前言在汽轮机的零部件中,大部分都具有复杂的几何形状以及随着温度而变化的边界条件,例如:汽缸、主汽部门等,这些零部件的强度计算和寿命分析都不可能用二维有限元素处理,因此要采用三维有限元。但是在微机68000上三维有限元的实施最为突出的矛盾是机器容量问题,虽然以前曾经用分块解线代数方程组的办法,但对于象汽轮机这 Preface Most of the steam turbine components have complicated geometries and boundary conditions that vary with temperature, such as cylinders, main steam sector, etc. The strength calculation and life analysis of these components can not be implemented in two dimensions Finite element processing, so to use three-dimensional finite element. However, the most prominent contradiction in the implementation of the three-dimensional finite element on microcomputer 68000 is the machine capacity problem. Although the algebraic equations have been solved in blocks in the past,