平面多复链杆体系几何组成分析的作用线法

Line-of-effect method for geometrical composition analysis of planar multiple-complex rod system

针对平面多复链杆体系机动分析提出了一种基于零载法的新方法--作用线法,分析阐述了其基本原理,证明了其判断几何可变的充分性,并对其使用条件等进行了详尽讨论。该法原理直观、简明,易于掌握使用,增加了结构力学学习的趣味性,可作为结构力学几何组成分析教学的拓展内容。

In this paper,a new method based on zero-load method for maneuvering analysis of planar multi-complex link system,action line method,is proposed. Its basic principle is analyzed and expounded. The sufficiency of judging geometric variability is proved,and its application conditions are discussed in detail. The principle of this method is intuitive,concise,easy to grasp and use,which adds interest to the study of structural mechanics and can be used as an extension of the teaching of structural mechanics geometry composition analysis.