摘要
利用层叠模型编程方便的优点,采用层叠模型来考虑软土的粘弹塑性,研制了基于层叠模型的软土流变计算程序OMFEM;在此基础上,采用遗传算法来全局搜索软土流变参数,将软土流变层叠模型的计算程序OMFEM和遗传算法有机结合,编制了基于遗传算法和层叠模型的软土流变模型的辨识程序GAIOM,并最终实现了对软土流变模型和模型参数的辨识。工程实例证实了采用遗传算法和层叠模型来辨识软土流变模型的有效性。
Standing on the merits of overlay model easy to be realized by programming,the viscosity,elasticity and plasticity of soft soil are expressed overlay model,furthermore,the program OMFEM(Overlay Model with Finite Element Method) evaluating the rheological behaviors of soft soil is developed.The global search of rheological parameters is realized with the genetic algorithm.Combined OMFEM with genetic algorithm,the identification program GAIOM(Genetic Algorithm Identification of Overlay Model) of soft soil rheological model is proposed to identify the rheological model,and the example verifies the validity of the identification of soft soil rheological model.
出处
《应用力学学报》
CAS
CSCD
北大核心
2005年第3期364-368,共5页
Chinese Journal of Applied Mechanics
关键词
遗传算法
层叠模型
模型辨识
genetic algorithm,overlay model,model identification.
