Application of Homotopy Analysis Method for the Pull-In and Nonlinear Vibration Analysis of Nanobeams Using a Nonlocal Euler-Bernoulli Beam Model

作者：Samadani F; Moradweysi P; Ansari R; Hosseini K; Darvizeh A

来源：Zeitschrift fur Naturforschung Section A-A Journal of Physical Sciences, 2017, 72(12): 1093-1104.

DOI：10.1515/zna-2017-0174

<jats:title>Abstract</jats:title><jats:p>In this investigation, the homotopy analysis method (HAM) is utilized for the pull-in and nonlinear vibration analysis of nanobeams based on the stress-driven model (SDM) of nonlocal elasticity theory. The physical properties of nanobeams are assumed not to vary through the thickness. The nonlinear equation of motion and the corresponding boundary condition are derived on the basis of the Euler–Bernoulli beam theory. For the solution purpose, the Galerkin method is employed for reducing the nonlinear partial differential equation to a nonlinear ordinary differential equation in the time domain, and then, the resulting equation is analytically solved using the HAM. In the results section, the influences of different parameters, including nonlocal parameter, electrostatic and intermolecular van der Waals forces and fringing field effect changes on the pull-in and nonlinear vibration response are investigated.</jats:p>

• 出版日期2017-12