异径三通有限元强度分析

Analysis of finite-element strength of reducer tee

三通作为高压管汇中的关键部件,在实际使用中经常出现刺裂现象。为了验证三通设计的合理性及安全性,对90°铸钢异径三通在额定工作压力和静液压试验压力工况下,进行了有限元分析计算。按照ASME规范应力分析法分析了其应力类别及应力组合,证明有高应力区存在。改进模型结构后重新进行了有限元分析计算,并采用ASME规范分别就额定工作压力和静液压试验压力条件下的强度进行了校验,分析结果完全满足规范要求。

The tee,a key part of high pressure pipe manifold,often encounters cracking in actual application.To examine the rationality and safety of designing the tee,the finite-element analysis and calculation of 90° cast steel reducer tee are carried out under the conditions of rated working pressure and static hydraulic test pressure.In accordance with the ASME standard stress analysis method,the stress category and combination are analyzed,proving the existence of high stress region.The finite-element analysis an...