On the Response of Clamped- Clamped Nano-Electro- Mechanical Beam under Mechanical Shock Incorporating the Casimir Force

In the current paper the effect of the Casimir force on the response of a fully clamped nanoelectro-mechanical beam under mechanical shock is studied. This model accounts for midplanestretching and applied axial loading. A Galerkin based reduced order modelling is utilized to solve the problem. It is found that considering the Casimir force and shock pulse interactionmay lead to early instability in nano-electro-mechanical devices through dynamicpull-in even in the case with no applied input voltage. The results are in good agreement with those presented in the literature for the case in which the effect of Casimir force has been neglected.

Keywords:

N/MEMS , Mechanical shock , Casimir force , Galerkin reduced order modeling