Temat: reliability cost - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Preventive maintenance of multiple components for hydraulic tension systems
Autorzy:: Dui, Hongyan
Zheng, Xiaoqian
Zhao, Qian Qian
Fang, Yining
Powiązania:: https://bibliotekanauki.pl/articles/2038176.pdf
Data publikacji:: 2021
Wydawca:: Polska Akademia Nauk. Polskie Naukowo-Techniczne Towarzystwo Eksploatacyjne PAN
Tematy:: preventive maintenance
reliability
importance measure
maintenance cost
Opis:: Automatically controlled hydraulic tension systems adjust the tension force of a conveyor belt under different working conditions. Failures of an automatically controlled hydraulic tension system influence the performance of conveyor belts. At present, the maintenance of automatically controlled hydraulic tension systems mainly considers the replacement of components when failures occur. Considering the maintenance cost and downtime, it is impossible to repair all the failed components to improve the hydraulic tension system. One of the key problems is selecting the most valuable components for preventive maintenance. In this paper, preventive maintenance for multiple components in a hydraulic tension system is analyzed. An index is proposed to select more reliable preventive maintenance components to replace the original ones. A case study is given to demonstrate the proposed method. When the cost budget increases, there are three different variations in the number of components for selective preventive maintenance (SPM).
Źródło:: Eksploatacja i Niezawodność; 2021, 23, 3; 489-497
1507-2711
Pojawia się w:: Eksploatacja i Niezawodność
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Importance measure-based maintenance strategy considering maintenance costs
Autorzy:: Zhang, Chao
Zhang, Yadong
Dui, Hongyan
Wang, Shaoping
Tomovic, Mileta M.
Powiązania:: https://bibliotekanauki.pl/articles/2057976.pdf
Data publikacji:: 2022
Wydawca:: Polska Akademia Nauk. Polskie Naukowo-Techniczne Towarzystwo Eksploatacyjne PAN
Tematy:: system reliability
importance measure
maintenance cost
preventive maintenance
opportunistic maintenance
Opis:: Maintenance is an important way to ensure the best performance of repairable systems. This paper considers how to reduce system maintenance cost while ensuring consistent system performance. Due to budget constraints, preventive maintenance (PM) can be done on only some of the system components. Also, different selections of components to be maintained can have markedly different effects on system performance. On the basis of the above issues, this paper proposes an importance-based maintenance priority (IBMP) model to guide the selection of PM components. Then the model is extended to find the degree of correlation between two components to be maintained and a joint importance-based maintenance priority (JIBMP) model to guide the selection of opportunistic maintenance (OM) components is proposed. Also, optimization strategies under various conditions are proposed. Finally, a case of 2H2E architecture is used to demonstrate the proposed method. The results show that generators in the 2E layout have the highest maintenance priority, which further explains the difference in the importance of each component in PM.
Źródło:: Eksploatacja i Niezawodność; 2022, 24, 1; 15--24
1507-2711
Pojawia się w:: Eksploatacja i Niezawodność
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Component Maintenance Strategies and Risk Analysis for Random Shock Effects Considering Maintenance Costs
Autorzy:: Zhang, Chao
Zhang, Yadong
Dui, Hongyan
Wang, Shaoping
Tomovic, Mileta M.
Powiązania:: https://bibliotekanauki.pl/articles/24200830.pdf
Data publikacji:: 2023
Wydawca:: Polska Akademia Nauk. Polskie Naukowo-Techniczne Towarzystwo Eksploatacyjne PAN
Tematy:: system reliability
preventive maintenance
importance measure
maintenance cost
random shock
Opis:: Maintenance can improve a system’s reliability in a long operation period or when a component has failed. The reliability modeling method that uses the stochastic process degradation model to describe the system degradation process has been widely used. However, the existing reliability models established using stochastic processes only consider the internal degradation process, and do not fully consider the impact of external random shocks on their reliability modeling. Furthermore, the existing theory of importance does not consider the actual factors of maintenance cost. In this paper, based on the reliability modeling of random processes, the degradation rate under the influence of random shocks is introduced into the time scale function to solve the impact of random shocks on product reliability, and two cost importance measures are proposed to guide the maintenance selection of the components under limited resources in the system. Finally, a subsystem of an aircraft hydraulic system is analyzed to verify the proposed method’s performance.
Źródło:: Eksploatacja i Niezawodność; 2023, 25, 2; art. no. 162011
1507-2711
Pojawia się w:: Eksploatacja i Niezawodność
Dostawca treści:: Biblioteka Nauki

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