三峡大学学报（自然科学版）2017，Vol.39Issue(2)：1-5,5.DOI:10.13393/j.cnki.issn.1672-948X.2017.02.001
基于改进人工鱼群算法的碾压混凝土坝粘弹性参数反演
Inverse Analysis of Viscoelastic Parameters of Roller Compacted Concrete Dam Based on Improved Artificial Fish School Algorithm
摘要
Abstract
To simulate the rheological properties of roller compacted concrete dam (RCCD),generalized Kelvin model is selected to describe the constitutive relation of dam material;and then a finite element computing model is built;so that the relationship between dam displacement and its viscoelastic mechanics parameters is figured out.Based on measured data,using statistical model to separate out the water pressure component and aging component,the objective function is built;and the improved artificial fish school algorithm(IAFSA),which has more efficient and accurate ability of global optimization compared with the artificial fish school algorithm(AFSA),is adopted to the inversion of viscoelastic mechanics parameters.The optimization results of contrastive analysis prove the superiority of IAFSA.The process of inversion is realized by VB programming design for IAFSA combined with calling the calculation command of ANSYS.The achievements of the engineering project at the end of the text prove that the inversion method can be applied to back analysis field of dam structure.关键词
碾压混凝土坝/粘弹性参数/改进人工鱼群算法/反演分析Key words
roller compacted concrete dam/viscoelastic parameters/improved artificial fish school algorithm/inverse analysis分类
建筑与水利引用本文复制引用
路志阳,周兰庭,高迪..基于改进人工鱼群算法的碾压混凝土坝粘弹性参数反演[J].三峡大学学报（自然科学版）,2017,39(2):1-5,5.基金项目
国家自然科学基金资助项目(51209078) （51209078）
