中国石油大学学报（自然科学版）2012，Vol.36Issue(1)：150-153,4.DOI:10.3969/j.issn.1673-5005.2012.01.026
拱顶罐罐顶腐蚀数据的统计分析
Statistical analysis of corrosion data of vaulted tank roof
摘要
Abstract
The health status of the tank roof was evaluated to strengthen the management of storage tanks, to grasp the corrosion condition of the tank roof accurately. Generalized extreme value ( GEV) distribution was adopted as statistical model for corrosion depth of the tank roof and the model for practical problems was built by statistic of the maximum. L-moments method was used for estimating the parameters of the model and the statistical law of the corrosion was analyzed. The results show that according to the calculation and analysis of the corrosion data of the five vaulted tank roofs from Shengli Oilfield, the maximum depth accords with the GEV distribution III (Weibull distribution). The corrosion depth of tank roof fits the GEV distribution III very well by Kolmogorov inspection.关键词
拱顶罐/腐蚀/数据统计/广义极值分布/L-矩法Key words
vaulted tank/ corrosion/ data statistics/ generalized extreme value (GEV) distribution/ L-moments分类
能源科技引用本文复制引用
刘雪云,王琳,钟诗胜,焦映厚..拱顶罐罐顶腐蚀数据的统计分析[J].中国石油大学学报（自然科学版）,2012,36(1):150-153,4.基金项目
国家高技术研究发展计划重点资助项目(2009AA043404) （2009AA043404）
