任意三角形构型球形网架反分析及特征参数的确定

Inverse Analysis and Characteristic Parameters Determination of Arbitrary Triangular Configuration Spherical Grid Frame

文章根据拓扑学、球形多面体相关理论,对青海天文台望远镜球形罩的几何特性进行了反分析,创建了与该天线罩实体拓扑关系和空间几何计算条件一致的三维模型。并由此构建了一种新的任意三角形构型多面体,对该任意三角形构型多面体的特征点坐标、特征杆长、特征角等参数进行了计算,使得几何分析得到简化,为实现任意三角形构型多面体的设计制造提供了依据,为天线罩设计提供了新思路。

An inverse analysis of the geometrical nature about Qinghai observatory telescope spherical cover is performed according to the topology and spherical polyhedron theory, and a three-dimen- sional model is created in agreement with the topology and the spatial geometrical calculation condi- tions of the cover, thus constructing a new arbitrary triangular configuration polyhedron by which the characteristic point ~;oordinates, the lengths of characteristic poles, and the characteristic angles are calculated, thus simplifying the geometrical analysis, providing the justification for the design and manufacturing of the arbitrary triangular configuration polyhedron, and proposing a new idea for an- tenna shade design.