Research On Key Technologies For Complex Product Collaborative Development Platform

With the fierce global economic competition, manufacturing enterprises are confronted with pressure of reducing product development costs and shorting product development cycle.Complex products are the complex systems with multiple disciplines, such as mechanical, electronic, hydraulic and control, whose creative development stems from single domain to multi-domain, from single application software to comprehensive application of several types of software. The team members, development knowledge and data resources, which are involved in their development, are more extensive to make the collaborative and integration even complex. Thus, the development of complex products is a great challenge to the traditional development mode of a enterprise, which includes the comprehensive application of various softwares, the integration and sharing of product data, the unified management of product knowledge, the unified supervision of business process, the dispatching of research and development resources and the collaborative optimization of multi-disciplinary.In order to meet the current characteristics and requirements of complex product development, this thesis studies collaborative process management mechanism in a distributed environment, and establishes a Complex Product Collaborative Development Platform (CPCDP).Firstly, based on review and analysis of complex product collaborative development modes, this thesis studies the internal needs, functional systems and key technologies of CPCDP. And a framework of CPCDP is established.Secondly, three key aspects of CPCDP, including integrated process management, multi-domain product model and product design method based on integration system level simulation and product configuration are discussed in detail.1) Collaborative product development process for complex product is hierarchical, nested, distributed, and it is difficult to manage well. In the thesis, a hierarchical model of product development process is researched. And an integrated process management framework is established. Based on t hierarchical model and multi-level workflow space, deep integration between the project workflow management and workflow management is achieved. 2) A spatial model of product development is presented. The composition and mechanism of collaborative product development are studied on the integration and coordination point of view, and the knowledge object of collaborative product development process is researched. Through the studies, a knowledge representation method based on Modelica is provided.3) The thesis researches rapid products design implementation mechanism for mass customization, and a rapid design method based on integration system level simulation and product configuration is proposed. Expression of multi-domain knowledge and product family model are studied, and the configuration reasoning process based on recursive arithmetic is given. In order to simulate configuration scheme, a mapping methods between configuration scheme and simulation model based on Modelica is proposed, and InteMworks software is used to execute simulation programmers.Finally, based on dot NET framework and SOA technology, a prototype system of CPCDP is developed. And its system architecture and key functions are described. At the same time, the implementations of above key technologies in the enterprise are introduced, and relevant application examples are show.