Research On CCM_A Modeling Technology For Product Multidisciplinary Cooperative Design Process

With the increasing complexity of product function and structure, Product Multidisciplinary Cooperative Design (PMCD) becomes fairly necessary. Since the complex and dynamical process of PMCD brings great challenge to product development process management, it is more important to find useful process model of PMCD. The research of the thesis focuses on a new method of PMCD process modeling (Cooperating Correlative Map Base on Activity, CCM_A) .Based on the summary and analysis of concept and feature of PMCD, the thesis summarizes the characteristics of modern design process with an example of design process of new type self-driven towing machine. Then it analyzes the collaboration and confliction characteristic of PMCD in detail, and puts forward a quantitative definition of synergy and conflict degree.According to the process characteristics of PMCD, based on Activity Theory and the method of diagrammatic representation of activity network, and also the modeling method of collaboration, proposed by professor Kiyoshi Itoh at Sophia University, CCM_A process model of multidisciplinary cooperative design is put forward and the modeling method is defined formally and graphically.Since confliction is inevitable in PMCD, in the thesis, conflict representation and conflict resolution based on CCM_A are researched. A tearing method of coupled task set based on synergy is proposed. the task's reasonable decomposition and planning are completed. Then the conflict resolution is realized. Permutation reduction method is proposed and the conflict test and resolution within CCM_A process model of time restriction is implemented. By configuring the conflict test resolution module in the process model, the conflict can be shown explicitly. A multi-level conflict resolution strategy based on the conflict degree is proposed.In order to build a correct structure and reasonable process model of CCM_A, according to the characteristics of sequence, information and material flow, a multiple-flow structure test method based on semantic reasoning is put forward and structure test of CCM_A process model is implemented. According to the characteristics of hierarchy, multi-field and collaboration of CCM_A process model, the multi-layer architecture and strategy of simulation are constructed and developed. In order to construct CCM_A process model conveniently and quickly, Microsoft Off In order to construct CCM_A process model conveniently and quickly, Microsoft Office Visio, with effective functions of visual modeling and re-development, is used to develop visual CCM_A process model tool and the structure test of process model is implemented. In terms of the characteristics of CCM_A process model, OPNET is chosen as a platform to realize the layered simulation of the model in PMCD.In the thesis, the applicable method and cases for CCM_A process model in PMCD are provided within the engineering application example. It is concluded that the result is proved the method to be right and a new useful way in PMCD process modeling.