Balancing reliability and maintenance cost rate of multi-state components with fault interval omission

• Autorzy: Dong Wenjie , Liu Sifeng , Yang Xiaoyu , Wang Huan , Fang Zhigeng

Identyfikatory

DOI

10.17531/ein.2019.1.5

Warianty tytułu

PL

Równoważenie wskaźników niezawodności i kosztów utrzymania elementów wielostanowych z pominięciem przedziału wystąpienia uszkodzenia

• Języki publikacji: EN

Abstrakty

EN

For the repairable multi-state component, reliability indexes are analyzed based on a homogenous Continuous Time Markov Chain (CTMC). If the component can work well when its repair time is sufficiently short, a threshold value for maintenance is introduced. When the fault interval is less than threshold time, the fault effect is considered neglected. In this paper, comparisons of availability show differences of the new model and the original model with or without fault interval omission. In addition, balancing the maintenance cost and lifetime of multi-state components is an important issue when threshold values are considered. Both constants and non-negative random variables are modeled respectively. Finally, numerical examples are presented to illustrate the results obtained in this paper.

PL

W przypadku naprawialnych elementów wielostanowych, wskaźniki niezawodności analizuje się w oparciu o łańcuch Markowa z czasem ciągłym. Jeśli element może działać prawidłowo, mimo uszkodzenia, dzięki wystarczająco krótkiemu czasowi naprawy, wprowadza się próg czasowy dla konserwacji. Gdy przedział czasu, w którym następuje uszkodzenie jest krótszy niż próg czasowy dla działań konserwacyjnych, wpływ uszkodzenia uważa się za nieistotny. Przeprowadzone w niniejszym artykule porównania gotowości wykazały różnice między nowym modelem a modelem oryginalnym z pominięciem lub bez pominięcia przedziału wystąpienia uszkodzenia. Ponadto, przy rozważaniu wartości progowych, ważną kwestią jest równoważenie kosztów utrzymania i żywotności elementów wielostanowych. W pracy próg wystąpienia uszkodzenia zamodelowano, odpowiednio, zarówno jako wartość stałą jak i nieujemną zmienną losową. Na koniec przedstawiono przykłady ilustrujące wyniki przedstawionych badań.

Słowa kluczowe

EN

multi-state systems (MSSs); fault effect omission; stochastic process; repairable model; maintenance cost rate

PL

systemy wielostanowe (MSS); pominięcie wpływu uszkodzenia; proces stochastyczny; model naprawialny; polityka utrzymania ruchu

• Wydawca: Polskie Naukowo-Techniczne Towarzystwo Eksploatacyjne
• Czasopismo: Eksploatacja i Niezawodność
• Rocznik: 2019
• Tom: Vol. 21, no. 1
• Strony: 37--45
• Opis fizyczny: Bibliogr. 30 poz., rys.

Twórcy

autor

Dong Wenjie

• College of Economics and Management Nanjing University of Aeronautics and Astronautics Nanjing 211106, Jiangsu, PR China

autor

Liu Sifeng

• College of Economics and Management Nanjing University of Aeronautics and Astronautics Nanjing 211106, Jiangsu, PR China

autor

Yang Xiaoyu

• College of Economics and Management Nanjing University of Aeronautics and Astronautics Nanjing 211106, Jiangsu, PR China

autor

Wang Huan

• College of Economics and Management Nanjing University of Aeronautics and Astronautics Nanjing 211106, Jiangsu, PR China

autor

Fang Zhigeng

• College of Economics and Management Nanjing University of Aeronautics and Astronautics Nanjing 211106, Jiangsu, PR China

Bibliografia

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Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).