Position: Home > Articles > Size-dependent Free Vibration Analysis of Micro-laminated Reddy Beam Based on the Global-local Theory
Journal of Heilongjiang Bayi Agricultural University
2017,29
(1)
105-109
基于整体与局部理论细观Reddy层合梁振动尺度效应分析
作 者：
司俊岭;刘少东;沙龙
单 位：
黑龙江八一农垦大学工程学院
关键词：
层合梁;整体与局部理论;偶应力理论;尺度效应;自由振动
摘 要：
针对经典力学理论无法反映细观层合梁振动尺度效应的问题,提出细观reddy层合梁振动模型。基于整体与局部理论,建立层合梁位移函数,基于新修正偶应力理论,引入细观材料长度参数詛。通过哈密尔顿原理和变分原理,推导出了含有细观材料长度参数詛的振动控制方程和边界条件。最后通过算例表明:在偶应力的影响下,此模型能够反映出细观层合梁振动尺度效应。
译 名：
Size-dependent Free Vibration Analysis of Micro-laminated Reddy Beam Based on the Global-local Theory
作 者：
Si Junling;Liu Shaodong;Sha Long;College of Engineering,Heilongjiang Bayi Agricultural University;
关键词：
composite laminated beam;;the global-local theory;;couple-stress theory;;size-dependent;;free vibration
摘 要：
Because the conventional continuum theory couldn't explain the scale effects of micro-laminated beam,the model of micro-laminated reddy beam was presented.Based on the global-local theory,the displacement function of laminated beam was built.According to the new modified couple stress theory,the material length-scale parameter 詛 was introduced.In terms of the Hamilton's principle and variational principle,the vibration equations of the laminated beam and the boundary conditions including the parameter 詛 were deduced.Finally,numerical results of an example showed that the scale effects of the natural frequencies of the composite laminated beam could be reflected by the developed beam model.
导出引用
计量
文章访问数: 12
HTML全文浏览量: 0
PDF下载量: 0
所属期刊
