零件分类, 约束满足优先级, 尺寸冲突, 尺寸变化概率分配, 变型设计

Dimension constraint satisfaction priority of different types of parts was defined based on the part classification in mass customization. The variant design strategy was put forward for enhancing part reuse level of variant products by transferring/postponing the dimension variant requirements of parts. And dimension constraint conflict forms resulting from part reuse were analyzed. Aiming at the issues of dimension variant transferring/postponing, a variant probability matrix among part’s dimensions was constructed. And a probability assignment model of dimension variant requirements based on Bayesian was proposed which can concentrate variant design requirements on few parts so as to realize reuse of other parts. Based on these, variant design process for products constituting of multi-type parts was presented based on dimension variant transferring/postponing. Finally, an example was given to verify these. It is shown that the part reuse level of customized products is increased effectively by transferring and postponing dimension conflicts, and assigning dimension variant probability dynamically according to part classification information. 

part classification, constraint satisfaction priority, dimension conflict, variant probability assignment of dimension, variant design