摘要
建立了弹性本构参数区间反问题的数值模型,利用区间参数摄动有限元方法和基于网格划分策略的连续域蚁群算法进行求解,探讨了非均质、不确定区间半径、初值选择及数据噪音对反演结果的影响,数值验证给出令人满意的结果。
This paper presents a numerical model solving the inverse problem of intervals of elastic constitutive parameters, and a perturbation finite element technique with interval parameters and a Gridding Partition based colony algorithm are employed in the solution process. The impacts of nonhomogenity, radius of uncertain intervals, initial guess and data noise on the solution are taken into account, and satisfactory results are achieved in the numerical verification.
出处
《工程力学》
EI
CSCD
北大核心
2012年第1期7-12,19,共7页
Engineering Mechanics
基金
国家自然科学基金项目(10772035
10721062
10472019
11072043)
国家重点基础研究规划项目(2005CB321704
2010CB832703)
关键词
区间反问题
弹性
本构参数
摄动有限元方法
蚁群算法
inverse problem of interval
elasticity
constitutive parameter
perturbation finite element method
ant colony algorithm
