J Shanghai Jiaotong Univ Sci

J Shanghai Jiaotong Univ Sci ›› 2016, Vol. 21 ›› Issue (5): 584-587.doi: 10.1007/s12204-016-1766-4

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Non-probabilistic reliability research on multi-variable hydraulic turbine blade model

Pang Y.; Zhang X.; Huang H.; Lai X.   

  1. School of Energy and Power Engineering, Xihua University, Chengdu, 610039, China; Key Laboratory of Fluid and Power Machinery, Xihua University, Chengdu, 610039, China; Institute of Reliability Engineering, University of Electronic Science and Technology of China, Chengdu, 611731, China
  • Published:2025-06-27

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Abstract: Based on the interval mathematics and possibility theory, the variables existing in hydraulic turbine blade are described. Considering the multi-failure mode in turbine blade, multi-variable model is established to meet the actual situation. Thus, non-probabilistic reliability index is presented by comparing with the output range and the given range. © 2016, Shanghai Jiaotong University and Springer-Verlag Berlin Heidelberg.

Key words: fuzzy variable; interval variable; multi-variable model; non-probabilistic reliability; possibility distribution