Divergence and flutter behavior of Beck׳s type of laminated box beams
Divergence and flutter behavior of Beck׳s type of laminated box beams
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Beck型叠合箱梁的发散和颤振行为
DOI：
10.1016/j.ijmecsci.2014.04.014
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发表时间：
2014
影响因子：
7.3
通讯作者：
Jaehong Lee
中科院分区：
文献类型：
--
作者：
Nam;Jaehong Lee
基于有限元模型，研究了贝克组合梁的散度和颤振特性。基于与弗拉索夫梁理论一致的运动学假设，给出了非对称叠合箱梁的力学问题。获得质量、弹性刚度、几何刚度-阻尼-汉密尔顿和负载调整矩阵,扩展׳年代原则是使用。简要介绍了考虑和不考虑阻尼作用时散度和颤振临界值的计算方法。通过数值算例，给出了纤维角度变化、非保守参数、外部（粘性流体）和内部（材料）阻尼对受切向力作用的叠合箱梁散度和颤振载荷的影响。
The divergence and flutter behavior of Beck׳s type of laminated box beams are investigated based on the finite element model. Mechanics of laminated box beam with non-symmetric lay-up is presented based on kinematic assumptions consistent with Vlasov beam theory. To obtain mass-, elastic stiffness-, geometric stiffness-, damping-, and load correction matrices, the extended Hamilton׳s principle is employed. Evaluation procedures for critical values of divergence and flutter with and without damping effects are briefly introduced. Through numerical examples, influences of fiber angle change, non-conservative parameter, external (viscous fluid) and internal (material) damping on divergence and flutter loads of laminated box beams subjected to a subtangential force are newly presented.
流体泥浆的特性及其在地质分析中的作用
DOI：
--
发表时间：
2009
期刊：
地質学雑誌 115(印刷中)
影响因子：
--
作者：
本吉弘岐;青木輝夫;谷川朋範;堀雅裕;門崎学;藤田耕史;平沢尚彦;ほか;西田尚央・伊藤慎;西田尚央・伊藤慎
通讯作者：
西田尚央・伊藤慎