Product design and manufacturing based on information network systems

由于产品组成复杂、功能多样，产品的设计和开发需要涉及多学科、多产品零部件的高技术知识。因此，应该构建能够集中设计者关于产品设计和制造的知识的设计程序，以在较短的开发时间内提供高性能的产品。在这项研究中，利用信息网络技术，基于集成的集约信息和决策理论，开发了新的设计和制造方法。特别是多个设计者之间的协作技术被优先考虑。它们是并行设计理论，其应用是同时进行设计过程。介绍了本研究开发的设计支持系统。(1)在涉及产品设计和开发的多个利益相关者存在的情况下获得最优折衷解的技术。(2)分布式设计环境，利用网络代理在多个设计者之间协作获得最优设计解。(3)一种不需要任何初始形状的最优机制生成方法。(4)设计变量的同时优化技术，(5)基于部件间输入/输出关系的设计优化问题的划分方法和分区设计问题的全局优化方法。(6)基于设计准则之间关系的自下而上的设计优化技术。(7)基于创造性简化和澄清设计准则之间的冲突和协作关系的优化设计方法。明确了所开发的设计支持系统之间的关系，讨论了利用信息网络系统实现的集成方法。

Design and development of products require high technical knowledge concerning multiple disciplinary and product parts since products have complex component and various functions. Therefore, design procedures, which can intensively concentrate designers knowledge about product design and manufacturing, should be constructed to provide high performance products in short development time. In this research, new design and manufacturing methodologies are developed based on integrated intensive information and decision-making theory using information network techniques. Especially, collaboration techniques among multiple designers are given priority of consideration. They are concurrent design theory its application to simultaneously carry out design processes. Following shows the design support systems developed in this research.(1) Techniques for obtain optimal compromised solution in the situation that multiple stakeholders, concerning the product design and development, exist.(2) Distributed design environment to obtain optimal design solutions with corporation among multiple designers using network agent.(3) An optimal mechanism generation method without any initial shapes(4) Simultaneous optimization techniques for design variables, which have precedence relationships.(5) A partitioning method for design optimization problems based on input/output relationships among components and a global optimization method for such partitioned design problem.(6) Bottom up design optimization techniques based on relationships among design criteria.(7) Optimal design methods based on creative simplification and clarification of conflicting and cooperative relationships among design criteria.The relationships among these developed design support systems are clarified and integration method are discussed to be implemented using information network system.