摘要
为了及时、准确地对压力容器进行可靠性评估,将ANSYS和蒙特卡罗相结合方法引入压力容器模型的计算中。以概率论为基础,用此方法对建立的模型进行500次随机抽样分析,求出在一定置信度下的可靠度曲线;并对输出随机变量的灵敏度和抽样过程进行了分析,求得对结果影响最大的因素是屈服强度。结果表明,该模型可以有效地反映压力容器的实际情况,为其结构可靠性分析提供参考。
In order to assess the reliability of pressure vessel timely and accurately, the method which combined ANSYS with Monte Carlo was introduced into calculation of pressure vessel model. Based on probability theory, 500 random sampling analyses of the established model were done, the reliability curve under certain confidence level was obtained. The sensitivity of the output random variable and sampling process were analyzed, obtaining that the most influencing factor of the results was yield strength. The results showed that the model could effectively reflect the actual situation of pressure vessel, which could provide reference for structural reliability analysis.
出处
《化工装备技术》
CAS
2012年第2期27-30,共4页
Chemical Equipment Technology
