Researching On The Theory Of Technology Evolution Based On TRIZ And The Engineering Application

As global competition becomes more fierce, effective and efficient development of new generations of products is the mighty weapon in the competitive struggle. This thesis concerns how the manufacturers forecast the impending technology and develop the next generations rapidly. Therefore, based on a thorough study on the theory of technology evolution in TRIZ, ten patterns of evolution are presented and twenty-three paths of evolution are summarized. The evolution process of butterfly valve's seal structure is analyzed based on the background of the home-produced butterfly valve's technology. The main researches and contributions are the following:1. Researching on the theory of technology evolution based on TRIZBy analyzing DE's eight patterns of evolution and then combining Petrov's laws of evolution of technology system, the evolution of technology is classified according to the structure, time, function, controllability and idealization from the point of view of practicality. Ten patterns of evolution is summarized, which are simply and applied, and direct the general trend of technology system.2. Researching on the method for the application of theory of technology evolution Patterns of evolution and paths of evolution are the searching paths for solving the problem.According to the summarized patterns of evolution and paths of evolution to search, the solution is obtained. Firstly designers start with problem, and select one or more patterns of evolution related the system, and then select included paths of evolution. Secondly designers determine the state-of-art of product in the selected paths of evolution. Finally referring to the engineering examples, designers decide the new principle of the product, which is the solution of problem. The process forms the conceptual model of products based on theory of technology evolution.3. Developing softwareThe module of patterns of technology evolution in the InventionTool is developed by using VC++ 6.0. It bases on the theory of advanced patterns of evolution and paths of evolutionand includes representative engineering examples. It offers the function of search based on data for operator to find the best solution of the problem rapidly and correctly, which shortens the cycle of product development and reduces the expenses of the product development.4. Analyzing the seal structure of butterfly valveThe evolution process of butterfly valve's seal structure is analyzed in detail by using the theory of technology evolution. Two improved design blueprints are advanced: magnetic field seal butterfly valve and foam plastic butterfly valve, which obtain the ratification of the factory of ShiJiaZhuang valve.