基于机架杆方向结构误差优化综合曲柄摇杆连续轨迹生成机构  

OPTIMAL SYNTHESIS OF CRANK-ROCKER LINKAGES FOR CONTINUOUS PATH GENERATION USING ORIENTATIONAL STRUCTURAL ERROR OF THE FIXED LINK

作　　者：周洪[1] 邹慧君[1] 

机构地区：[1]上海交通大学机械工程学院,上海200030

出　　处：《机械工程学报》2000年第5期42-45,共4页Journal of Mechanical Engineering

摘　　要：提出了利用机架杆方向结构误差优化综合曲柄摇杆连续轨迹生成机构的方法。基于该结构误差建立了优化综合模型，采用改进遗传算法进行优化计算。机架杆方向结构误差不仅计算便利，且能有效反映出实际生成的轨迹曲线与理想轨迹曲线间的差异，避免了在两轨迹曲线上选择对应比较点的困难。改进遗传算法保证了获得全局最优解。综合实例结果表明了本方法的有效性。An optimal synthesis method of crank - rocker linkages for continuous path generation is put forward, which sets up the optimal synthesis model based on the orientations structural error of the fixed link and utilizes the modified genetic algorithm to obtain the global optimal solution. The orientational structural error of the fixed link can effectively reflect the difference between the generated curve and the desired curve, avoid the difficulty of selecting corresponding comparison points on the two curves in the traditional synthesis methods and decrease the independent design variables from ten to sit. The results of synthesis examples verify the effectiveness of the proposed method.

关 键 词：连杆曲线 结构误差 优化综合 遗传算法 轨迹生成 

分 类 号：TH112[机械工程—机械设计及理论]