| 带缺口加强圈的圆柱壳屈曲特性分析 |
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| 引用本文： | 丁昌,汪荣顺.带缺口加强圈的圆柱壳屈曲特性分析[J].低温与超导,2009,37(2). |
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| 作者姓名： | 丁昌 汪荣顺 |
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| 作者单位： | 上海交通大学制冷与低温工程研究所,上海,200240 |
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| 摘 要： | 以低温液体罐车外筒体为原型,采用有限元方法研究了带缺口加强圈的圆柱壳的屈曲特性。着重考察了加强圈缺口间的夹角、加强圈之间的间距、边界条件对此类结构屈曲载荷的影响。计算结果表明:圆柱壳的屈曲载荷与加强圈缺口间夹角不是简单的线性关系,当加强圈缺口间夹角增大到一定程度后,圆柱壳的屈曲载荷几乎不再变化;加强圈布置的均匀度不但会影响到圆柱壳的屈曲载荷,同时也对其屈曲模态产生影响;在不同的边界条件下,圆柱壳也表现出不同的屈曲特性。
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| 关 键 词： | 圆柱壳 屈曲 加强圈 缺口 |
Buckling characteristics analysis of cylindrical shells with stiffeners having gaps |
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| Ding Chang,Wang Rongshun.Buckling characteristics analysis of cylindrical shells with stiffeners having gaps[J].Cryogenics and Superconductivity,2009,37(2). |
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| Authors: | Ding Chang Wang Rongshun |
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| Institution: | Ding Chang,Wang Rongshun(Institute of Refrigeration and Cryogenic Eng.,Shanghai Jiaotong Univ.,Shanghai 200240,China) |
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| Abstract: | Based on the original model of the outer shell of cryogenic liquid tank lorries,a finite element method was adopted to study the buckling characteristics of cylindrical shells with stiffeners having gaps.The influence of the angle between the gaps of stiffeners,the distance between stiffeners and boundary conditions on the buckling load of cylindrical shells was researched in detail.The results show that the relation of the buckling load of cylindrical shells vs.the angle between the gaps of stiffeners is n... |
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| Keywords: | Cylindrical shell Buckling Stiffener Gap |
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