平面连杆机构完全力平衡中的质量流

The Mass Flow in Fully Force-balancing of Planar Linkages

提出了质量流概念。认为，只要机构中的全部真实质量都能流入机架，则该机构就能达到完全力平衡。采用质量流的概念不仅可以使完全力平衡的过程变得更加通俗易懂，而且能发现某些以前被误认为是不可行的配重组合方案实际上是可行的。

A concept of mass flow is proposed, according to which, a linkage can be fully force-balanced, so long as all the ture masses in the linkage have flowed into the frame. The concept not only can make the procedure of fully force-balancing of finkages easier to understand, but also can explore some of the feasible counterweight combinations which were once thought to be infeasible..