圆柱壳的变形特性计算一直受到广泛的重视,解决这一问题的经典板壳理论解法主要有解析法、数值法和半解析法。由于环肋圆柱壳结构的复杂性,采用纯解析的方法求解非常困难。随着计算机技术的发展,有限元法在船体结构分析中已占主导地位,并已成为数值解法的典型代表。本文通过对底部简支和悬臂薄壁圆柱壳的受力状态进行分析,建立有限元模型进行仿真计算并与理论计算结果加以比对,分析不同计算方法对圆柱壳变形结果的影响。
Calculation on the deformation of cylindrical shell is a key problem, analytical method, numerical method and semi-analytic method become effective method to solve these problems. Because of the complexity of ring-stiffened cylindrical shell, it is difficult to use analytical method, FEM becomes the representation of numerical method by the developing of computer technology. The stress condition of typical cylindrical shell was anslysed in this paper, and the FEM model was established. According to the contrast of analytical method and numerical method, The influence of different methods to the cylindrical shell deformation was analysed.
2016,38(3): 1-4 收稿日期：2015-09-06
DOI：10.3404/j.issn.1672-7619.2016.03.001
分类号：U661.44
基金项目：国家自然科学基金资助项目(51409139)
作者简介：周海波(1987-),男,工程师,研究方向为船舶总体设计。
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