| Green manufacturing, aiming to minimize the harm to the environment and maximize the utilization rate of the energy during the product's entire life cycle which begins with extraction of raw materials, proceeds through production and use, and ends with waste treatment, is an advanced manufacturing model. Production in the workshop is the key of resource consumption and environmental impact in manufacturing enterprises. The research on green production process is a hot spot and some fruits are achieved. The variety of resource consumptions and environmental emissions, however, are very difficultly inspected and measured in the production process of the manufacturing enterprises. And there are many complex relations among the producing information, furthermore, imprecise and uncertain information is generally involved. All of the above factors cause an obstacle to the realization of green manufacturing in the producing workshop. Therefore, there is a great need for the green production implementation architecture which is suitable for the situation of our country and can be directly applied to the practical production in our manufacturing enterprises.A product data management architecture for the green manufacture-oriented productionprocess——GPDM is proposed aiming at characteristics of resource consumptions andenvironmental emissions in the production process of manufacturing enterprises. The main contents of this paper are discussed around GPDM.(1) The definition of GPDM is given. The reasons for the selection of PDM as the information integrated platform of GPDM are explained through the analysis of present situation of PDM. Based on the green characteristic analysis of production process, the mode of green production process is built in this paper. The architecture of GPDM is designed. At the same time, the thorough researches on the application pattern and modules are carried out.(2) The fuzzy ER method is adopted to build up a concept model for the fuzzy data in the resource and environmental data. The fuzzy concept model is mapped on the logistic relation model. It has realized the fuzzy design of GPDM database system. The management of incompleteness and indefinability of the resource and environmental data on production process has been solved to a certain degree.(3) Every stage of workshop production course has been considered: GPDM green planning prevents the pollution and optimizes the production process before the producing; GPDM green production process controlling technology controls production from the point of view of green manufacturing and gives a green direction to the workshop production; GPDM environmental impacts assessment helps to judge whether or not the production process is environmentally friendly and gives the improvement opinions accordingly. Through the researches and applications of these key technologies, GPDM can support greatly implement for green manufacturing of workshop production process of manufacturing enterprises in our country.(4) The structure of GPDM database is analyzed and designed in view of the green production process. And various modes of data storage are built in response to the feature of all kinds of resource environment data during the production process. GPDM integrates environmental information to CAD by the database of GPDM. We can acquire environmental information in GPDM as conveniently as technical and cost information in PDM. It is a beneficial explore in the field of the information integration on green manufacturing of production process.(5) The database supported system and three key technologies of GPDM are implemented in this paper. And taking the I-PDM4.0 software for example, the correlative system-integration problems of GPDM and PDM are discussed.The implemented architecture and its key technologies of GPDM make the environmental burdens as the core of industrial process. It has a strategic significance for making the enterprise to realize green manufacturing during the production process. |
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