一种平面四连杆机构轨迹综合的新方法

A New Method in the Path Svnthesis of Planar FOur-Bar Linkage

根据平面闭合曲线切线象理论，定义了切线全旋转角的概念，提出并论证了一种用曲线的曲率关于切线全旋转角的函数和进行平面四连杆机构轨迹综合的新方法。这是一种可应用于工程设计的几何系统分析法。

In light of the image point of the tangent of the planar closed curve,this paper defines the total rotational angle of the tangent.On this basis,the paper furthermore advances and demonstrates a path synthesis of the planar four-bar linkage by using the functional relation between the curvature of the coupler curve and the total rotational angle of its tangent,This is a geometrical and systematic method of analysis,which can be widcly uscd in engineering design。