平面连杆机构运动误差综合的研究（Ⅰ）──运动误差综合的单位向量法

On the Synthesis of the Kinematic Errors in Planar Mechanisms(Ⅰ)------A unit vector approach for synthesis of kinematic errors

以运动误差分析为基础，从机构输出运动误差最小出发，给出了机构输出运动误差极值理论，提出了机构运动误差综合的单位向量法。该法具有公差分配合理，简单为行，无需优化，适用空间机构等优点，最后给出了算例．

Based on the kinematic error analysis,this paper dcvelops the limit value theory of kinematic errors in order to get the output errors of mechanisms minimum and presents a unit vector approach for synthesis of kinematic errors so that allocation of dimensional tolerances iS simple, reasonable,and does not need optimization。The theory can be ap- plied to spatial linkages,Example has been included to illustrate the method.