Dynamic Pull-In Investigation of a Clamped-Clamped Nanoelectromechanical Beam under Ramp-Input Voltage and the Casimir Force

被引：6

作者：

Askari, Amir R. ^{[1
]}

Tahani, Masoud ^{[1
]}

机构：

[1] Ferdowsi Univ Mashhad, Dept Mech Engn, Mashhad 917751111, Iran

来源：

SHOCK AND VIBRATION | 2014年 / 2014卷

关键词：

BEHAVIOR; MODEL;

D O I：

10.1155/2014/164542

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

The influence of the Casimir excitation on dynamic pull-in instability of a nanoelectromechanical beam under ramp-input voltage is studied. The ramp-input actuation has applications in frequency sweeping of RF-N/MEMS. The presented model is nonlinear due to the inherent nonlinearity of electrostatics and the Casimir excitations as well as the geometric nonlinearity of midplane stretching. A Galerkin based reduced order modeling is utilized. It is found that the calculated dynamic pull-in ramp input voltage leads to dynamic pull-in step input voltage by increasing the slope of voltage-time diagram. This fact is utilized to verify the results of present study.

引用

页数：5

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