Research Of The Key Technology Of Developing Tool In The Expert System Of Mechanical Design

Because mechanical design has its self-complexity and the multi-answer, and building the design of expert system also possesses its difficulties, the developing tool building the expert system of mechanical design is developed very slowly. But to improve the quality and efficiency of mechanical design, building the expert system of mechanical design is still becoming the crucial topic in the mechanical design and manufacture. Along with the rapid development of some technology such as computer, little wave theory, nervous network and hereditary evolution, the developing tool of expert system based on these multi-subject theory is also developing rapidly, and building this developing tool also becomes the inevitable tendency in the future mechanical industry.This paper has analyzed the domestic and international research status and the strongpoints and shortcomings of the developing tool in mechanical design, and has discussed the basic performance parameter of it. On this foundation, the essential technology about the developing tool is deeply studied, including of carrying out the data pretreatment of various method on the knowledge database, and proposing to take the expression method of knowledge relations as representative's many kinds of knowledge modes and the expression ways, and proposing to take the auto-adapted nerve network's method and the belt sector value production pattern as representative's many kinds of inference method and the control strategy, and giving the automatic gained method of knowledge by the nerve network and the rough sets theory and on-line collection and the fuzzy classification and so on, furthermore, several explanation mechanism is provided,and the whole interface design problem of the developing tool is studied.When building the developing tool, the system adopted the access way of sparse matrix from to raise the systematical capacity and parallel handling technology to raise the operational time complex degree and the nervous network technology that has good information maintenance and adaptability to raise the systematic robustness.The study of this key technology has important theoretical significance to build the practical expert system of mechanical design. It also has latent economic benefits and the wide application prospect for enhancing mechanical design quality and efficiency.