压力容器2016，Vol.33Issue(3)：32-38,7.DOI:10.3969/j.issn.1001-4837.2016.03.005
薄壁球形容器爆破压力计算公式精度研究
Calculation Precision of Burst Pressure Formulas for Thin-walled Spherical Vessels
摘要
Abstract
The evaluation indexes of burst pressure calculation precision for steel thin-walled spherical vessels were established.Four formulas including mid-diameter formula,Faupel formula and other two for-mulas proposed in the literature were focused.Values of evaluation indexes calculated according to these four formulas were compared,based on 55 groups of tested burst pressure values of spherical vessels.Re-sults indicate that:For multi-layer spherical vessels,the average value of accuracy (ratio of calculated val-ue to measured one)and the coefficient of variation both calculated according to the mid-diameter formula are 0.9770 and 0.0354 respectively,with the yield ratio of vessel materials ranging from 0.7209 to 0.8475,and the diameter ratio ranging from 1.053 to 1.107.For single-layer spherical vessels,the aver-age value of accuracy and the coefficient of variation both calculated according to the mid-diameter formu-la are 1.1853 and 0.0998 respectively,with the yield ratio of vessel materials ranging from 0.3362 to 0.5208,and the diameter ratio ranging from 1.109 to 1.257.Mid-diameter formula was found to be the one with highest accuracy,best stability and widest applicability among all these four formulas.关键词
球形容器/爆破压力/计算公式/精度Key words
spherical vessel/burst pressure/calculation formulas/precision分类
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刘小宁,刘岑,张红卫,刘兵,袁小会,杨帆..薄壁球形容器爆破压力计算公式精度研究[J].压力容器,2016,33(3):32-38,7.基金项目
湖北省教育厅科研项目 （）
