Research On Method Of Energy Optimization Design Based On Design Unit And AD Theory

With the rapid economic development, human faces increasingly serious energy shortages and environmental pressures. To decrease product’s energy-consumed, an energy optimization design method is proposed which studies product’s energy character and other design messages together from the very beginning. Thus,the energy optimization design method is becoming the most effective method to improve product’s energy utilization rate. Under the National Natural Science Foundation of China (ID:50775061) support, this paper studies energy optimization design method thoroughly.Fusing Axiomatic Design and design unit together, an energy optimization design model is built to pack design domain mapping and energy utility model through design unit. This model unifies the description form of design and energy information in every design stage. It also combines function design process and energy information together. So the energy optimization design goal can be realized effectively.A kind of energy optimization design method based design unit is built. In this method, a design process model is proposed which includes converse and positive two energy design stage and regards energy as a main contented point during design process. Through converse energy design stage, the energy utility model of product level and energy optimization information is gotten. Under their constraints and guidance, the positive design stage is carry on to get product’s optimal design scheme, which contents product’s function realized process, solution combination, energy optimization and project decision four parts. In which, the product’s required function is realized by the design unit decomposing process model.The design method includes an innovative idea, which is connecting design process with energy attributes together by the energy utility model to achieve an organic connection between converse and positive design stage. To the main element of energy utility model (Energy Design Factor, EDF), an EDF utility model is built. Further more, EDF’s extraction method, EDF’s decoupling mechanism and EDF’s energy consumption influence degree quantification method is researched deeply.A multiple attribute decision making method for energy optimization design is explored, which fuses coupling degree, amount of information, energy consumption, technology, cost and social index. The evaluation index and weight defining method is researched, and an idea to evaluate product’s energy consumption indirectly by energy utility model is proposed.In this paper, the NC machine tool is served as a design example to validate the effectiveness of the energy optimization design method.