混流式水轮机转轮裂纹扩展探讨  

Research on The Crack Propagation for The Runner in Francis Turbine

作　　者：孙春方[1] 

机构地区：[1]同济大学工程力学与技术系,上海200092

出　　处：《动力工程》2002年第3期1827-1831,共5页Power Engineering

摘　　要：对转轮常用材料 ZG2 0 Si Mn进行了 JICda/ d N及Δkth测定 ,初步建立了转轮裂纹扩展模型 ,并对已运行转轮进行了计算 ,结果与实际相符。图 5表 7参The J IC , d a /d N and Δ kth data of ZG20SiMn in the common use of the runner are measured in this paper, together with the elementary crack propagation rate mode. The runner in operation is analyzed, and the computed result corresponds with what is actually happening. Figs 5, tables 7 and refs 3.

关 键 词：混流式水轮机 转轮 裂纹扩展 ZG20SIMN 

分 类 号：TK730.323[交通运输工程—轮机工程]