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首頁> 外文學位 >Free vibration analysis of tapered composite beams using hierarchical finite element method.

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Free vibration analysis of tapered composite beams using hierarchical finite element method.

機譯：漸進式組合梁的自由振動分析，采用層次有限元法。

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Compared with the conventional finite element method, hierarchical finite element method has the advantages of using fewer elements and obtaining better accuracy in the calculation of natural frequencies, buckling loads, displacements and stresses. These advantages are also shown in the analysis for uniform or thickness-tapered composite beams. In many of the existing works on the dynamic response, the effect on the mechanical behavior of plies in the tapered composite beam caused by the taper angle is ignored if the angle is small. In the present thesis, this effect is always considered and quantified based on the three-dimensional ply stiffness analysis. The free vibration response of tapered composite beam with different taper angles is studied. Also, based on the ply stiffness analysis, the response of the taper configuration and laminate configuration on the stiffness and vibration response of the tapered beam are studied. (Abstract shortened by UMI.)

機譯：與傳統的有限元方法相比，分層有限元方法的優點是使用更少的元素，并且在計算固有頻率，屈曲載荷，位移和應力時獲得了更高的精度。這些優點還顯示在分析均勻或厚度漸縮的復合梁時。在許多現有的動力響應研究中，如果錐角較小，則可以忽略錐角對錐狀復合梁中層板力學性能的影響。在本文中，總是基于三維層剛度分析來考慮和量化這種影響。研究了錐度不同的錐形組合梁的自由振動響應。此外，基于層剛度分析，研究了錐形構型和層壓構型對錐形梁剛度和振動響應的響應。（摘要由UMI縮短。）

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Chen, Lin.;
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Concordia University (Canada).;

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授予單位 Concordia University (Canada).;
學科 Engineering Mechanical.
學位 M.A.Sc.
年度 2005
頁碼 173 p.
總頁數 173
原文格式 PDF
正文語種 eng
中圖分類
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Free vibration analysis of tapered composite beams using hierarchical finite element method.

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