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Distributed design support system for concurrent process of preliminary aircraft design

concurrent engineering-RESEARCH AND APPLICATIONS 2003年第2期11卷 93-105页

作者： Fujita, K Kikuch, S Osaka Univ Grad Sch Engn Dept Comp Controlled Mech Syst Osaka 5650871 Japan Fuji Photo Film Co Ltd Prod Engn & Dev Div Kanagawa 2500193 Japan

This paper proposes a framework for developing a distributed design support system for concurrent design process and applies it experimentally to preliminary aircraft design. The design process of a large complicated system is characterized by compromising between various criteria and relationships among quasi-independently decomposed subproblems. The preliminary design of aircraft is typical of such a design problem. In this paper, after the design problem is defined as a lumped mass system, the types of design phases, knowledge and operations are formally defined. The design process is decomposed horizontally and vertically, and the coordination mechanism is categorized into inter, inner and global aspects. Based on these, a computational method for supporting design refinement is developed using mathematical programming techniques. Furthermore, an experimental computer-aided design system is implemented for the preliminary design of aircraft using knowledge-base system techniques and agent-based distribution of tasks, etc. Its application demonstrates the validity and promises of proposed models and procedures.

关键词： computer-supported concurrent engineering computer-aided design goal-driven coordination distributed problem-solving agents preliminary design aircraft design

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Distributed design support system for concurrent process of preliminary aircraft design

Distributed design support system for concurrent process of ...

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Symposium on Tools and Methods of Competitive engineering

作者： Fujita, K Kikuch, S Osaka Univ Grad Sch Engn Dept Comp Controlled Mech Syst Osaka 5650871 Japan Fuji Photo Film Co Ltd Prod Engn & Dev Div Kanagawa 2500193 Japan

关键词： computer-supported concurrent engineering computer-aided design goal-driven coordination distributed problem-solving agents preliminary design aircraft design

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Agent-based distributed design system architecture for basic ship design

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concurrent engineering-RESEARCH AND APPLICATIONS 1999年第2期7卷 83-93页

作者： Fujita, K Akagi, S Osaka Univ Dept Comp Controlled Mech Syst Suita Osaka 5650871 Japan

This paper proposes an agent-based distributed design system architecture for complicated, large engineering systems and develops an experimental implementation of the architecture for basic ship design. First, dependency and concurrency in design activities of an engineering system are discussed from the viewpoints of hierarchical system structure and entity-and-attribute relationship. It reveals the possibilities of parallel execution of design operations from a systematic viewpoint. Second, the design operations are classified into generating system structures, configuring spatial arrangement, determining system attributes and selecting system components, in the architecture. design operations for attributes that are major parts are modeled with object orientation, and they are distributed to agents by extending an object-oriented programming technique to an agent approach. The others are encapsulated as independent task agents. After describing key concepts for its computer implementation, this paper shows an application for basic ship design.

关键词： distributed design system computer-supported concurrent engineering agents object-orientation engineering system design ship design

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