考虑纳米颗粒增强相作用的梁结构动态位移计算

IF 5.3 Q1 ENGINEERING, MECHANICAL International Journal of Hydromechatronics Pub Date : 2019-10-07 DOI:10.1504/ijhm.2019.102891
M. Ghaitani
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引用次数: 3

摘要

本文研究了地震荷载作用下纳米颗粒支梁的动力响应。采用梁的双曲理论对梁进行建模。利用Mori-Tanaka方法,获得了光束的特性。本文假设了纳米颗粒的团聚现象,这是本研究的新颖之处之一。利用哈密顿原理,计算了运动最终方程。采用数值方法和Newmark法求解动位移。该方法具有迭代性,利用MATLAB软件进行多次迭代即可收敛。研究了纳米颗粒团聚、体积分数和几何变量对梁动位移的影响。结果表明,纳米颗粒可以减小动态挠度。
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Dynamic displacement calculation in beams structures considering the effect of nanoparticles as reinforcement phase
Here, dynamic response of beam armed by nanoparticles under the seismic load is presented. The hyperbolic theory of beam is utilised for modelling of beam. Utilising the Mori-Tanaka approach, the properties of the beam is obtained. The agglomeration of nanoparticles is assumed in this article which is one of the good novelties of work. Utilising principle of Hamilton, the motion final equations are calculated. A numerical approach and method of Newmark are utilised for obtaining the dynamic displacement. This method is iterative and may be converged after several iteration utilising the MATLAB software. The influences of nanoparticles agglomeration and volume fraction and geometrical variables are presented on the dynamic displacement of the beam. The outcomes present that the nanoparticles may reduced the dynamic deflection.
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来源期刊
CiteScore
7.60
自引率
0.00%
发文量
32
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