通过一平面4r机构，综合分析了附加扭簧对弹性机构动力平衡的影响，并对影响的机理进行了分析。
The effect of additional springs on the dynamic balancing of flexible mechanisms is further illustrated through an example of 4r four-bar linkage.
在此基础上研究了利用等式约束与不等式约束的惩罚函数法对平面多杆机构进行尺度最优综合的有关问题。
Some problems of optimum synthesis of planar multi-bar linkages are studied by the penalty function method with equality and inequality constraints.
此方法具有一般性，可用于研究其它平面复杂机构的综合问题研究。
The method used in this paper can also be used to solve synthesis problems of other complex planar linkages.
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