10.14489/vkit.2014.04.pp.021-026 |
DOI: 10.14489/vkit.2014.04.pp.021-026 Евельсон Л. И., Хандыго В. Г., Ширяева Л. И., Захаров С. М. Аннотация. Проанализированы основные факторы, влияющие на взаимодействие в системе «колесо–рельс». Предложена концепция информационного моделирования и создания хранилища знаний для данной предметной области. Рассмотрены особенности методики назначения коэффициента уверенности для правил продукционной модели представления знаний о взаимодействии колеса и рельса. Показаны возможности применения технологии экспертных систем для структурирования информации и результатов исследований и эксплуатации системы «колесо–рельс». Ключевые слова: колесо; рельс; взаимодействие пути и подвижного состава; коэффициент уверенности; продукционные модели; трибодинамическое моделирование; информационное моделирование; экспертные системы.
Evelson L. I., Khandygo V. G., Shiryaeva L. I., Zakharov S. М. Abstract. A system approach is used for consideration of interaction between railway car and rail. The system “wheel–rail” is described and investigated. The main reliability and effectiveness characteristics of railway transport depend much upon behavior of the system “wheel–rail”. The main factors influencing on the interaction between wheel and rail had been concerned. A conception of information modeling of the complicated tribodynamical system “wheel–rail” had been proposed. It concerns taking place of quantitative and qualitative parameters simultaneously within the same model. A prototype of some Knowledge Warehouse (KW) based on a production model of knowledge representation had been developed for the considered project field. Some parts of the KW are presented in this paper. An estimation method of Confidence Coefficients (CC) for rules of the production model is proposed. The estimation is done on a base of various information resources analysis. The method had been used for estimation of the CC for the rules concerning factors relating with wear in the system. CC for the complicated rules and for logic chains are calculated threw the CC for simple rules by Byes formulas. C++ program realizing the proposed method had been developed. Creation and controlling of the KW was done by MS Access. A mechanism of logical output had been created for the KW. It can form the logical chains connecting the rules automatically. Usability of Expert Systems (ES) technologies for systematization, ordering and accumulation of knowledge regarding the “wheel–rail” system is demonstrated. Then created KW can be used for development of various ES for solution of concrete problems. For example, the ES estimating various lubrication regimes from view point of wear should be developed. Such ES use various parts of the KW and general output module. Keywords: Wheel; Rail; Interaction of wheel and rail; Confidence coefficient; Production models; Tribodynamical modeling; Information modeling; Expert systems.
РусЛ. И. Евельсон, В. Г. Хандыго, Л. И. Ширяева (Брянская государственная инженерно-технологическая академия)
EngL. I. Evelson, V. G. Khandygo, L. I. Shiryaeva (Bryansk State Academy of Engineering and Technology)
Рус1. Захаров С. М., Погорелов Д. Ю., Симонов В. А. Анализ влияния параметров экипажа и пути на интенсивность износа в системе колесо–рельс (на основе полного факторного эксперимента) // Вестник научно-исследовательского института железнодорожного транспорта. 2010. № 2. С. 31 – 35. Eng1. Zakharov S. M., Pogorelov D. Iu., Simonov V. A. (2010). The influence analysis of the parameters of the crew and the way on the intensity of wear of the wheel-rail (on the basis of full factorial experiment). Vestnik Nauchno-issledovatel'skogo instituta zhe-leznodorozhnogo transporta, (2), pp. 31-35.
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