Analysis of maintenance models’ parameters estimation for technical systems with delay time

Jodejko-Pietruczuk, A.; Werbińska-Wojciechowska, S.

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Tytuł artykułu

Analysis of maintenance models’ parameters estimation for technical systems with delay time

Autorzy

Jodejko-Pietruczuk A. , Werbińska-Wojciechowska S.

Treść / Zawartość

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Warianty tytułu

Analiza parametrów modeli obsługiwania systemów technicznych z opóźnieniem czasowym

Języki publikacji

EN PL

Abstrakty

In the article authors are interested in BIP performance for three-element system (“k-out-of-n” reliability structure), the maintenance policy which is one of most commonly used in practice. The BIP may be implemented in technical systems when some information about reliability characteristics is known. The basic reliability parameters that have to be specified in such systems are: an estimation of system components’ time to failure and some delay time characteristics. In order to determine the effects of possible errors and to specify sufficient accuracy of the estimation, the analysis of system costs was done for various values of the expected delay time, assuming three different probability distributions of the delay time (Weibull, Uniform, and Normal). The modelling process was based on the use of GNU Octave software. Test analysis of delay time parameter, assuming different types of probability distributions is the base to conclude: if the form of the distribution has any meaning for economic results of the system, and what kind of consequences may result from improper mean delay time estimation E(h).

W pracy analizie poddano system trzyelementowy (struktura niezawodnościowa progowa), którego procesy obsługiwania realizowane są zgodnie z założeniami Polityki Przeglądów Blokowych (BIP). Strategia ta może być zastosowana w procesie utrzymania systemów technicznych, gdy znane są pewne jego charakterystyki niezawodnościowe, bazujące m.in. na informacjach o czasach pomiędzy uszkodzeniami elementów systemu. W badaniach skupiono się na trzech rozkładach prawdopodobieństwa tej zmiennej losowej (normalny, Weibull, prostokątny). Model symulacyjny opracowano przy wykorzystaniu oprogramowania GNU Octave. Analiza okresu opóźnienia czasowego, przy założeniu różnych postaci rozkładów prawdopodobieństwa tej zmiennej losowej, pozwoliła na ocenę: czy znajomość typu rozkładu prawdopodobieństwa zmiennej losowej h ma istotne znaczenie dla wyników ekonomicznych funkcjonowania systemu, oraz jakie konsekwencje mogą wystąpić w wyniku niewłaściwej estymacji wartości średniej E(h).

Słowa kluczowe

delay time maintenance model parameters estimation methods

opóźnienie czasowe model obsługiwania metody estymacji parametrów

Wydawca

Polskie Naukowo-Techniczne Towarzystwo Eksploatacyjne

Czasopismo

Eksploatacja i Niezawodność

Rocznik

2014

Tom

Vol. 16, no. 2

Strony

288--294

Opis fizyczny

Bibliogr. 32 poz., rys., tab.

Twórcy

autor

Jodejko-Pietruczuk A.

Mechanical Engineering Faculty Wrocław University of Technology Wybrzeże Wyspiańskiego 27, 50-370, Wrocław, Poland

autor

Werbińska-Wojciechowska S.

sylwia.werbinska@pwr.wroc.pl

Mechanical Engineering Faculty Wrocław University of Technology Wybrzeże Wyspiańskiego 27, 50-370, Wrocław, Poland

Bibliografia

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32. Werbińska-Wojciechowska S. Problems of logistics systems modelling with the use of DTA approach. Logistics and Transport 20

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Bibliografia

Identyfikator YADDA

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