含体积型缺陷管道的缺陷尺寸确定及子截面划分软件实现算法

Software Algorithms for the Determination of Metal Loss Dimensions and Subsections Generation in the Pipeline Assessment with Volumetric Type Flaw

根据标准开发管道评价软件的主要难点在于为标准中无法直接用软件实现的依赖人工干预或者经验的关键步骤构建软件实现算法。在基于SY/T 6477-2000/API 579的管道评价软件的开发过程中,针对管道缺陷尺寸确定因依赖图形而无法直接软件实现的问题,采用线性插值法构建了危险厚度截面(CTP)图,并在此基础上建立了管道缺陷尺寸确定的软件实现算法;针对子截面划分因依赖经验而无法直接软件实现的问题,以剩余强度因子(RSF)的变化率作为终止判据构建了循环迭代,进而利用该循环迭代建立了子截面自动划分算法并证明了其有效性。构建的算法均给出了程序流程图,可直接用于软件实现。

Designing software algorithms for critical steps,which can not be implemented by software according to standards directly,is an important and difficult task because those steps need the intervention and experience of engineers.Software algorithms for two critical steps in SY/T 6477-2000/API 579,the metal loss dimension determination and the subsections generation,were proposed.The metal loss dimension determination can not be implemented directly because of its dependence on graph.To solve this problem,Crit...