39:741-753.

Chen, P. C. and Chopra, I. 1997. “Hover Testing of Smart Rotor with Induced-Strain Actuation of Blade Twist,” AIAA Journal, 35(1).

Chopra, I. 1996. “Review of Current Status of Smart Structures and Integrated Systems,” SPIE Smart Structures and Integrated Systems, 2717:20-62.

Chopra, I. 1997. “Status of Application of Smart Structures Technology to Rotorcraft Systems,” Presented at the Innovations in Rotorcraft Technology, Royal Aeronautical Society, London, 2717:20-62.

Gerson, R. , Burlage, S. R. and Berlincourt, D. 1961. “Dynamic tensile stress of a Ferroelectric ceramic,” Journal of the Acoustical Society of America, 33(11):1483-1485.

Kreuger, H. H. A. 1967. “Stress sensitivity of piezoelectric ceramics, Part 1: Sensitivity to compressive stress parallel to the polar axis,” Journal of the Acoustical Society of America, 42(3):636-645.

10.

Kreuger, H. H. A. 1968. “Stress sensitivity of piezoelectric ceramics, Part 3: Sensitivity to compressive stress perpendicular to the polar axis,” Journal of the Acoustical Society of America, 43(3):583-591.

11.

Kreuger, H. H. A. and Berlincourt, D. 1961. “Effects of high static stress on the piezoelectric properties of transducer materials,” Journal of the Acoustical Society of America, 33(10):1339-1344.

12.

Li, S. , Cao, W. and Cross, L. E. 1991. “The extrinsic nature of nonlinear behavior observed in lead zirconate titanate ferroelectric ceramic,” Journal of Applied Physics, 69(10):7219-7224.

13.

Liang, C. , Sun, F. and Rogers, C. A. 1993. “Coupled electro-mechanical analysis of piezoelectric ceramic actuator driven systems—determination of the actuator power consumption and system energy transfer,” Proceedings of the SPIE Smart Structures and Intelligent Systems Symposium, 1917:286-298.

14.

Matsch, L. W. 1964. Capacitors, Magnetic Circuits and Transformers, Prentice-Hall Inc.

15.

Vigness, I. 1935. “Dilatations in Rochelle Salt,” Physical Review, 48:198-202.

16.

Woollett, R. S. and LeBlanc, C. L. 1973. “Ferroelectric Non-linearities in transducer Ceramics,” IEEE Transactions on Sonics and Ultrasonics, SU-20(1):24-31.

17.

Zhang, Q. M. , Zhao, J. , Uchino, K. and Zheng, J. 1997. “Change of the weak-field properties of Pb(Zr, Ti)O3 piezoceramics with compressive uniaxial stresses and its links to the effect of dopants on the stability of the polarizations in the materials,” Journal of Materials Research, 12(1):226-234.