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| 具任意脱层复合材料梁的模态分析 | |
| 引用本文： | 罗松南,曹志远,傅衣铭.具任意脱层复合材料梁的模态分析[J].振动与冲击,2002,21(2):15-17,10. |
| 作者姓名： | 罗松南 曹志远 傅衣铭 |
| 作者单位： | 1. 同济大学工程力学与技术系,固体力学教育部重点实验室,上海,200092;湖南大学,工程力学系,长沙,410082 2. 同济大学工程力学与技术系,固体力学教育部重点实验室,上海,200092 3. 湖南大学,工程力学系,长沙,410082 |
| 基金项目： | 国家自然科学基金 (1 9872 0 2 2 4 )资助项目 |
| 摘 要： | 本文对具任意脱层的复合材料梁进行了模态分析。基于弹性理论建立了考虑剪切变形时复合材料脱层梁的基本方程式。对脱层梁进行了分区处理，方便地描述了脱层长度，脱层位置。利用边界条件，区间位移连续性条件和内力平衡条件建立了梁模态分析的特征方程式。通过实例计算，得出了不同脱层位置和不同脱层长度对脱层梁模态分析的影响。 |
| 关 键 词： | 脱层结构 复合材料梁 模态分析 剪切变形 动力特性 结构振动 |
Modal Analysis of Composite Beams with Arbitrary Delamination |
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| Luo Songnan , Cao Zhiyuan Fu Yiming.Modal Analysis of Composite Beams with Arbitrary Delamination[J].Journal of Vibration and Shock,2002,21(2):15-17,10. | |
| Authors: | Luo Songnan Cao Zhiyuan Fu Yiming |
| Affiliation: | Luo Songnan 1,2 Cao Zhiyuan 1 Fu Yiming 2 |
| Abstract: | In the paper,the modal analysis of compostie beams with arbitrary delamination is investigated.with considering the transverse shear,the govrning equations are built on the basis of elasticity theory.The different sizes and positions of delamination are described in accordance with the different regions devided in the beam.The characteristic equations in modal analysis are established by using the boundary conditions,continuous conditions of the displacements and equilibrium conditions of the shearing forces and moments in each region.The effects of different positions and sizes of delamination on modal analysis of beams are given in examples. |
| Keywords: | delaminated construction composite beam mode analysis |
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