摘要
板片空间结构是一种新型的结构体系,它是以一系列小板为基本构件,通过适当组合形成的具有空间受力性能的结构形式。本文在对这类结构有限元分析的基础上,应用超级元分析的基本思想,对这类结构进行了分析,给出了这类结构超级元分析方法的基本公式。算例分析结果表明:与一般有限元法相比,超级元法大大节省了计算量,结点自由度下降了二个数量级,且分析结果和有限元法基本吻合,为这类大跨空间结构应用微机分析提供了一个新的方法。
Thin-plate composite space structure is a new pattern of structure. It is made up bymany small thin-plates,beams or bars. Based upon the analysis of this structure by regularfinite elements,the paper analyses the mechanics properties of this structure with super fi-nite elements,and gives the basic formulas for the analysis.From the computations,it isfound that good approximations are obtained,and computing time,costs and storage re-quirements are saved by applying the super elements as compared with regular finite ele-ments.