| 王睿璇,黄进浩.环肋圆柱壳结构参数与失稳模式关系研究[J].装备环境工程,2025,22(2):77-86. WANG Ruixuan,HUANG Jinhao.Relationship Between Structural Parameters and Instability Mode of Ring-stiffened Cylindrical Shell[J].Equipment Environmental Engineering,2025,22(2):77-86. |
| 环肋圆柱壳结构参数与失稳模式关系研究 |
| Relationship Between Structural Parameters and Instability Mode of Ring-stiffened Cylindrical Shell |
| 投稿时间：2024-11-13 修订日期：2024-12-18 |
| DOI：10.7643/issn.1672-9242.2025.02.009 |
| 中文关键词: 环肋圆柱壳 耐压结构 结构设计 耐压结构 结构稳定性 结构特征中图分类号:U663.1 文献标志码:A 文章编号:1672-9242(2025)02-0077-10 |
| 英文关键词:ring-stiffened cylindrical shell pressure structure structural design pressure structure structural stability structural characteristic |
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| 中文摘要: |
| 目的 探究环肋圆柱壳结构参数与失稳模式之间的关系，揭示圆柱壳各结构参数与失稳临界压力及失稳模式间的内在联系。方法 以经典的环肋圆柱壳结构为研究对象，通过理论简化式和有限元弧长法，选取某实验的环肋圆柱壳为母版，选取单一结构参数为变量，进行有限元的屈曲分析。开展不同壳板厚度、肋骨腹板高度、肋骨间距以及舱段总体长度等参数对圆柱壳失稳模式影响的研究。结果 对比了理论方法和有限元方法的结果，获得了不同结构参数对圆柱壳结构失稳的影响规律。结论 圆柱壳的失稳临界压力随壳板厚度的增大、腹板高度的增大、肋骨间距的减小而增大，与舱段总长的关系不明显，但在失稳模式发生变化的临界阶段会有反常。 |
| 英文摘要: |
| The work aims to explore the relationship between the structural parameters and instability mode of the ring-stiffened cylindrical shell and reveal the inherent connection among the various structural parameters of the cylindrical shell, the critical instability pressure and the instability modes. The classic ring-stiffened cylindrical shell structure was taken as the research object and a certain experimental ring-stiffened cylindrical shell was selected as the master version. A single structural parameter was chosen as the variable, and the finite element buckling analysis was carried out through theoretical simplified formulas and the arc-length method of the finite element. The effects of various parameters, including the shell plate thickness, rib web height, rib spacing, and cylindrical shell length, on the instability mode of the cylindrical shell were examined. The results of the theoretical method and the finite element method were compared, and the effect laws of different structural parameters on the instability of the ring-stiffened cylindrical shell structure were obtained. The critical instability pressure of cylindrical shell rises as the shell plate thickness increases, the web height grows, and the rib spacing decreases. The relationship with the length of cylindrical shell is not obvious, but there is an abnormal phenomenon at the critical stage where the instability mode changes. |
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