椭圆形封头凸缘法兰的应力分析及试验研究

Stress Analysis and Test Research of Lug Flanges in Ellipsoidal Heads

本文在建立椭圆形封头凸缘法兰的力学模型的基础上,考虑到边缘效应,采用弹性分析方法,得到凸缘法兰的应力表达式和强度设计公式。通过对一台9.5t液化石油气槽车的应力测试,理论值和实测值相吻合,证明了本文提出的力学模型和推导方法是正确的,强度设计公式可供工程设计参考。

Based on setting up mechanics model of lug flanges in ellipsoidal pressure vessel heads, and considering the effect of fringe due to different deformation, this paper makes stress analytic outcomes of lug flanges, and put forth strength design calculating formula of lug flanges. The outcomes coincide with test result and theory rather well,it proves that the theory put forth in this paper is right and can be used in engineering design.