【摘要】 以正置负半径滚子直动推杆盘形凸轮机构为研究对象,给出新型机构形态、基本/总体尺寸、尺寸综合问题准确描述和基本思路步骤,构建尺寸坐标系O-r₀R、尺寸域Ω（r₀,R）,并离散化-网格化处理,提出4项约束条件和解析表达,采取遍历性方法,通过对单一/归并约束的可视映射,得到相应的边界、解域,再据多目标规划、可视映射,发现揭示出非劣解区域Ω_Σ^（1）、脊点P_j^*/脊线鄣Ω_P*和谷（脊）底点P^**/双优点P_b^*等重要规律、最优解存在性,得到对新型机构尺寸综合有指导意义的重要结论。更多还原

【Abstract】 The positive placement of negative radius roller direct drive disc cam mechanism was set as the study object to present the description and basic ideas of novel mechanism, basic/overall dimensions and dimension synthesis. The dimension coordinate system O-r0 R and dimension field were constructed, as well as the discrete-remesh process. Four constraints conditions and analytical express were put forward with the ergodic algorithm. The relative boundary and solution field were obtained according to the visual mapping of single/merger constraint. The important laws and optimal solution existence of non-inferior solution region, ridge point P_j^*/ridge line Ω_P* and bottom point P^**/double advantages P_b^*were revealed according to the multi-target project and visual mapping. This was significant for the dimension synthesis of novel mechanism.更多还原