摘要
分析了 2类常用的确定性和随机优化反演方法 .首次将时域效应考虑到反演理论中 ,建立了相应的可考虑时间累计效应的参数反演误差函数 ,推导出相应的计算公式 ,并首次将可考虑时间累计效应的Bayes参数估计等理论引入到大体积混凝土不稳定温度场热学参数随机反演问题中 .通过典型实例分析 。
The two determined and stochastic back analysis methods are discussed and it is the first time that time's accumulating effect is considered The objective function considering time's accumulating effect is deduced out,and so is the corresponding formula It is also the first time that the Bayes stochastic back analysis method taking time's accumulating effect into account is used in back analysis problem of thermal parameter (coefficient of thermal conduction, coefficient of superficial radiation) of transient temperature field of mass concrete structure The problem of a typical mass concrete block is solved and some useful conclusions are drawn
出处
《华北水利水电学院学报》
2002年第4期6-9,共4页
North China Institute of Water Conservancy and Hydroelectric Power
基金
国家自然科学基金资助项目 (5 980 90 0 3)
关键词
混凝土
温度场
热学参数
随机反演
determinated back analysis
stochastic back analysis
temperature field
thermal parameter
