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Reliability engineering & system safety v.160, 2017년, pp.101 - 113   SCI SCIE SCOPUS
본 등재정보는 저널의 등재정보를 참고하여 보여주는 베타서비스로 정확한 논문의 등재여부는 등재기관에 확인하시기 바랍니다.

Sensor-based calibrations to improve reliability of systems subject to multiple dependent competing failure processes

Kong, Dejing (School of Management and Economics, Beijing Institute of Technology, Beijing 100081, China ) ; Qin, Chengwei (Department of Mathematics and Statistics, McMaster University, Hamilton, Ontario, Canada L8S 4K1 ) ; He, Yong (Department of Statistics, Fudan University, Shanghai 200433, China ) ; Cui, Lirong (School of Management and Economics, Beijing Institute of Technology, Beijing 100081, China ) ;
  • 초록  

    Abstract Reliability models with sensor-based calibrations are presented for systems or devices subject to dependent competing failure processes of soft failure due to degradation process and hard failure according to shock process. Shock magnitudes to indicate the hard failure are considered in terms of two patterns, inter-arrival times and arrival times. The soft failure is indicated by overall degradation measurement comprising of internal continuous degradation measurement and additional degradation damage caused by the shock process. By sensors, instant calibrations are carried out to rejuvenate the additional degradation damage. Then explicit reliability expressions are derived for the dependent competing failure system whose internal degradation measurement is described by the general degradation path model. And a simulation procedure is proposed to model the internal continuous degradation measurement indicated the Wiener process. Meanwhile, the usefulness of the proposed models is demonstrated by the numerical example. The results are illustrated that the proposed model with the instant calibrations are available to improve system reliability and make the system to operate in a higher safety in applications. Highlights A system with calibrations experiences dependent competing failure processes. Shocks’ magnitudes are associated with inter-arrival times and arrival times. Instant calibrations are executed to rejuvenate the external sudden damage. Overall degradation comprises of internal and external degradation measurement. Explicit reliability expressions and simulations are given for models.


  • 주제어

    Dependent competing failure .   Degradation .   Poisson process .   Calibrations .   Inter-arrival time .   Arrival time .   Simulations.  

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