多重动态子结构技术在起重机分析中的应用

Application of Multilevel Dynamic Substructure Technique in Finite Element Analysis of Crane Structure

依据多重动态子结构技术的基本原理,建立了大型起重机门架结构的有限元模型,并进行模态分析,为其他动力学分析奠定了基础,此法在精度不变的前提下,提高了计算效率,充分显示了多重动态子结构技术在大型起重机结构动力学分析中的优越性,具有广泛的应用前景.

The finite element modal of craners gantry is built based on the principle multilevel dynamic substructure technique. The modal analysis of the crane＇s gantry has proved that the use of the technique can save computing time and greatly raise efficiency, which embodies the multilevel dynamic substructure technique superiority for the analysis of the large crane＇s structure and wide prospect.