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

Abstract

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

Keywords:

• Pull-in instability
• nonlinear frequency response
• fluid-conveying piezoelectric nanosensor
• Gurtin–Murdoch surface/interface theory
• arc-length continuation
• electrostatic excitation

Conflict of interest

No potential conflict of interest was reported by the author(s).

Funding

This research received no specific grant from any funding agency in the public, commercial, or not-for-profit sectors.