Research On Digestion-absorption-reinnovation Theory And Method Of Mechanical Products

Our country is now experiencing the history of the transition from “made in China” to “createdin China”. Independent innovation becomes an important driving force in current China. Nationallong-term plan for science and technology development (2006-2020) take Digestion-absorption-reinnovation as an important part of the independent innovation. Digestion-absorption-reinnovationnot only can compensate the disadvantage of our country at the present stage of lack of knowledgeaccumulation and low technology level, but also can enhance our ability of innovation by learningscience and technology from developed countries. But domestic enterprises don’t digest and absorbthe imported technology very well and reinnovation lacks power. The imported technology does notplay its due role. To change the current negative situation, in this paper the author takesstructure-function-knowledge of the products and their parts as the research object, and explores thetheory and method of improving the effect of Digestion-absorption-reinnovation.This paper overall summarizes the problems about how to digest and absorb the technology fromabroad widely, and describes in detail the related researches at home and abroad. On these bases, thispaper puts forward the problems needed to be solved and the main research contents.In order to assimilate and absorb the imported technology completely, the S-F-K modelingmethod based on function ontology has been introduced. To study the imported products from theaspects of structure, function and knowledge enhance the effect of assimilation and absorption. S-F-Kmodel consists of structural model, functional model and knowledge model. The structural modelcombines product structure with product data, which is used to understand what the product is. Thefunctional model gives a functional definition for the product and its parts, which is used tounderstand how to finish the task. The function ontology system which is used for function definitionin the functional model is a key to understand and express the product and parts function. Theknowledge model brings the product design principles and experience together, which is used toexplaim the intent of the product design. The design intention of the original designer can be minedout through the S-F-K model, tacit knowledge of the product can be transformed into explicitexpression at the same time.On the basis of Digestion-absorption, Reinnovation is an effective way to enhance thetechnology competitiveness. In order to ensure the validity of the reinnovation, this paper proposes a method to obtain the innovation and creativity based on the trend theory to determine the direction ofinnovation. By investigating customer demand, market competition, technological development andthe laws of nature, which affect product development trends and innovation, the future trend ofproduct development can be obtained, and the reinnovation point can be got through decisionmethods.Digestion-absorption-beinnovation is normally carried out on the basis of the product prototypes.In order to achieve knowledge transmission and innovation, this paper proposes an innovative designapproach which imitates of biological evolution. Five innovation models which are replacement,increase, decrease, homologous recombination, non-homologous recombination of the productfunctional genomics are established by learning from the evolutionary mechanism of the biologicalgenetic heredity and variation, a reinnovated design plan can be implemented based on these fiveinnovation models.To realize the definition of function ontology of products and their parts, the descriptionontology of function body, functional basis and macro-function are created based on functionontology system in this paper. A computer aided Digestion-absorption-reinnovation platform isdeveloped through integrating the above research contents with software development tools,providing an operational platform for the practical application and enhancing the practicability oftheory research.At last, according to an enterprise’s actual needs, these research results are applid throughimport-digest-absorb-reinventive design of large-scale press electronic servo tri-Axis multi-positiontransfer system. Through the process of digestion, establishment of innovation direction andrealization of innovation design and so on, the reinnovation is started based on imported products andthe scheme of total innovation design is obtained. The effectiveness of design results is verifiedthrough movement simulation, stress analysis and trial-produced prototype. At the same time, thefeasibility and effectiveness of research results in this paper are also verified.