Surface/interface approach in pull-in instability and nonlinear vibration analysis of fluid-conveying piezoelectric nanosensor

• Sayyid H. Hashemi Kachapi ^[1]
  1. [1] University of Technology

     University of Technology

     Rusia

     
• Localización: Mechanics based design of structures and machines, ISSN 1539-7734, Vol. 50, Nº. 3, 2022, págs. 741-766
• Idioma: inglés
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• Resumen

  • In present work, pull-in instability and nonlinear vibration analysis of fluid-conveying piezoelectric nanosensor (FCPENS) subjected to nonlinear electrostatic and harmonic excitations and viscoelastic foundation are investigated using Gurtin-Murdoch surface/interface (GMSIT) theory.

    For this purpose, Hamilton’s principle, Galerkin approach, Complex averaging and arc-length continuation methods are used to obtain governing equations, boundary conditions (BC) and also to achieve the effect of surface/interface parameters for pull-in instability and nonlinear vibration analysis of FCPENS. It is found that with considering the surface/interface effects, due to increasing of nanoshell stiffness, all nonlinear behavior significantly decrease relative to the case of without surface/interface effects