125MW汽轮机低压内缸应力场的三维壳体有限元计算  

Stress Field Calculation by 3-D Shell Finite Element Method of 125MW Steam Turbine's Low Pressure Inner Casing

作　　者：毕仲波[1] 丁兆海[1] 丁俊齐[1] 王璋奇[2] 周兰欣[2] 

机构地区：[1]山东电力研究院,济南250002 [2]华北电力大学,保定071003

出　　处：《动力工程》2001年第3期1203-1207,1258,共6页Power Engineering

摘　　要：采用三维壳体有限元计算方法对 1 2 5MW汽轮机低压内缸三维温度场、应力场进行了计算分析。对薄体结构的低压内缸进行了有限元分析建模、网格划分 ;在应力分析过程中采用与温度场相同的有限元网格 ,减少了工作量 ,提高了温度场和热应力场的计算精度和计算速度。图 7表 2参This paper calculates and analyzes the temperature field and stress field by 3 D shell finite element method of 125MW steam turbine's low pressure inner casing. Contributing mold of finite shell structure low pressure inner casing's element analysis; Calculating and analyzing the temperature field and stress field use the same element net; Reducing labor intensity, raising the precision and increasing speed of calculating the temperature field and stress field. Figs 7, tables 2 and refs 6.

关 键 词：汽轮机 低压内缸 三维壳体 有限元法 温度场 应力场 

分 类 号：TK262[动力工程及工程热物理—动力机械及工程]