汽轮机缸体三维有限元建模方法研究  

The Method for Constructing a Model of Turbine Casing in 3D - FEM

作　　者：王孟[1] 王璋奇[1] 梁立德[1] 

机构地区：[1]华北电力大学机械工程系,保定071003

出　　处：《汽轮机技术》2000年第2期92-95,共4页Turbine Technology

摘　　要：研究汽轮机缸体建模的一般方法，基于ＡｕｔｏＣＡＤ和有限元建模工具ＶｉｚｉＣａｄ，提出了汽轮机缸体建模的一种新思路。根据缸体结构的特点，将缸体分成若干子模块，实施有限元网格自动剖分，得到子模块的有限元模型，再进行子模块粘接，建立整个缸体结构的有限元模型。应用此方法，得到了国产１２５ＭＷ汽轮机低压内缸三维有限元整体模型。This paper deals with the general method to construct a model of the turbine casing in 3 dimension FEM. On the base of AutoCAD and ViziCad tools, we suggested a new idea to construct tile meshes of the turbine casing. The while casing is divided into a series of sub - model, and the mesh of this sub - model is obtained by automatic mesh generation. The meshes of the while casing are obtained by the adding of the sub model one by one. As an example, the meshes of a turbine casing are shown in the paper.

关 键 词：汽缸 三维有限元 建模 汽轮机 

分 类 号：TK262[动力工程及工程热物理—动力机械及工程]