Modeling MEMS Resonators Past Pull-In

被引：19

作者：

Vyasarayani, Chandrika P. ^{[1
]}

Abdel-Rahman, Eihab M. ^{[1
]}

McPhee, John ^{[1
]}

Birkett, Stephen ^{[1
]}

机构：

[1] Univ Waterloo, Waterloo, ON N2L 3G1, Canada

来源：

JOURNAL OF COMPUTATIONAL AND NONLINEAR DYNAMICS | 2011年 / 6卷 / 03期

关键词：

CONTACT MODEL; ACTUATORS; DYNAMICS; DESIGN;

D O I：

10.1115/1.4002835

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

In this paper, we develop a mathematical model of an electrostatic MEMS (Micro-Electro-Mechanical systems) beam undergoing impact with a stationary electrode subsequent to pull-in. We model the contact between the beam and the substrate using a nonlinear foundation of springs and dampers. The system partial differential equation is converted into coupled nonlinear ordinary differential equations using the Galerkin method. A numerical solution is obtained by treating all nonlinear terms as external forces. We use the model to predict the contact length, natural frequencies, and mode shapes of the beam past pull-in voltage as well as the dynamic response of a shunt switch in a closing and opening sequence. [DOI: 10.1115/1.4002835]

引用

页数：7

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