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总览 评价 周莎莎 1, , 周慎杰 1,* , 李安庆 1, , 王炳雷 2, ( 1、 机械工程学院,山东大学,250061; 2、 土木工程学院,山东大学,250061; ) 摘要: 本文发展了考虑上下表面不同表面效应的圆形纳米板分析模型并讨论了纳米圆板固有频率的尺寸依赖
周莎莎1,, 周慎杰1,*, 李安庆1,, 王炳雷2,
(
1、机械工程学院,山东大学,250061; 2、土木工程学院,山东大学,250061; )
摘要:
本文发展了考虑上下表面不同表面效应的圆形纳米板分析模型并讨论了纳米圆板固有频率的尺寸依赖性。基于薄板理论与表面连续弹性理论推导了纳米圆板的控制方程。将数值结果与已有文献进行对比,结果表明,上下表面具有不同表面效应会使纳米圆板固有频率的尺寸依赖性与上下表面具有相同表面效应时不同。这项研究将对基于纳米圆板的微生化传感器的设计与相关研究提供参考。
关键词:
关固体力学;纳米板;表面效应;动态特性
ZHOU Shasha1,, ZHOU Shenjie1,*, LI Anqing1,, WANG Binglei2,
(
1、Mechanical Engineering School, Shandong University, 250061; 2、Civil Engineering School, Shandong University, 250061; )
Abstract:
In this paper, an analytical model of a circular nanoplate including different surface effects on the top and bottom layers is developed, which can be provided to discuss the size-dependent natural frequency of the nanoplate. The governing equation of the circular nanoplate is derived based on the plate theory and the continuum surface elasticity theory. Numerical results are obtained and compared with the previous literature. The results shown that the different surface properties of the top and bottom layers result in the different size-dependence of the natural frequency from the same surface properties of the nanoplate. This study might be helpful for the design of nanoplate-based resonant micro-biochemical sensors and some related researches.
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