基于多片面拼接技术的多孔复杂构件等几何分析

The isogeometric analysis of multihole complex component based on multi sided splicing technology

基于等几何分析方法,采用NURBS基函数对曲面结构进行几何建模,同时用其代替有限元分析方法中的形函数进行结构的力学分析。针对多孔复杂结构,本文采用多片面拼接技术,保证整体的C0连续性和分析精度要求。首先通过小孔口平板算例验证方法的精确性,最后利用该方法对L型带孔板和机械铰链进行了分析,计算结果显示了方法的有效性。

Based on the method of isogeometric analysis, the geometric model of the curved surface is constructed by using the NURBS basis function, which is also to replace the shape function in finite element analysis to analyze the mechanical structure. In terms of the multihole comeplex structure, this paper adapts the multi sided splicing technology to guarantee the integrity of the C0 continuity and analysis accuracy requirements. First, the accuracy of the method is verified by the small orifice plate example. Then, L type belt holes and mechanical hinge are tested by this method. Finally, calculation results prove the method to be an effective one.