Techniques Of Scheme Generation In Customer-Objected Conceptual Design Of Mechanical Products

Rapid response to customer requirements is the focus of competition in mechanical product market with the trend of globalization of economy. Conceptual design is the highest leverage point of quick delivery and product innovation. In this dissertation, techniques of scheme generation are systemically studied taking tool products as object.Based on the concept of the technical system concerning scheme generation, characteristics and tasks of various phases in the process of scheme generation are analyzed, the detailed flow of scheme generation process is designed, the general framework is built, and the realization of the function of modules composing the framework is analyzed in detail.After a deep analysis on customer requirements, the transformation strategy based on the classification and the specification of customer requirements is proposed, and that customer requirements are converted into the specification. This embodies adequately the customer-objected characteristic of scheme generation.Aiming at satisfying customer requirements, the mapping method of function and structure is adopted, and the transformation of function demand, movement function model, tool configuration position and design scheme is brought to success. On the basis of modules deployment in VPF, feasible scheme generation is achieved.The method of evaluation based on the gray correlation analysis theory is proposed and the optimization of feasible schemes is achieved.The prototype of customer-objected mechanical product scheme generation system is developed. The run result shows that the structure of the system is reasonable and the system possesses strong adaptability.