【作者】 张伟； 崔维成； 李跃辉； 李刚；

【Author】 ZHANG Wei~1, CUI Wei-cheng~2, LI Yue-hui~1, LI Gang~1 (1. School of Architectural Engineering of Henan University of Science & Technology, Luoyang 471003, China; 2. China Ship Science and Research Center, Wuxi 214082, China)

【机构】 河南科技大学建筑工程学院； 中国船舶科学研究中心；

【摘要】 本文在研究了传统灵敏度因子的基础上,提出了新的灵敏度因子计算新方法,统一了随机变量与确定性变量灵敏度因子的计算方法,接着分析了混合变量的耐压圆柱筒安全灵敏性,本文提出的灵敏度因子计算方法不仅适合于随机变量的情况,也适合于确定性变量的情况以及它们的混合情况,具有较大的理论和实践意义。更多还原

【Abstract】 In analysis of structural reliability, sensitivity estimation to each of structure variables is very important during designing、making and using structure. In this paper, various traditional methods on calculating sensitivity factors are extensively discussed. It is argued that these definitions are incomplete. Based on theses studies, a new method on calculating sensitivity factor is suggested and sensitivity aalysis of structural reliability is done about a thick-walled cylinder. Through practical examples, it is demonstrated that this new representation is more reasonable than the traditional definitions. The new method can be used not only in the structure with random variables or determinate variables, but also in structure with combined variables with random variables and determinate variables. This paper illustrates the potential for using such new method of calculating sensitivity factor in design decisions and making process on structure.更多还原