Product design and manufacturing based on information network systems

由于产品的组成复杂、功能多样，产品的设计和开发需要涉及多个学科和产品部件的高技术知识。因此，设计程序，可以集中设计人员的知识，产品设计和制造，应建立提供高性能的产品，在较短的开发时间。在本研究中，新的设计和制造方法的基础上集成密集型信息和决策理论，利用信息网络技术。特别是，多个设计师之间的协作技术给予优先考虑。它们是并行设计理论及其在同时进行设计过程中的应用.以下是本研究所开发的设计支援系统。(1)产品设计与开发中存在多个利益相关者时，寻求最优折衷解的技术。(2)分布式设计环境，利用网络代理在多个设计者之间进行合作，以获得最佳的设计方案。(3)无初始形状的机构优化生成方法。（4）具有优先关系的设计变量的同时优化技术。(5)提出了一种基于部件间输入输出关系的设计优化问题的划分方法和这种划分的设计优化问题的全局优化方法。(6)基于设计准则之间关系的自底向上设计优化技术。(7)基于创造性简化和澄清设计准则间冲突与合作关系的优化设计方法，阐明了已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集成的方法。

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.