Coordinated System Of Research And Development Of Knowledge-based Computer-aided Aircraft Assembly

This paper mainly studied how to design computer aided assembling coordination charts and calculate coordination accuracy , which adopted object-oriented method, error analyzing ,knowledge disposing technology and human-machine interaction technology. By analyzing the procedure of aircraft assembling coordination, according to the realities of HongDu Aviation Industry Group, the author implemented a knowledge-based computer aided aircraft assembling coordination system. This archetype system adopted modularization framework and had the following functions : automatically designing and editing coordination charts, calculating coordination accuracy and man-hour cost.A coordination project of whole aircraft is established by analyzing each ways and means interchange and coordination. Adopted generative rule based on object class, concluded the rule of fixture choosing, author implemented an open easily extendable and maintainable dynamic repository. Thirteen quintessence models are concluded about the coordination relation between fixture and original data, which are synthesized to develop knowledge-based automatic decision-making system. This system realizes intelligent design of coordination relation and edits coordinate charts easily and efficiently through alternant compilation.Author established the model of calculating coordination accuracy by analyzing coordination accuracy through system error and random error. In this paper, coordination accuracy calculating program is developed based on studying the main way and method of solving coordination problem, which is able to calculate self-motion and distribute tolerance in reason through input alternant information.