本文设计了舷侧不连续的双层板架结构模型，开展了该结构轴向受压稳定性试验，并采用非线性有限元软件Abaqus对其屈曲失效过程进行了数值仿真计算，分析了结构屈曲失效的诱因及过程。在此基础上，为提高该结构轴向受压稳定性，本文设计了4组改进设计方案，并使用经试验验证的有限元建模计算方法对这4种方案进行分析，选出最佳方案。本文的改进设计方法为此类结构的稳定性设计提供了参考依据。
This paper designed a continuous double side plate frame structure model, carried out the structure of axial compression stability test, and the nonlinear finite element software Abaqus, the numerical simulation on the buckling failure process, analyzed the causes and process of buckling failure. On this basis, in order to improve the stability of the structure under axial compression, this paper designed 4 sets of improved design, calculation method and finite element modeling by experiments to analyze these four schemes, and select the best scheme. The improved design method provides a reference for the stability design of this kind of structure.
2018,40(10): 40-45 收稿日期：2017-11-02
DOI：10.3404/j.issn.1672-7649.2018.10.008
分类号：U663
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
参考文献：
[1] 卢润泽. 舰船总纵弯曲极限承载能力分析[D]. 哈尔滨:哈尔滨工程大学, 2012.
[2] YAO T, FUJIKUBO M, YANAGIHARA D, et al. Buckling collapse strength of chip carrier under longitudinal bending (1st Report)[J]. Journal of the Society of Naval Architects of Japan, 2002(191):255-64.
[3] DOW R. Testing and analysis of a 1/3-scale welded steel frigate model[J]. 1991,
[4] 刘俊松. 某底架静动态特性及结构优化研究[D]. 武汉:武汉理工大学, 2015.
[5] 刘相春, 李陈峰, 任慧龙, 等. 大跨度板架屈曲分析的非线性有限元法[J]. 舰船科学技术, 2013, 35(1):46-50. LIU Xiang-chun, LI Chen-feng, REN Hui-long, et al. The NFEM for buckling analysis of large-span grillage[J]. Ship Science and Technology, 2013, 35(1):46-50.
[6] 郭延松, 单中阳. 板架结构复杂屈曲问题[J]. 计算机辅助工程, 2013(Z1):387-390. GUO Yan-song, SHAN Zhong-yang. Complex buckling problems on grillage structure[J]. Computer Aided Engineering, 2013(Z1):387-390.
