下拆式水轮机底环刚强度及动态特性分析

当水轮机转轮采用下拆式的检修方式时,由于没有混凝土的支撑作用,底环结构的刚强度和动态特性对于设计来说就显得尤为重要。针对此结构底环的受力特点,应用有限元法对底环、下环密封环和锥管的组合结构进行了联合受力刚强度分析,并通过对称循环理论得出了整体结构的动态特性。

Analysis on Rigid Intensity and Dynamic Characteristics of Bottom Ring in Down-Disassembly Water Turbine

When the wheel of water turbine is overhauled by down disassembly method,because of lacking the support of concrete,the design for rigid intensity and dynamic characteristics of the bottom ring seems to be very important.According to the force characteristics of the bottom ring,the united force rigid intensity analysis of composition structure to the bottom ring,bottom ring seal ring and taper pipe is carried out by finite element method,and the dynamic characteristic of entire structure is obtained through...