To solve the consistency problem of knowledge representation of the Bayesian diagnostic network
the mapping framework between the failure modes and the physical components are established
and a kind of hierarchical structural model of the multiple failures is proposed combined with the structural decomposition of the complex system. Following the polychromatic sets theory
the rock-bottom frame of this model is described formally
which facilitates constructing the computational expression and leading to a more convenient operation. Bayesian diagnostic network(BDN)is generated automatically via the iterative search process on the reasoning matrices of the polychromatic sets
and the specific procedure of the reasoning is presented. A case study for a steam turbine is reported to illustrate the validity of the proposed method
which is helpful to the standardization of the DBN knowledge representation and promotes the automation of the BDN construction process.
关键词
Keywords
references
Hu Zhaoyong. Bayesian diagnostic network: a powerful model for representation and reasoning of engineering diagnostic knowledge [J]. International Journal of Plant Engineering and Management, 2005, 10(1): 28-35.
Xiang Y, Olesen K G, Jensen F V. Practical issues in modeling large diagnostic systems with multiply sectioned Bayesian networks [J]. IJPRAI, 2000, 14(1): 59-72.
Koller D, Pfeffer A. Object-oriented Bayesian networks [C]∥ Proceedings of the 13th Annual Conference on Uncertainty in Artificial Intelligence. San Mateo, CA:Morgan Kaufmann, 1997: 302-313.
Przytula K W. An efficient framework for the conversion of fault trees to diagnostic Bayesian network models [C]∥ Proceedings of 2006 IEEE Aerospace Conference. Piscataway, USA:IEEE Press,2006: 1-14.
Li Zongbing, Xu Lida. Polychromatic sets and its application in simulating complex objects and systems [J]. Computers and Operations Research, 2003, 30(6): 851-860.
Xu Lida, Li Zongbing. A polychromatic sets approach to conceptual design of machine tools [J]. International Journal of Production Research, 2005, 43(12): 2397-2421.
Zhao Tingdi, Su Tiejun. Intelligent FMEA based on model FIORN [C]∥ Proceedings of Annual Reliability and Maintainability Symposium. New York:IEEE Press, 2004: 386-390.
Sun Yong, Ma Lin. An analytical model for interactive failures [J]. Reliability Engineering and System Safety, 2006, 91(5): 495-504.