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Structural Engineering and Mechanics
  Volume 85, Number 2, January25 2023 , pages 247-263

The influence of the coupling effect of physical-mechanical fields on the forced vibration of the hydro-piezoelectric system consisting of a PZT layer and a viscous fluid with finite depth
Zeynep Ekicioglu Kuzeci and Surkay D. Akbarov

    The paper deals with the study of the mechanical time-harmonic forced vibration of the hydro-piezoelectric system consisting of the piezoelectric plate and compressible viscous fluid with finite depth. The exact equations of motion of the theory of linear electro-elasticity for piezoelectric materials are employed for describing the plate motion, however, the fluid flow is described by employing the linearized Navier-Stokes equations for a compressible (barotropic) viscous fluid. The plane-strain state in the plate and the plane flow of the fluid are considered and the corresponding mathematical problems are solved by employing the Fourier transform with respect to the space coordinate which is on the coordinate axis directed along the platelying direction. The expressions of the corresponding Fourier transform are determined analytically, however, the inverse transforms are found numerically. Numerical results on the interface pressure and the electrical potential are obtained for various PZT materials and these results are discussed. According to these results, in particular, it is established that the electromechanical coupling effect can significantly decrease the interface pressure.
Key Words
    compressible viscous fluid; electric potential; mechanical forced vibration; piezoelectric plate; plate -fluid interaction pressure
Zeynep Ekicioglu Kuzeci: Department of Mechanical Engineering, Kirsehir Ahi Evran University, 40100, Kirsehir, Turkey
Surkay D. Akbarov: Department of Mechanical Engineering, Yildiz Technical University, 34349, Besiktas, Istanbul, Turkey; Institute of Mathematics and Mechanics of the National Academy of Sciences of Azerbaijan, AZ1141, Baku, Azerbaijan

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