This paper aims to develop an effective multiscale simulation technique for the deformation analysis of nanotube-based
nanoswitches. In the multiscale simulation, the key material parameters, (e.g., Young's modulus and moment of inertia)
are extracted from the MD simulation which can explore the atomic properties. Then, the switches are simplified to
continuum structure which is discretized and simulated by the advanced RBF meshfree formulation. The system of
equations is nonlinear because the nonlinear loading is calculated from coupled the electrostatic, the elastostatic, and the
van der Waals energy domains. Besides the normal deformation analysis, the pull-in voltage characteristics of different
nanoswitches based on the double-walled nanotubes are analyzed. Comparing with the results in the literature and from
experiments, it has proven that the developed multiscale approach is accurate and efficient.