Research On Methodology Of Conceptual Design For Product Innovation

After a systematic analysis of the state-of-the-art of research on conceptual design, a conceptual design methodology for product innovation is originally put forward for computer-aided conceptual design (CACD) of technical artifacts, aiming at solving some crucial issues in this research area. The primary contributions are as follows.First, research on functional space expansion process for product innovation. A generic functional model and an effect model based on feature are proposed. The functional space expansion strategy based on derivate of original aim function and reasoning based on physical quantities of effect are also put forward. A process of functional space expansion with three phases is then discussed in detail, which includes four layers: original function layer, derivative function layer, effect layer and physical quantity layer. A computer aided functional design software platform is then developed. The functional design of new devices for decreasing resistance of amphibious vehicle and new devices for separating material is given as an example, which demonstrates that the methodology is obviously helpful to produce valuable concepts for product innovation.Secondly, research on knowledge organization method of principle solution for knowledge reuse and principle conceptual design for product innovation. After the construction model of principle solution repository and the representation of principle solution are proposed, the organization model of principle solution is then built up. The sovling process model of product priciple conceptual design based on function matrix is then presented, which involves three processes: function matching, principle solution restriction matching and function structure generating dynamicly based on design catalogs. The principle conceptual design of new devices for decreasing resistance of amphibious vehicle and new brakes of a bicycle is given as an example, which demonstrates that the methodology is obviously helpful to produce valuable concepts for product innovation.Thirdly, research on the share strategies and use methods of distributed conceptual...