为研究具有大开口甲板板架结构的稳定性问题，本文设计了含大开口结构的甲板板架模型，开展了其轴向受压稳定性实验，并采用非线性有限元软件Abaqus对该模型的屈曲破坏过程进行数值仿真计算，试验结果与数值仿真结果吻合较好。在此基础上，根据甲板结构屈曲失效的诱因，设计5种改进设计方案，并使用经试验验证的有限元仿真计算方法对各种改进方案进行分析，选出最佳方案。本文工作为船舶甲板结构稳定性设计提供了一定的参考依据。
In order to analyze the stability of deck grillage with open hatch, experimental and numerical analysis of a double-layer deck grillage with open hatch is carried out. And nonlinear finite element software Abaqus are used to simulate the bucking process of the model. The results of experiment and numerical calculation agree well with each other. Based on the experiment, five kinds of improvement are designed according to the inducement of bucking failure of deck structure. Calculation method and finite element modeling by experiments are used to analyze each schemes, and the best scheme is found out. This paper's work provides a certain reference for the design's of the stability of deck grillage.
2018,40(8): 8-13 收稿日期：2017-11-02
DOI：10.3404/j.issn.1672-7649.2018.08.002
分类号：U663.6
作者简介：邓贤辉(1978-),男,高级工程师,研究方向为船舶与海洋工程
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