| 具脱层轴对称层合圆柱壳的振动模态分析 |
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| 引用本文： | 杨金花,傅衣铭.具脱层轴对称层合圆柱壳的振动模态分析[J].应用力学学报,2007,24(4):509-513. |
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| 作者姓名： | 杨金花 傅衣铭 |
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| 作者单位： | 1. 湖南大学,长沙,410082;长沙理工大学,410076,长沙
2. 湖南大学,长沙,410082 |
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| 摘 要： | 对具环向贯穿脱层的轴对称层合圆柱壳进行振动模态分析.首先,采用Heaviside阶梯函数,构造了一种适合于脱层壳的位移模式.通过对脱层壳的能量分析,应用瑞利--里兹法后,得到用时间函数表示的系统振动控制方程,然后对其求解,得到脱层壳模态分析的特征方程式.算例中,讨论了不同的脱层位置、脱层大小和脱层深度对脱层壳振动模态的影响.
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| 关 键 词： | 脱层 层合圆柱壳 模态分析 瑞利-里兹法 |
| 文章编号： | 1000-4939(2007)04-0509-05 |
| 修稿时间： | 2005年9月14日 |
Modal Analysis of Axisymmetrical Laminated Cylindrical Shell with Delamination |
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| Yang Jinhua,Fu Yiming.Modal Analysis of Axisymmetrical Laminated Cylindrical Shell with Delamination[J].Chinese Journal of Applied Mechanics,2007,24(4):509-513. |
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| Authors: | Yang Jinhua Fu Yiming |
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| Abstract: | The vibrating modal analysis of axisymmetrical laminated cylindrical shells with throughout circumference delamination is investigated.Adopting the Heaviside step functions,the displacement components suitable for delaminated cylindrical shell are constructed,and the total potential energy of delaminated shell is analyzed to deduce the system vibration governing equations with Rayleigh-Ritz method.The eigen-equations of modal analysis for the delaminated shell are then determined.The effects of various positions,sizes and depths of the delamination on the vibrating modal of delaminated cylindrical shell are discussed in the numerical examples. |
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| Keywords: | delamination laminated cylindrical shell modal analysis Rayleigh-Ritz method |
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