基于非局部弹性理论的纳米开关失稳特性研究  

The instability characteristic researched of nano-switch with nonlocal elasticity theory

作　　者：周霓[1] 罗光兵[2] 蒋浩宏 白胜[1] 阳圣莹[1] 

机构地区：[1]四川省农业科学院服务中心,成都610066 [2]成都铁路局成都动车段动车技术中心,成都610051

出　　处：《现代制造工程》2017年第2期122-126,共5页Modern Manufacturing Engineering

基　　金：四川省农业科学院自主课题(2015QNJJ-023)

摘　　要：对纳米开关在静电力和分子力作用下的稳定特性进行了研究,给出了非局部弹性理论下的非线性控制方程和边界条件。采用满足载荷边界条件的线性分布载荷近似代替非线性的静电力和分子力的作用,求得了纳米开关的失稳电压。同时研究了纳米开关无电场力时,仅在分子力作用下达到失稳的最小间隙和最大长度。Investigated the instability Characteristic of nano-switch subjected to an electrostatic force due to an applied voltage and intermolecular force in. Both the nonlinear governing equation an boundary conditions with nonlocal effect are devised. A linear load model which is suit for foundry conditions is proposed to approximate with nonlinear intermolecular and electrostatic interac- tions,the pull-in voltages of nano-switch are obtained. The smallest of gap radio and the longest of length are discussed only with intermolecular force as well.

关 键 词：纳米开关 非局部弹性理论 小尺度效应 

分 类 号：TH703[机械工程—仪器科学与技术]