再现连杆角位移机构的稳健优化设计

Robust optimization design of angle displacement generation mechanism

以连杆角位移再现平面四杆机构为例,讨论了其设计变量、噪声因素以及质量特性和目标函数的确立过程,建立了基于容差模型的角位移再现机构的稳健优化设计数学模型;给出设计结果,并与原方案进行了比较.结果表明,该方法在保证机构运动质量稳健性的同时,可以获得更大的设计变量容差,从而提高机构的可制造性,降低成本.

As an angle displacement generation mechanism for example, the process of choosing design variables, noise factors and quality targets was given. A mathematical model of robust design for angle displacement generation based on the tolerance was established. The result of design was given and compared with that of the original projects. It is shown that the robustness of movement precision can be insured and the larger tolerances of each rod of the mechanism can be determined by this method, so the manufacturability can be improved and the cost can be reduced.