非局部因子和表面效应对微纳米材料振动特性的影响被引量：6

Surface Effects of Adsorption-Induced Resonance Analysis of Micro/Nanobeams via Nonlocal Elasticity

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摘要基于非局部理论和表面效应模型,导出表面吸附物对微纳米材料的动力学方程,研究非局部因子和表面能对微纳米传感器振动特性的影响.结果显示,非局部因子、表面能、吸附物种类、附加刚度和基底种类对微纳米结构的振动特性有重要影响. The governing differential equation of micro/nanobeams with atom/molecule adsorp- tion was derived in presence of surface effects using the nonlocal elasticity. The effects of non- local parameter, adsorption density and the surface parameter on resonant frequency of the mi- cro/nanobeams were investigated. It is found that, in addition to the nonlocal parameter and surface parameter, the bending rigidity and the adsorption-induced mass exhibit different be-haviors with the increase of adsorption density depending on the adatom category and the sub- strate material.

作者徐晓建邓子辰

机构地区西北工业大学工程力学系大连理工大学工业装备结构分析国家重点实验室

出处《应用数学和力学》 CSCD 北大核心 2013年第1期10-17,共8页 Applied Mathematics and Mechanics

基金国家基础研究计划973基金资助项目(2011CB610300) 111引智计划基金资助项目(B07050) 国家自然科学基金资助项目(10972182 11172239 10902089) 高校博士点基金资助项目(20106102110019) 大连理工大学工业装备结构分析国家重点实验室开放基金资助项目(GZ0802) 西北工业大学博士论文创新基金(CX201111)的资助

关键词微纳米机电系统(MEMS NEMS)传感器非局部理论表面效应振动特性原子分子吸附 micro-and mano-electromechanic system （NEMS/MEMS） sensors nonlocal elas-ticity surface effects vibration atom/molecular adsorption

分类号 TB123 [理学—工程力学] TB34 [一般工业技术—材料科学与工程]

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