针对产品族中模块或零部件有效的分类管理和创新对象选择的问题,提出了一种基于模块化产品族结构树的模块或零部件通用性分析方法。在模块化产品族层次结构模型的基础上,细化了模块化产品族中产品的结构层次表达。考虑零部件和模块的重用数、成本、产品品种和批量,以及尺寸形状、材料、加工装配工艺等影响因素,分别在产品族模块层和零部件层上提出了单个元件的通用性计算方法,并将零部件按自制件和采购件分别进行通用性计算。然后基于PARETO法则和元件通用程度,确定模块和零部件的类型。最后给出了用某企业轮装驱动桥产品族通用化程度的算例。
Aiming at such problems as management of the modules or parts and selection of innovation object in modular product family,an analysis method for commonality of module part in modular product family was put forward.Based on modular product family hierarchical model(i.e.product layer,module layer,component part layer)a detailed product structure hierarchical tree was depicted.The component part commonality and module commonality in module layer and component part layer of product family were identified respectively.The formulations of the two commonalities take into account amount of component part or module,product variety,product volume,price/cost of the component part or module,size,geometry,material,manufacturing process and assembly.According to the source of component parts,the mathematical formulas of self-made parts and purchased parts were set up respectively in the component part layer.Then modules and components were classified based on the PARETO rule and the degree of commonality.Finally,an example of product family commonality of drive axle of wheel loader was given to indicate the effectiveness of the proposed method.