Study On Quality Optimization Design System Based On The Three Stage Design

The three stage design theory is established in 70's in this century by Taguchi. It is a new method of optimization design. Its basic theory is to use orthogonal arrays, Imitates various interference with the error margin factor, and measures the stability sign of the product quality characteristic by SNR. By these, it will lead designers to finish design of product which the cost is cheap, the quality is best, the function is dependable.But the three stage design has some shortage in using,example design process complexity, statistical analysis and computation workload more heavier, the ability to design their own higher mathematics. To a certain extent, affected the development and application of the theory.In this paper,aim to this deficiencies, make use of visual programming technology and database technology,to make the quality optimization design system based on the three stage design theory.This system is based on the three stage design theory,to construct by the functions of modular, to a certain extent, realize the visualization of design process, the standardization of data management, the automation of analysis and computation.By cue of the system,user can be effectively supported to complete design work,to make designer be liberate from complex design process and computation,and better focus on the details of product design considerations.In this paper,use hybrid programming technology between MATLAB and VB by making use of DLL file,to greatly improve system capacity of the equation solving. Furthermore, general calculation model of the system have been studied,make use of Microsoft(R) Script Control technology to realize mathematical model of input and calculation. Author make use of database technology solve some problem,example the orthogonal design of two table acrossing,design result optimization.And by database technology realize the data management function,including the data entry,the data modification,the data query,to Ensure data consistency, reliability, accuracy. Yet expressions of F distribution and data analysis, programming programme of the F distribution median,to solve significant checkout in the Stat.analyse.In the end, make quality optimization design of pneumatic commutator as example,to introduce function,frame,how to using. Verify the availability and reliability of the system.