| 加劲柱壳结构外压屈曲问题的柱壳有限条元法 |
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| 引用本文： | 张多新,王卫平,施兴会,刘东常. 加劲柱壳结构外压屈曲问题的柱壳有限条元法[J]. 水力发电, 2006, 32(10): 47-49 |
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| 作者姓名： | 张多新 王卫平 施兴会 刘东常 |
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| 作者单位： | 华北水利水电学院,河南,郑州,450011;义乌市安迪水利水电勘测设计有限公司,浙江,义乌,322000 |
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| 基金项目： | 国家自然科学基金;水利部科技创新资金 |
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| 摘 要： | 半解析柱壳有限条元法由于采用了解析函数与离散多项式函数相结合的位移模式,不但减少了自由度,提高了计算精度,还能方便地处理各种复杂的结构及其不同的连接方式。考虑加劲环被嵌固的影响,采用该方法对加劲柱壳结构外压作用下的失稳屈曲问题进行了分析研究,并通过算例得出加劲柱壳结构外压失稳的欧拉曲线,验证了半解析柱壳有限条元法的正确性与合理性。
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| 关 键 词： | 加劲柱壳结构 稳定性 柱壳有限条元法 屈曲波型 |
| 文章编号： | 0559-9342（2006）10-0047-03 |
| 收稿时间： | 2006-01-20 |
| 修稿时间： | 2006-01-20 |
The Cylinder Shell Finite Strip Element Method Applied to Stiffening Cylinder Shell Structure's Buckling under External Pressure |
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| Zhang Duoxin,Wang Weiping,Shi Xinghui,Liu Dongchang. The Cylinder Shell Finite Strip Element Method Applied to Stiffening Cylinder Shell Structure's Buckling under External Pressure[J]. Water Power, 2006, 32(10): 47-49 |
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| Authors: | Zhang Duoxin Wang Weiping Shi Xinghui Liu Dongchang |
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| Affiliation: | 1.North China Institute of Water Conservancy and Hydroelectric Power, Zhengzhou Henan 450011; 2.An-Di Hydraulic Investigation and design Research, Yiwu. Zhejiang 322000 |
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| Abstract: | Owing to the adoption of the displacement mode formed with the combination of the analytic function and the discrete multivariate function,using semi-analytical CSFSE method can not only decrease the freedom degree,but also increase the accuracy of calculation.In addition,it is convenient to deal with all kinds of complicated structures and their different connecting ways with this method,which is quite suitable for stiffening cylinder-shell structures and curved plate structures.The Euler curve of stiffening cylinder-shell structure's off-stability due to external pressure is obtained through calculation instance,and the correctness and rationality of the method are proved. |
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| Keywords: | stiffening cylinder shell structure stability cylinder shell finite strip element method buckling wave shape |
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