Research And Practice On Knowledge Management System Of Collaborative Forging Products Development

The people, knowledge, and information are decisive key elements in contemporary manufacturing systems. Design data and knowledge are more and more obvious in restriction of manufacturing industry s development, more outstanding in the forging product development. To realize the goal of product development, a lot of efforts have to be taken, such as utilizing the advanced knowledge management theory and achievement of the information technology to manage the existing design knowledge resource effectively, strengthening the management in the process of regular and innovation design, offering a good supporting environment to designers, making designers be able to obtain and use the design knowledge fast, making full use of the designers' intelligence and wisdom. The research on above issues has very important meanings to the improvement of the products competitiveness of the domestic forging industry.Under the guidance of the knowledge management theory, a systematic research is carried out in this paper which focuses on the architecture and key technologies of knowledge management for the forging product development. A prototype platform is set up to realize knowledge organization, acquisition, transferring and sharing in the process of forging product development based on the network technology , CSCW technology, artificial intelligence technology and data base technology. This research is of very important theoretic and practical value in improving the design supporting capability in forging product development.The main content of research is as follows:1. In order to set up architecture of knowledge management system, the purpose, task, the main content and support technologies of the knowledge management system are summarized. The architecture, the network model and the function model of the forging product development knowledge management system are brought forward. The development measure of the management system is addressed.2. To organize and represent the knowledge of the forging product development, the domain knowledge, design case and design history are studied. In order to represent the design rational, the QAC(Question Answer Criteria) model is put forward. The integrated knowledge expression model towards cooperative product development is proposed. The structure and content of the design repository in the knowledge management system are studied. The procedure of forging product development on the basis of design repository is established.3. To improve the efficiency of knowledge acquisition and realize intelligent design support in the course of forging product development, based on push/pull and KDD technology ,an intelligent knowledge supply approach is presented. It includes the agent model, the user intent matrix model and relevant cluster analysis algorithm.4. The research on discuss and evaluation model aims at developing a cooperate design environment that supports the combination and externalization of the information and knowledge in the course of communicating to the maximum extent. Based on Delphi, Brainstorm, group procession theory and Metasynthesis, one integrated discuss and evaluation model is brought forward. This model is applied to analysis the formability and process optimization of the forging components. A design rational abstracting method and support tool is addressed to help the knowledge engineer acquiring QAC from the workshop recorder.5. The prototype system is set up in coordination with the network model and the function model of the knowledge management system of forging product development. The main functions, such as the synthetic management(task management, file management and personal management), personal secretary, BBS, the workshop environment ( meeting room, electron white board and evaluation on the Web), knowledge supply and design repository are carried on practice. The exactness and feasibility of the prototype system have been verified.