平面刚体双摇杆导向机构的单死点问题——六杆三级机构的应用条件之一

Problem of Single Dead Center for Plane Rigid Body Guidance Mechanism with Two Roker Bar-One of The Applied Conditions for Third-Order Six Bar Mechanism

本文提出了平面刚体双摇杆导向机构通过死点可能出现运动不确定的情况,此情况成为以三级六杆机构代替四杆机构的条件之一。

The possibility of kinematic non-determinacy for the Plane rigid body guidance mechamism with two roker bar when passing through the dead center is indicated in this paper. It becomes one of the conditions that the four bar mechanism ought to be replaced by thrid-order six bar mechanism.