Abstract:

The integrated design of reliability, maintainability and supportability (RMS) is one of key technical challenges and research hot spots in the engineering and academic field at home and abroad. Although achievements have been attained in the individual engineering of reliability, maintainability and supportability, the problem of strongcoupling between RMS and control of design knowledge has not been resolved up to now. The strongcoupling between RMS characteristic parameters and their logic relations results in the intersectant design processes and knowledge of RMS, which affects the real integration of RMS data and design tools. In this paper one research solution of RMS integrated design is presented. Firstly, the layered weighted digraphs method is introduced to model and decouple this strongcoupling relationship scientifically and impersonally because the graph theory has the strict foundation of mathematics. Then, the knowledge flow theory of library and management science is introduced to lead the scientific flow of design knowledge between the RMS coupling fields. Finally, the fuzzy rough sets theory is adopted to study the problems of uncertain knowledge and case data missing under coupling RMS case. This research solution can provide one new idea and solution for the development of integrated design theory of RMS.