INVESTIGATION OF ELASTIC FOUNDANTIONS ON PULL-IN PHENOMENON OF DOUBLE CANTILEVER NANOSWITCHES IN PRESENCE OF CASIMIR FORCES

ABSTRACT In this paper, we study the instability of double cantilever type nanoelectromechanical systems (NEMS) supported on nonlinear elastic foundations in presence of casimir forces. Modified Adomian decomposition (MAD) is introduced to investigate the pull in parameters. pull in parameters are investigated for difference stiffness parameter of nonlinear elastic foundations and it is found that the nonlinear elastic foundations increases the pull-in voltage but the effect of nonlinear elastic foundations on the pull in deflection of double cantilevernanoswitches is weak. In modeling of the electrostatic force, the fringing field effect is taken into account. The results of analytical MAD solutions are in good agreement with the numerical one