压力容器2016，Vol.33Issue(2)：35-41,7.DOI:10.3969/j.issn.1001-4837.2016.02.006
带小加强圈外压圆筒设计方法的比较与讨论
Comparison and Discussion of Design Methods of Small-ring Stiffened Cylindrical Shells under External Pressure in Pressure Vessel Design Standards
劳利建 1陈冰冰 2魏协宇 1高增梁2
作者信息
- 1. 浙江工业大学化工机械设计研究所,浙江杭州 310032
- 2. 过程装备及其再制造教育部工程研究中心,浙江杭州 310032
- 折叠
摘要
Abstract
Comparison and discussion of the design methods of small-ring stiffened cylindrical shells under external pressure in ASME Ⅷ-2 ,API Bulletin 2 U and EN 13445-3 standards to strengthen the similar-ities and differences.Experimental data of external pressurized small-ring stiffened cylindrical shells whose failure modes are general instability in references are adopted to estimate the codes.Their sizes are cited as examples in calculation to get the ratio of experimental critical pressures to allowable external pressure obtained by each code( called safety margin ratio) .The result shows that:most of the safety margin ratios obtained by the three codes are less than 3.0.The average value of the safety margin ratios which are ob-tained according to ASME Ⅷ-2 is 2.77 and it′s standard deviation is 1.44;the average value of the safety margin ratios obtained according to API Bulletin 2U is 2.84 and it′s standard deviation is 0.35;the average value of the safety margin ratios obtained according to EN 13445-3 is 2.21 and it′s standard de-viation is 0.42.关键词
压力容器/外压/小加强圈/安全裕度Key words
pressure vessel/external pressure/small ring stiffener/safety margin分类
机械制造引用本文复制引用
劳利建,陈冰冰,魏协宇,高增梁..带小加强圈外压圆筒设计方法的比较与讨论[J].压力容器,2016,33(2):35-41,7.
