Mechanical Products Based On Knowledge Of The Rapid Innovation And Design Research

According to the characteristic of product conceptual design, a product design system and the fast production product plan module based on the knowledge base are established for the fast innovation design of product.The conceptual design process model of common product is put forward based on the analysis of the processes of product design and product conceptual design. With this model, the innovation design methodology is analyzed by the method of decomposing and reconstructuring of function.In order to resolve the problems in conceptual design process, such as nondeterminism, the morbid state and multi key existing in the function structure direct mapping, the knowledge expression method based on the function surface is applied. The Surface-Character-Oriented classification code system based on the generalized localization pattern is proposed according to the generalized localization principle.Based on the theory mentioned above, the mechanical product design system based on knowledge is set up. The function mode storehouse, shell storehouse and scheme storehouse are founded to express and store the knowledge by the Object-Oriented code rule during the construction of systemic repository. The hierarchical search based on hereditary algorithm is used to promise the accuracy of the instance match during the mapping from function to structure. By the function of converting conceptual project to detail project, the system accomplishes natural link from Conceptual Design to Detail Design. The comprehensive appraisal system is set up, which combines neural network with restriction.In order to realize the product fast innovation design, the module of produce product scheme fast is set up based on shell storehouse. The designer's experiences are syncretized by this module to shorten the design cycle greatly and improve the design efficiency.Finally, the functions, module setting, technologies and running environment of system are expatiated. With an example of searchlight, the conceptual design process based on knowledge is illustrated in details. With another example of vice jig, the knowledge acquisition is demonstrated by the module of fast project producing. The correctness and rationality of the theory research and implementation of technology is validated.