| The core of modern product design is creative design. Substaintial characteristic of product conceptual design is creativity. As the stage of product design reflecting intelligence of human and influencing scheme quality most sufficiently, product conceptual design is considered as the most important technique of product design. So it is important to research product conceptual design and conceptual creative design.In this paper, a general product conceptual design process model is provided by combining QFD and ES. Then based on this, the method of segmenting market and choosing target marketing is researched and the implement model of QFD was explored. Furthermore, how to get and settle the VOC of QFD and relation intensity of HoQ is studied. A knowledge-based conceptual system is created. On the side of creation of knowledge base, the Database-based knowledge representation is put forward, this method makes the database have the knowledge base function, makes the knowledge representation and the knowledge management easy. At one time, to meet this representation, the reasoning mechanism based on database is brought out. And this mechanism improves the efficiency of Expert System. At last, based on before mentioned work, a knowledge-based conceptual design software system is developed. And the reducer casing is used to apply and test this system. |
