压力容器圆筒大开孔补强计算方法  

Reinforcement Method of Large Openings in Cylindrical Shells

作　　者：陆明万[1] 桑如苞[2] 丁利伟[2] 王小敏[2] 林上富[2] 

机构地区：[1]清华大学航天航空学院,北京100084 [2]中国石化工程建设公司,北京100101

出　　处：《压力容器》2009年第3期10-15,共6页Pressure Vessel Technology

摘　　要：对美国ASME大开孔补强计算方法进行了分析,用有限元法对圆筒大开孔计算截面的应力进行了考证,发现除了ASME给出的、绕圆筒母线的弯矩外还存在一个数值相当的、绕接管母线的弯矩,补充建立了补强环在环平面内弯曲的计算模型,提出一种新的圆柱壳开孔补强的工程计算方法。A discussion on ASME reinforcement method of large openings in cylindrical shells is given. By review the stresses distribution of FEM analysis results of the large openings in cylindrical shells, we found that except for a bending moment about the vessel shell longitudinal axis there is another bending moment about the nozzle longitudinal axis, which has the same magnitude order with the ASME given bending moment. An in - plane bending model of the reinforcement ring is established. A new engineering method of reinforcement calculation of openings in cylindrical shells is proposed.

关 键 词：圆筒 大开孔 补强 

分 类 号：TQ050.2[化学工程]