压力容器2017，Vol.34Issue(7)：29-34,44,7.DOI:10.3969/j.issn.1001-4837.2017.07.005
压力容器球冠形端封头的应力分析与设计方法
A Design Method Based on Analysis of Cylindrical Pressure Vessels with Fixed Spherical Crown Head
王震宇 1吴坚 1薛明德 1李世玉2
作者信息
- 1. 清华大学工程力学系,北京100084
- 2. 中国石化工程建设公司,北京100101
- 折叠
摘要
Abstract
Standards GB 150.3-2011 and JB 4732-1995 provided the criterion for the design of the cylindrical pressure vessel with fixed spherical crown head,which are available for the ratio of the internal pressure p to the allowable stress Sm,p/Sm ≥0.002.In most cases,the pressure applied on the pressure vessel of this structures is low,so engineers desired the design curves for p/Sm ＜ 0.002.This paper will describe the theoretical basis of the standard design method.Based on the theory of elastic thin shell,it will present the stress analysis formula of cylindrical pressure vessel with the same thickness of the fixed spherical crown.The results are also verified by the finite element method.The suitable range of the design curves for parameter p/Sm,is extended from 0.002 to 0.001.The safety for thinner shell structures are verified by buckling analysis of the elastic-plastic finite element method.关键词
球冠形端封头/应力分析设计/圆柱壳压力容器/内压屈曲分析Key words
spherical crown head/stress analysis design/cylindrical pressure vessel/buckling analysis due to internal pressure分类
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王震宇,吴坚,薛明德,李世玉..压力容器球冠形端封头的应力分析与设计方法[J].压力容器,2017,34(7):29-34,44,7.
