汽轮机阶梯式变厚度轮盘的蠕变应力分析  

Analysis of Creep Stresses in Rotating Disks with Stepped Thickness for Steam Turbine

作　　者：王燮山[1] 

机构地区：[1]华北电力大学(北京)动能工程系

出　　处：《现代电力》1998年第2期26-30,共5页Modern Electric Power

摘　　要：应用广义函数及蠕变理论，建立了汽轮机阶梯式变厚度轮盘在蠕变状态下的平衡方程、几何方程及本构方程。考虑问题的非线性，采用数值计算法进行求解，并分析了２００ＭＷ；气轮机组中的一个阶梯式旋转轮盘的蠕变应力。By using the generalized functions and creep theory , the equations of equilibrium , geometry and constitution for stepped rotating disks of steam turbine are established under the creep condition. Considering nonliner characteristics of the probem , a numerical calculating method is used to solve these equations. The creep stresses in a stepped rotating disk of 200MW units are also analysed in this paper.

关 键 词：汽轮机 轮盘 蠕变 应力分析 数值计算 

分 类 号：TK263.61[动力工程及工程热物理—动力机械及工程] TK262