Dynamic behaviors for the graphene nano/microelectromechanical system in a fractal space

Abstract

The microelectromechanical devices have triggered rocketing interest in various advanced technologies, that is, sensors, material science, and energy harvesting, and now the devices tend to a nanoscale size, making the technology much more attractive in both academic and industrial communities. This paper takes a graphene nano/microelectromechanical system as an example to study its dynamical property, which is the foundation for the optimal design and reliable operation. As the system is inextricably complex with singularity and zero conditions in a fractal space, the iteration perturbation method is used to obtain the periodic solution of the system. The results show clearly the low-frequency property of the system and pull-in instability; furthermore, the fractal dimension affects greatly the system’s dynamical property.

Pull-down plateau of a Toda-like fractal-fractional oscillator and its application in grass carp’s roes’ agglomeration

“…However, sometimes its motion characteristics will be suddenly changed and become unstable after a seemingly periodic motion, eventually the periodic motion is prohibited. 21,22 This phenomenon is called as the pull-down instability by Professor He, 23 and the nonlinear vibration systems with quadratic nonlinearities 7,24,25 always lead to a pull-down instability.…”