压力容器2017，Vol.34Issue(8)：12-18,6,8.DOI:10.3969/j.issn.1001-4837.2017.08.003
内压作用下蒸汽发生器扇环形组合管板应力分析
Stress Analysis of Combined Tube Sheet Composed of Group of Annular Sector Plate Tube Sheets Used in Steam Generator
摘要
Abstract
A kind of combined tube-sheet designed for the steam generator in nuclear power industry was introduced,and the stress analysis was also conducted.The combined tube-sheet was composed of a group of annular-sector plate tube-sheet units.Finite element analysis was adopted to study the stress distribution of an annular sector tube sheet unit.The stress distribution conditions of the unperforated annular sector plate under the condition of simply supporting and fixed supporting were also analyzed and were compared to the stress distribution of the annular sector tube sheet.The results show that the stress distribution of the annular sector tube sheet isclose to that of a rectangular plate under normally loaded by uniform pressure,as that the maximum stress appears at the center of the annular sector tube sheet,together with the edge stress existing at the edges of the annular sector tube sheet.On the area far away from the perforating positions,the stress distributions of the annular sector tube sheet are close to that of the unperforated annular sector plate under the condition of simply supported or fixed supported,but at the place near to the perforating,the stresses are obviously deviated from it.There is a great difference of the stress concentration caused by perforating between the annular sector tube sheet and the rectangular plate,so the key subject to study the stress distribution of the annular sector tube sheet is to analyze the stress concentration around the perforating.关键词
蒸汽发生器/组合管板/应力分析/开孔/应力集中Key words
steam generator/combined tube-sheet/stress analysis/perforation/stress concentration分类
机械制造引用本文复制引用
刘庆刚,张朝,于新奇..内压作用下蒸汽发生器扇环形组合管板应力分析[J].压力容器,2017,34(8):12-18,6,8.基金项目
河北省高等学校自然科学基金重点项目(ZD2017028) （ZD2017028）
