摘要
提出了一种空间可展桁架结构 ,它由六面体基本单元组成 ,这种空间可展桁架结构的空间几何关系在展开和收拢状态时比较复杂 ,文中详细分析了它的几何协调性 ,并给出了可伸缩杆件的位置和长度计算的方式 ,并根据这种可展桁架结构的构成原理 ,设计和制作了一个切割旋转抛物面可展桁架结构模型 ,给出了它的几何协调性分析结果。
A method to analyze the deployable space-truss is proposed in the paper.The space-truss is made of many hexahedron elements in certain form.It can be stowed and deployed with stretching and shortening its diagonal member.The length of each member may be different in two conditions:stowed and deployed.It is obvious that the nodal coordinates are complex to be determined.So,it is needed to make a geometrical-compatibility analysis for the space-truss.A space-truss model is performed in a scale of one-third by the proposed method.It is feasible to design the space-truss structures.
出处
《土木工程学报》
EI
CSCD
北大核心
2001年第4期15-21,共7页
China Civil Engineering Journal
基金
国家自然科学基金 (69982 0 0 9)
关键词
可展桁架结构
几何协调性分析
六面体单元
杆件闭环结构
deployable truss structure,analysis of geometrical compatibility ,stretchy rod,hexahedron module,the strut closed loop
