基于参数化表达的船舶结构有限元分析方法

针对船舶的结构特点,文章提出了一种船舶结构参数化有限元分析方法,解决了常规方法中建模效率低以及建立的模型难以修改等问题.该方法运用面向对象的编程技术封装了建模过程中诸如网格划分、构件连接处理等复杂的操作,从而提高了建模的效率.采用参数化的方法建模,在设计的整个周期内都可以通过参数对整个船体结构模型进行修改.建立参数化结构模型与专业有限元软件的接口,通过有限元软件完成结构有限元分析.通过对一条散货船的有限元分析,证明了该方法相对于传统方法的优越性及其工程实用性.

Hull structure parametric FEM analysis

A method for hull structure parametric FEM analysis is presented.As the characteristics of ship structure are fully taken into account,the disadvantages in the traditional way,such as low efficiency and difficult to modify the model,have been overcame successfully.Object Oriented Programming(OOP) is used to define the ship structural model,and the complicated options when modeling,such as meshing and connections of ship members are packaged in the classes of structural members.As a result,the efficiency of modeling is improved greatly.With parametric method,the structural model could be modified easily at any time in the modeling process.This method proved more practical and convenient over conventional ones by doing the FEM structural analysis of a bulk carrier.