WSEAS Transactions on Applied and Theoretical Mechanics
Print ISSN: 1991-8747, E-ISSN: 2224-3429
Volume 14, 2019
Nonclassical Vibration Analysis of Piezoelectric Nanosensor Conveying Viscous Fluid
Author: Sayyid H. Hashemi Kachapi
Abstract: In this paper, the natural frequency, critical fluid velocity and stability analysis of piezoelectric biomedical nanosensor (PBMNS) based on cylindrical nanoshell conveying viscous fluid is investigated using the electro-elastic Gurtin–Murdoch surface/interface theory. This system subjected to nonlinear electrostatic field and viscoelastic medium including visco-pasternak and damping coefficients. Hamilton’s principle and the assumed mode method combined with Euler – Lagrange is used for the governing equations and boundary conditions. It is shown that fluid velocity due to motion of biomarkers has major unpredictable effects on natural frequency and critical fluid velocity of the system and one should precisely consider their effects
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Keywords: Piezoelectric biomedical nanosensor, Natural frequency, Instability, Critical fluid velocity, Nanoshell, Gurtin–Murdoch surface/interface theory, Electrostatic force, Visco-Pasternak medium
Pages: 252-271
WSEAS Transactions on Applied and Theoretical Mechanics, ISSN / E-ISSN: 1991-8747 / 2224-3429, Volume 14, 2019, Art. #28