On sixfold coupled vibrations of thin-walled composite box beams

Thuc Phuong Vo; Jaehong Lee; Namshik Ahn

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On sixfold coupled vibrations of thin-walled composite box beams

机译：薄壁组合箱梁的六重耦合振动

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This paper presents a general analytical model for free vibration of thin-walled composite beams with arbitrary laminate stacking sequences and studies the effects of shear deformation over the natural frequencies. This model is based on the first-order shear-deformable beam theory and accounts for all the structural coupling coming from the material anisotropy. The seven governing differential equations for coupled flexural-torsional-shearing vibration are derived from the Hamilton's principle. The resulting coupling is referred to as sixfold coupled vibration. Numerical results are obtained to investigate the effects of fiber angle, span-to-height ratio, modulus ratio, and boundary conditions on the natural frequencies as well as corresponding mode shapes of thin-walled composite box beams.

机译：本文提出了一种薄壁复合梁自由振动的通用分析模型，该梁具有任意的层合堆叠顺序，并研究了剪切变形对固有频率的影响。该模型基于一阶剪切可变形梁理论，并考虑了来自材料各向异性的所有结构耦合。弯曲-剪切-剪切振动耦合的七个控制微分方程是根据汉密尔顿原理导出的。所产生的耦合称为六重耦合振动。获得了数值结果，以研究纤维角，跨距高比，模量比和边界条件对薄壁复合箱形梁的固有频率以及相应的振型的影响。

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来源
《Composite Structures》 |2009年第4期|524-535|共12页
作者
Thuc Phuong Vo; Jaehong Lee; Namshik Ahn;
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作者单位

Department of Architectural Engineering, Sejong University, 98 Kunja Dong, Kwangjin Ku, Seoul 143-747, Republic of Korea;

Department of Architectural Engineering, Sejong University, 98 Kunja Dong, Kwangjin Ku, Seoul 143-747, Republic of Korea;

Department of Architectural Engineering, Sejong University, 98 Kunja Dong, Kwangjin Ku, Seoul 143-747, Republic of Korea;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种 eng
中图分类
关键词
thin-walled composite beams; shear deformation; sixfold coupled vibrations;

机译：薄壁复合梁;剪切变形六重耦合振动;

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2. A closed-form approximate solution for coupled vibrations of composite thin-walled beams with mid-plane symmetry [J] . Proki? Aleksandar, Foli? Radomir, Mili?i? Ilija Technical Gazette . 2013,第5期

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3. On triply coupled vibrations of axially loaded thin-walled composite beams [J] . Thuc Phuong Vo, Jaehong Lee, Kihak Lee Computers & Structures . 2010,第3a4期

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4. On the Modeling of Coupled Vibration of Rotating Thin-Walled Closed-Section Composite Beams [C] . Yongsheng Ren, Xianghong Du, Wenli Yao AME 2010;International conference on advanced mechanical engineering . 2010

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7. On sixfold coupled vibrations of thin-walled composite box beams [O] . Thuc Phuong Vo, Jaehong Lee 2016

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8. Vibrational behavior of adaptive aircraft wing structures modelled as composite thin-walled beams [R] . Song, O., Librescu, L., Rogers, C. A. 1992

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On sixfold coupled vibrations of thin-walled composite box beams

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