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平面高级连杆机构的位置分析是机构运动分析中较为困难的问题。本文提出用“虚拟机构法”来求解平面高级杆组的位置。此法将平面高级杆组分解为两个具有同一原动件的Ⅱ级机构,把它们的同名点的距离平方作为分离函数,对分离函数求根即可解得平面高级杆组的位置。“虚拟机构法”使用简便,收敛速度快,具有较大的实用价值。文中还以双肘杆机构为例说明其计算过程,列出其计算结果。
Plane analysis of the location of the advanced linkage mechanism is a more difficult problem in the analysis of the mechanism movement. In this paper, the “virtual mechanism method” is proposed to solve the position of the plane advanced pole group. In this method, the plane group is decomposed into two class Ⅱ institutions with the same motive member. The square of the distance between the same name points is taken as the separation function. The root of the separation function can solve the position of plane group. “Virtual agency law” easy to use, fast convergence, has greater practical value. The article also takes the double-toggle lever mechanism as an example to illustrate its calculation process and lists its calculation results.