Calculation of cylindrical multilayer electromechanical transducer at different polarization types in nonstationary modes.
DOI:
https://doi.org/10.15276/opu.1.54.2018.01Keywords:
piezoceramic transducer, non-stationary oscillations, electrical disturbances, multilayer piezoelectric element, polarization directionAbstract
Numerical research method for oscillations of cylindrical multilayer electromechanical transducers with electrode conjugation surfaces at electrical disturbances is developed. Electromechanical state parameters of transducer depending on the number of electrode layers and polarization direction are investigated dynamically. Dependence of the radial oscillations frequency on geometric dimensions and proportionality between amplitude values of displacements and stresses in cylinders with oncoming polarization layers and the number of layers are established. Correlation between outer surface oscillations and cylinder inner opening size is studied.
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References
Babayev A.E. (1990). Unsteady waves in continuous media with a system of reflective surfaces. Kyiv: Naukova Dumka.
Busch-Vishniac I.J. (1999). Electromechanical Sensors and Actuators. New York: Springer.
Guz A.N., Kubenko V.D. & Babayev A.E. (1984). Hydroelasticity of shell systems. Kiev: High School.
Kubenko V.D. (1979). Nonstationary interaction of structural elements with the environment. Kiev: Naukova Dumka.
Shul’ga N.А. & Grigor’eva L.О. (2009). Radial electroelastic nonstationary vibration of a hollow piezoceramic cylinder subject to electric excitation. International Applied Mechanics, 45, 2, 134–138.
Ding H.J., Wang H.M. & Hou P.F. (2003). The transient responses of piezoelectric hollow cylinders for axisymmetric plain strain problems. Int. J. of Solids and structures, 40, 105–123.
Shulga M.O. & Grigoryeva L.O. (2010). Electromechanical unstationary thickness vibrations of piezoceramic transformers at electric excitation. Mechanical Vibrations: Types, Testing and Analysis, 179–204.
Shul'ga N.A. & Grigor'eva L.O. (2011). Comparative Analysis of the Electroelastic Thickness Vibrations of Layers with Curved Boundaries. International Applied Mechanics, 47, 2, 177–185.
Yu J., Ma Q., & Su Sh. (2008). Wave propagation in non-homogeneous magneto-electro-elastic hollow cylinders. Ultrasonics, 48, 8, 664–677.
Grigorenko A.Ya. & Loza I.A. (2011). Axisymmetric waves in layered hollow cylinders with piezoceramic radially polarized layers. Problems of Computational Mathematics and Strength of Construction, 17, 87–95
