船舶有限元模型舱室识别方法

Research on method of ship compartment recognition with FE model

在船舶与海洋结构物设计过程中,一般利用有限元法校核船体结构强度,其中对舱室进行定义的步骤费时费力,还易出错。针对此问题进行研究,提出一种高效的有限元模型舱室边界自动识别算法,称为“无自由边法”。基于FEMAP软件编程实现该算法,并以实船模型为例进行测试。研究表明:该算法高效实用,适用于任意形状复杂的舱室,所开发的程序能够快速、准确地识别出舱室边界的网格单元。

FEA method is often used for hull structure strength calculation in the ship and marine structure design.It’s not only time-consuming for the definition of the ship compartment,but also easy to make mistakes.An algorithm helpful to recognize the boundary of the ship compartment efficiently called No Free Edge was proposed to solve this problem.A program was developed based on FEMAP software,and a practical engineer project was adopted as test example.It can be found that this algorithm was efficient and also suitable for compartments with very complex shapes.The developed program can recognize the boundary elements of the compartment quickly and accurately.