A THEORY AND METHOD ON MODERN INTEGRATED DESIGNPROCESS FOR AIRCRAFT DESIGN

摘要

Aircraft design is a complex system engineeringrninvolved in multidisciplinary interactions and multitechnologyrnfields. At present, with the development ofrnaerospace industry and the changing design ideology ofrnaircraft, aircraft design have involved in the traditionalrndisciplines such as aerodynamics, structure, performancernetc and non-conventional disciplines such as reliability,rnsurvivability as well as crossover disciplines such asrneconomics and stability. The less available knowledge inrnearly stage of aircraft design makes the design method andrntheory is extremely important. In this paper, a theory andrnmethod for integrated design process suited for early stagernof aircraft design is proposed which includes three levels:rnvehicle, mission, threat level. The integrated design ofrnaircraft can also be transferred to three levels: disciplines,rnintegrated design, system optimization and includesrnproduct characteristics and process characteristics.rnMeantime, the integrated design theory that includes thernconstituents as life cycle cost (LCC), survivability,rnavailability, mission capability, safety, design risks isrnestablished. The elements involved in the integratedrndesign method are discussed and the metrics of thesernindexes are analyzed.