Dynamic Stability of a Structurally Damped Delaminated Beam Using Higher Order Theory

Poloskei Tamas; Szekrenyes Andras

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Dynamic Stability of a Structurally Damped Delaminated Beam Using Higher Order Theory

机译：基于高阶理论的结构阻尼分层梁的动力稳定性

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The static and dynamic stability of the composite beam with a single delamination are investigated using the Timoshenko beam theory. The mechanical model is discretized using the finite element method and the equation of motion is obtained using Hamilton's principle. The coefficients of the mass and stiffness matrix for the damping matrix are determined using experimental modal analysis. The effect of harmonic excitation on the dynamic stability of a single delaminated composite beam is investigated using Bolotin's harmonic balancemethod. Thestability boundaries of the damped and undamped system are compared for different static load values and delamination lengths on the excitation frequency-excitation force amplitude parameter field.

机译：使用Timoshenko梁理论研究了具有单个分层的复合梁的静态和动态稳定性。使用有限元方法离散化机械模型，并使用汉密尔顿原理获得运动方程。使用实验模态分析确定阻尼矩阵的质量和刚度矩阵的系数。利用Bolotin的谐波平衡法研究了谐波激励对单个分层复合梁动力稳定性的影响。在激振频率-激振力幅度参数字段上，比较了不同静载荷值和分层长度时，阻尼和无阻尼系统的稳定性边界。

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《Mathematical Problems in Engineering》 |2018年第6期|2674813.1-2674813.15|共15页
作者
Poloskei Tamas; Szekrenyes Andras;
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Budapest Univ Technol & Econ, Dept Appl Mech, Muegyet Rkp 5, Budapest, Hungary;

Budapest Univ Technol & Econ, Dept Appl Mech, Muegyet Rkp 5, Budapest, Hungary;

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1. Dynamic Stability of a Structurally Damped Delaminated Beam Using Higher Order Theory [J] . Tams Plskei, Andrs Szekrnyes Mathematical Problems in Engineering: Theory, Methods and Applications . 2018,第4期

机译：基于高阶理论的结构阻尼分层梁的动力稳定性
2. Dynamic stability analysis of delaminated composite beams in frequency domain using a unified beam theory with higher order displacement continuity [J] . Poloskei Tamas, Szekrenyes Andras Composite Structures . 2021,第Sepa期

机译：利用统一波束理论具有高阶位移连续性频域分层复合梁的动态稳定性分析
3. An analytical framework to extend the general structural stability analysis by considering certain inelastic effects-theory and application to delaminated composites [J] . Koellner Anton, Voellmecke Christina Composite Structures . 2017,第JUNa期

机译：通过考虑某些非弹性效应来扩展一般结构稳定性分析的分析框架-理论及其在分层复合材料中的应用
4. Buckling and postbuckling of sandwich beams with delaminated faces based on higher order core theory [C] . R. F. Li, Y. Frostig, G.A. Kardomateas ASME International Mechanical Engineering Congress and Exposition . 1999

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5. Stability results for damped multilayer composite beams and plates. [D] . Allen, Aaron Andrew. 2009

机译：阻尼多层复合梁和板的稳定性结果。
6. A Critical Review of Nonlinear Damping Identification in Structural Dynamics: Methods Applications and Challenges [O] . Tareq Al-hababi, Maosen Cao, Bassiouny Saleh, 2020

机译：结构动力学中非线性阻尼识别的关键综述：方法应用和挑战
7. An analytical framework to extend the general structural stability analysis by considering certain inelastic effects—theory and application to delaminated composites [O] . Anton Köllner, Christina Völlmecke 2017

机译：通过考虑某些非弹性效应理论和应用于分层复合材料来扩展一般结构稳定性分析的分析框架

Dynamic Stability of a Structurally Damped Delaminated Beam Using Higher Order Theory

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