期刊文献+
共找到2篇文章
< 1 >
每页显示 20 50 100
静电MEMS开关的数学分析(英文)
1
作者 张瑞凤 赵乐 《应用数学》 CSCD 北大核心 2014年第1期56-64,共9页
本文研究在电压阶梯函数的驱动下,微电子机械系统含有阻尼项与不含阻尼项时的动态响应.对于受非线性弹性力作用的无阻尼静电开关系统,证明当电压低于临界值时,系统存在停滞时间、停滞位移;当电压高于临界值时,开关系统将在有限时间发生... 本文研究在电压阶梯函数的驱动下,微电子机械系统含有阻尼项与不含阻尼项时的动态响应.对于受非线性弹性力作用的无阻尼静电开关系统,证明当电压低于临界值时,系统存在停滞时间、停滞位移;当电压高于临界值时,开关系统将在有限时间发生短路.对于含阻尼项的系统,稳定的开关电压是有限值,此时系统的位移将接近初始驱动差距的1/3.进一步估计静电开关短路发生的时间. 展开更多
关键词 动态分析 静电开关 非线性弹性力 能量方法 渐近稳定性
在线阅读 下载PDF
Surface effects on large deflection of nanowires
2
作者 杨帆 《Journal of Central South University》 SCIE EI CAS CSCD 2015年第6期2060-2065,共6页
Surface effects play an important role in the mechanical behavior of nanosized structural elements owing to the increased ratio of surface area to volume. The surface effects on the large deflection of nanowires were ... Surface effects play an important role in the mechanical behavior of nanosized structural elements owing to the increased ratio of surface area to volume. The surface effects on the large deflection of nanowires were considered. Both geometric nonlinearity in finite deformation and surface effects at nanoscale were taken into account to analyze the bending of nanowires subjected to a concentrated force. For simply supported beams and clamped-clamped beams, the influence of surface effects and geometric nonlinearity were discussed in detail. It is found that both surface effects and geometric nonlinearity tend to decrease the deflection of bending nanowires and thus increase the effective elastic modulus of nanowires. Surface effects yield the size dependent behavior of nanowires. 展开更多
关键词 geometric nonlinearity NANOWIRES BENDING NANOWIRES BENDING surface effect
在线阅读 下载PDF
上一页 1 下一页 到第
使用帮助 返回顶部