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