基于Patran/Nastran的箱形梁结构优化设计研究

Study on Structural Optimization Design of Box Girder Based on Patran/Nastran

起重机械的主要性能很大程度上取决于其箱形梁结构。在对箱形梁进行全面的受力分析的基础上,建立了桥式起重机主梁结构的优化数学模型,并采用有限元软件 Patran/Nastran 和 MMA 算法程序对其进行了结构优化设计,最终得到了满意的结果。

The main persformance of a crane largely depends on the structure of its box girder On the basis of the comprehensive force analysis of the box girder, a optimization model of the ,girder structure of bridge crane is established, and then the structure of box girder is optimized with finite element software Patran/Nastran and MMA algorithm program. Finally, the satisfied results are obtained.