| 对称双圆弧柱壳的非线性屈曲 |
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| 引用本文： | 杨丽红,何蕴增,何超.对称双圆弧柱壳的非线性屈曲[J].低温建筑技术,2010,32(4):44-46. |
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| 作者姓名： | 杨丽红 何蕴增 何超 |
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| 作者单位： | 哈尔滨工程大学航天与建筑工程学院,哈尔滨,150001 |
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| 摘 要： | 对于潜艇艇体耐压壳结构,屈曲特性在设计中被广泛关注。针对一种新型潜艇耐压艇体结构-对称双圆弧环肋柱壳,推导了相应的弹塑性失稳系数。采用非线性大挠度理论,给出了静水压力作用下含初始缺陷的对称双圆弧环肋柱壳大挠度弹塑性屈曲临界压力计算式。讨论了开口角、周向相当波数和初始几何缺陷对临界压力的影响。计算结果表明,开口角对结构弹塑性屈曲的临界压力影响很小,而周向相当波数是影响临界压力的主要因素。
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| 关 键 词： | 双圆弧柱壳 大挠度屈曲 临界压力 |
NONLINEAR BUCKLING OF THE SYMMETRICAL DOUBLE ARC CYLINDRICAL SHELL |
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| YANG Li-hong,HE Yun-zeng,HE Chao.NONLINEAR BUCKLING OF THE SYMMETRICAL DOUBLE ARC CYLINDRICAL SHELL[J].Low Temperature Architecture Technology,2010,32(4):44-46. |
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| Authors: | YANG Li-hong HE Yun-zeng HE Chao |
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| Affiliation: | YANG Li-hong,HE Yun-zeng,HE Chao(College of Aerospace and Civil Engineering,Harbin Engineering University,Harbin 150001,China) |
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| Abstract: | The buckling of submarine pressure-resisted shell structure was paid wide attention in engineering.The expression of the critical pressure for large deflection buckling of double arc ring-stiffened cylindrical shell-a new type submarine pressure-resisted shell structure with initial geometric imperfections was determined under hydrostatic pressure by using nonlinear large deformation theory.The effects of central angle of circular arc,circumferential equivalent wave number and initial geometric imperfection... |
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| Keywords: | double arc cylindrical shell large deflection buckling critical pressure initial geometric imperfections equivalent wave number |
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