关键词: 参数基元网络, 设计变更, 变更传播路径优化, 产品开发, 汽车离合器

Abstract: Due to the complex correlation between design parameters,it is difficult to avoid the propagation of changes in the product development process.To reduce the risks of increased development costs and prolonged development cycles caused by the propagation of changes,an optimization method for the propagation path of changes based on the product parameter basic-element network was proposed.Based on the analysis of parameter association relationship and change propagation mode,combined with basic-element theory,the design parameters was formally expressed,and a product parameter basic-element network model was constructed to replace the traditional module or component correlation network model.The characteristics of change impact propagation was analyzed and the change cost evaluation model was studied.A change propagation path optimization algorithm based on timing difference was designed to search and obtain the optimal change propagation scheme efficiently.An automobile clutch was used as a case to verify the effectiveness of the proposed method.

Key words: parameter basic-element network, design changes, change propagation path optimization, prduct development, automobile clutch