一种基于Ishai应力准则的双方向结构拓扑优化方法

在传统的ESO方法基础上,考虑到Ishai应力准则对工程结构材料有广泛的适用性,研究了基于Ishai应力准则的双方向渐进拓扑优化方法。该方法是对传统方法和目前的双方向法的改进。算例表明,该方法对桥梁等混凝土结构有广泛的工程应用价值。

The Complex Analysis Method of Numerical Identification of Parameters of Quasiideals Processes in Doubly-Connected Nonlinear-Layered Curvilinear Domains

The method of numerical solving of nonlinear model problems of theory of a complex quasi-potential in doubly-connected nonlinear-layered curvilinear domains considering inverse influence function of flow on a conductivity coefficient of medium was developed on the basis of synthesis of numerical methods of the quasi-conformal mappings and summary representations in conjunction with domain decomposition by method Schwartz. The proposed algorithm allows finding the potential of the quasiideals field, construction a motion grid （fluid-flow grid） simultaneously defining the flow lines that separate of sub-domains constancy of coefficient conductivity and identification the piecewise-constant values of coefficient conductivity, the local flows for the known measurements on boundary of domain.