复矢量法在虚位移原理中的应用

Application of Complex Vector Method to the Principle of Virtual Displacement

提出了用复数———极坐标矢量法（ 简称复矢量法） 来求虚位移，较传统的方法（ 解析法、几何法） 概念清晰，过程简单，且不需画出虚位移方向，为虚位移原理求解质点系的平衡问题提供了较大的方便．

In this paper, a new method is proposed to seek virtual displacement by means of complex polar coordinates vector method. It is clearer in concept and simpler in process than the traditional method (analytical and geometrical methods). Most of all, it is not necessary to draw the direction of virtual displacement. Big convenience is provided for solving equilibrium of particles system.