| 复合材料薄壁杆的动力稳定性 |
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| 引用本文： | 茅人杰,李军,凌复华.复合材料薄壁杆的动力稳定性[J].上海交通大学学报,1990(Z1). |
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| 作者姓名： | 茅人杰 李军 凌复华 |
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| 作者单位： | 上海交通大学，上海交通大学，上海交通大学 |
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| 摘 要： | 本文利用一种考虑中面剪切的各向异性材料薄壁杆件理论,导出薄壁杆动力稳定性的基本方程.然后利用 Galerkin 方法把这些基本方程组化归一组 Mathi-eu 型方程.最后分别采用无限行列式法和数字法求出在参数平面内的不稳定区域.对两个简单例子的计算结果显示了各材料参数和载荷参数对动力不稳定区域的影响.
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| 关 键 词： | 复合材料 薄壁杆件 动力稳定性 |
Dynamic Stability of Thin-Walled Beams of Composite Material |
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| Mao Renjie Li Jun Ling Fuhua.Dynamic Stability of Thin-Walled Beams of Composite Material[J].Journal of Shanghai Jiaotong University,1990(Z1). |
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| Authors: | Mao Renjie Li Jun Ling Fuhua |
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| Institution: | Mao Renjie Li Jun Ling Fuhua |
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| Abstract: | A theory which takes into account the shear of the middle surface
and the anisotropy of the material is used in this paper to analyze the dy-
namic stability of thin-walled beams of composite material.The basic equa-
tions derived from the theory are reduced to a set of Mathieu's equations
with Galerkin's method.The instability regions of Mathieu's equation in the
parameter plane are determined with Hill's infinite-determinant method and
a numerical method.Numerical results of a circular cy lindrical tube with a
longitudinal seam and of one without seam show the effects of material and
loadp arameters on the instability regions. |
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| Keywords: | composite materials thin-walled beams dynamic stability |
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