| 纵向受压加筋板架有侧向压力时加强筋的扭转屈曲 |
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| 引用本文： | 胡毓仁,陈伯真,孙久龙.纵向受压加筋板架有侧向压力时加强筋的扭转屈曲[J].上海交通大学学报,2000,34(12):1717-1722. |
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| 作者姓名： | 胡毓仁 陈伯真 孙久龙 |
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| 作者单位： | 1. 上海交通大学船舶与海洋工程学院,上海200030
2. 中国船级社上海规范研究所,上海200135 |
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| 摘 要： | 在Vlasov导出的一般薄壁杆件扭转屈曲微分方程式的基础上,利用迦辽金法导出计算扭转屈曲临界应力的广义特征值问题.研究了侧向应力为定值、轴向压力为活载荷的情况,探讨了侧向压力对轴向临界应力的影响.考虑了板对加强筋的弹性转动约束,对板内压应力的影响以及板受压屈曲后屈曲模式的影响亦进行了讨论.
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| 关 键 词： | 船体结构 工程结构 加筋板架 侧倾 扭转屈曲 |
| 文章编号： | 1006-2467(2000)12-1717-06 |
| 修稿时间： | 1999年10月8日 |
Tripping of Thin-Walled Stiffeners in the Axially Compressed Stiffened Panel with Lateral Pressure |
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| HU Yu ren ,CHEN Bo zhen ,SUN Jiu long.Tripping of Thin-Walled Stiffeners in the Axially Compressed Stiffened Panel with Lateral Pressure[J].Journal of Shanghai Jiaotong University,2000,34(12):1717-1722. |
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| Authors: | HU Yu ren CHEN Bo zhen SUN Jiu long |
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| Institution: | HU Yu ren 1,CHEN Bo zhen 1,SUN Jiu long 2 |
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| Abstract: | On the basis of the Vlasov's differential equation for torsional buckling of thin walled bars, a generalized eigenvalue problem for tripping of stiffeners was derived by using the Galerkin's method. The effect of the lateral pressure (dead load) to the critical axial stress (live load) upon tripping was investigated by solving the eigenvalue problem. The rotational restraint provided by the plate was taken into account. The effects of the compressive stress in the plate and the plate buckling mode were also discussed. |
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| Keywords: | hull structure engineering structures stiffened plate panel tripping torsional buckling |
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