Research On Rapid Response Design Integrated System For Complicated Mechanical Product

With the changes of product market requirment and fierce competition, which require the enterprise must have the ability to quickly respond to the market. Combined with the current situation and development trend of enterpeise, aimed at the problems on how to establish the rapid design system which adaptes to the enterprise, complicated product variant design and parameter transfer method at the present stage. The theory, methods and techniques of product rapid response design are researched, and a complicated mechanical product rapid response design integrated system is established. The main research contents and results of the paper could be summarized as follows:(1) On the basis of analyzing the enterprise technology current situation and user’s requirements, according to the target and process of product design, multidisciplinary design optimization decomposition and expression method to disassemble the task for the complicated product design system is given. The method of visual optimization design is used in the complicated mechanical product design process, which improves the design quality and efficiency. Adopting axiomatic design method to establish the complicated product rapid design integrated system is proposed, which makes the system design accord with the user and design requirement, and the related affection relationship of system module is given. With the product rapid design technique and axiomatic design method, the complicated mechanical product rapid design system frame is provided.(2) The knowledge processing techniques of product model for rapid design system is researched; the expression, acquisition and realization of mechanical product modular design knowledge are given. The product knowledge model adopted knowledge ontology method is established, which realizes product design knowledge organization and management. The product knowledge ontology mapping method based on axiomatic is given. Adopting design structure matrix to cluster the product structure associated knowledge is researched,the module partition of product knowledge model is realized.(3) The CAD/CAE integrated technology based on feature transition is researched and realized, the similarity technology is used in the product rapid design modeling process, which improves the modeling efficiency. Large structure variant design is an important part of complicated mechanical product design, the characteristics of large structure variant design are analyzed, and a complicated product variant design method based on foundation structure element is proposed.The CAE analysis technology based on knowledge is researched, and fuzzy optimization method is adopted to realize product structure optimizing. The reusability method for complicated product rapid design is researched, which realizes the reuse of model, information, data and knowledge for product design process.(4) Aimed at the problems of assembly model variant efficiency for parameter complexity, the related affection relationships of model parameters are analyzed, and the parameter transfer structure adapted to complicated product variant is given. The parameters transfer rules adaptive for complicated product variant design are proposed, which improves the efficiency of product variant design.(5) The complicated mechanical product rapid design integrated system is established by the above theories and methods. The key technologies on how to realize the system are introduced; the system function and developing platform are given. As the examples, crane station rapid reponse design integrated system is developed and trench cutters rapid design new system model is given, which verify the research content, related technologies and methods of the paper.