Applications Of Expert Systems In The Parachute Integrated Design System

In this paper, the development and research of expert system are introduced firstly. Then, based on the analysis of parachute design process, an expert system is used for the uncertain parameter decision and airdrop experiment fault diagnosis in the course of parachute design. The expert system is used in the parachute integrated design system. According to the peculiarities of parachute fault diagnosis, fuzzy relation matrix and production rule representing the knowledge of parachute were proposed for the parachute fault diagnosis expert system. We also put forward an integrated diagnosis reasoning mechanism which combines fuzzy-based reasoning and rule-based reasoning. Finally, according to the process of selecting uncertain parachute design parameters, we present the fuzzy knowledge representation combining production rule with certainty factor and possibility-distribution function. On these bases we establish a fuzzy decision model, using rule-based reasoning and synthesized fuzzy evaluation, for uncertain parameters.