Abstract: To make collaborative consideration for product platform configuration in the process of product family design's modularity,the hierarchical joint optimization for modular design coordinated with product platform configuration was researched A 0-1 nonlinear bi-level programming model was developed,which showed the leader-follower relationship between modular design and product platform configuration.To solve this model,a nested genetic algorithm was designed.The proposed model was applied to a case study of automotive platforms modular design,and the joint optimization result was compared with results driven by two-stage approach and all-in-one method so as to prove the advantage of this joint optimization model.

Key words: modular design, platform configuration, bi-level programming, nested genetic algorithm, product development

摘要： 为了在产品族设计中的模块化过程中协同考虑产品平台配置,对模块化设计和平台配置的关联优化进行研究,提出一种基于主从对策的决策机制,构建了一个0-1非线性双层规划模型,该模型体现了模块化设计为主、产品平台配置为从的主从关联关系。根据模型特点设计了一种嵌套式遗传算法和结合问题特色的染色体处理策略。将模型应用到一个汽车产品平台案例中,并将优化结果与基于单层规划的两阶段方法和集中制方法进行比较,证明了所提方法的合理可行性。

关键词: 模块化设计, 平台配置, 双层规划, 嵌套式遗传算法, 产品开发