Wszystkie pola: series systems - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Reliability analysis of multistate series systems with dependent components
Autorzy:: Blokus-Roszkowska, A.
Kołowrocki, K.
Powiązania:: https://bibliotekanauki.pl/articles/2069307.pdf
Data publikacji:: 2015
Wydawca:: Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
Tematy:: reliability
dependent components
local load sharing
ageing components
multistate series system
Opis:: In the paper an approach to the reliability analysis of multistate series systems assuming their components dependency according to the local load sharing rule is presented. There is introduced the local load sharing model of components dependency (of departures from the reliability states subsets) and the reliability function of a multistate series system with dependent components is determined. These results are also presented in case system components have exponential reliability functions and in this case basic reliability characteristics are given.
Źródło:: Journal of Polish Safety and Reliability Association; 2015, 6, 1; 31--36
2084-5316
Pojawia się w:: Journal of Polish Safety and Reliability Association
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: An optimal preventive maintenance policy of parallel-series systems
Autorzy:: Duarte, J. C.
Craveiro, J. T.
Trigo, T. P.
Powiązania:: https://bibliotekanauki.pl/articles/2069373.pdf
Data publikacji:: 2013
Wydawca:: Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
Tematy:: reliability
availability
maintenance optimization
Opis:: This paper presents an algorithm to solve the problem of maintenance management of a two state parallel-series system based on preventive maintenance over the different system components. It is assumed that all components of the system exhibit Weibull hazard function and constant repair rate and that preventive maintenance would bring the system to the as good as new condition. The algorithm calculates the interval of time between preventive maintenance tasks for each component, minimizing the costs, and in such a way that the total downtime, in a certain period of time, does not exceed a predetermined value. It is presented an industrial case study where the algorithm is applied.
Źródło:: Journal of Polish Safety and Reliability Association; 2013, 4, 1; 29--34
2084-5316
Pojawia się w:: Journal of Polish Safety and Reliability Association
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Reliability analysis of two-state consecutive “m out of l: F”-series systems
Autorzy:: Guze, S.
Powiązania:: https://bibliotekanauki.pl/articles/2069564.pdf
Data publikacji:: 2008
Wydawca:: Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
Tematy:: reliability function
series systems
consecutive "m out of k: F" systems
Opis:: A non-stationary approach to reliability analysis of two-state series and consecutive “m out of k: F” systems is presented. Further, the consecutive “m out of k: F”-series system is defined and the recurrent formulae for its reliability function evaluation are proposed. Moreover, the application of the proposed formulae to reliability evaluation of … composed of two-state components is illustrated.
Źródło:: Journal of Polish Safety and Reliability Association; 2008, 1; 175--178
2084-5316
Pojawia się w:: Journal of Polish Safety and Reliability Association
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: The model of non-renewal reliability systems with dependent time lengths of components
Autorzy:: Grabski, F.
Załęska-Fornal, A.
Powiązania:: https://bibliotekanauki.pl/articles/2069624.pdf
Data publikacji:: 2007
Wydawca:: Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
Tematy:: reliability
dependent components
series systems
parallel systems
Opis:: The models of the non-renewal reliability systems with dependent times to failure of components are presented. The dependence arises from some common environmental stresses and shocks. It is assumed that the failure occurs only because of two independent sources common for two neighbour components. The reliability function of series and parallel systems with components depending on common sources are computed. The reliability functions of the systems with dependent and independent life lengths of components are compared.
Źródło:: Journal of Polish Safety and Reliability Association; 2007, 1; 151--156
2084-5316
Pojawia się w:: Journal of Polish Safety and Reliability Association
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Reliability analysis of two-state series-consecutive “m out of k: F” systems
Autorzy:: Guze, S.
Powiązania:: https://bibliotekanauki.pl/articles/2069582.pdf
Data publikacji:: 2008
Wydawca:: Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
Tematy:: reliability function
series systems
consecutive "m out of k: F" systems
Opis:: A non-stationary approach to reliability analysis of two-state series and consecutive “m out of k: F” systems is presented. Further, the series-consecutive “m out of k: F” system is defined and the recurrent formulae for its reliability function evaluation are proposed. Moreover, the application of the proposed formulae to reliability evaluation of the radar system composed of two-state components is illustrated.
Źródło:: Journal of Polish Safety and Reliability Association; 2008, 1; 169--174
2084-5316
Pojawia się w:: Journal of Polish Safety and Reliability Association
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Models of reliability and availability improvement of series and parallel systems related to their operation processes
Autorzy:: Kwiatuszewska-Sarnecka, B.
Powiązania:: https://bibliotekanauki.pl/articles/2069663.pdf
Data publikacji:: 2009
Wydawca:: Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
Tematy:: multi-state systems
reliability improvement
availability improvement
Opis:: Integrated general models of approximate approaches of complex multi-state series and parallel systems, linking their reliability and availability improvement models and their operation processes models caused changing reliability and safety structures and components reliability characteristics in different operations states, are constructed. These joint models are applied to determining improved reliability and availability characteristics of the considered multi-state series and parallel systems related to their varying in time operation processes. The conditional reliability characteristics of the multi-state systems with hot, cold single reservation of component and the conditional reliability characteristics of the multi-state systems with reduced rate of departure by a factor of system components are defined.
Źródło:: Journal of Polish Safety and Reliability Association; 2009, 2; 277--286
2084-5316
Pojawia się w:: Journal of Polish Safety and Reliability Association
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Safety of multistate series-„k out of n” systems
Autorzy:: Milczek, B.
Powiązania:: https://bibliotekanauki.pl/articles/2068728.pdf
Data publikacji:: 2018
Wydawca:: Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
Tematy:: large systems
safety of large systems
asymptotic approach
limit reliability function
Opis:: The paper is concerned with mathematical methods in asymptotic approach to systems safety and reliability analysis. In the safety investigation of large-scale systems, the problem of the complexity of their safety functions arises. This problem may be approximately solved by assuming that the number of system components tends to infinity and finding the limit safety function of the system. The article is based on the results of the author’s solutions for series-“m out of kn” given in [4] – [6].
Źródło:: Journal of Polish Safety and Reliability Association; 2018, 9, 3; 121--126
2084-5316
Pojawia się w:: Journal of Polish Safety and Reliability Association
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Safety of some homogeneous series-„k out of n” systems
Autorzy:: Milczek, B.
Powiązania:: https://bibliotekanauki.pl/articles/2068738.pdf
Data publikacji:: 2018
Wydawca:: Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
Tematy:: large systems
safety of large systems
asymptotic approach
limit reliability function
Opis:: In the reliability investigation of large-scale systems, the problem of the complexity of their safety functions arises. This problem may be approximately solved by assuming that the number of system components tends to infinity and finding the limit safety function of the system. The problem of finding the limit reliability function of large-scale systems is well known for basic two-state systems (Gnedenko for series and parallel systems [1], Smirnov for “k out of n” systems [8]). The problem of possible limit reliability functions for series-parallel and parallel-series is also well recognized [3]. The solution for two-state series-“k out of n” systems, while k/n→0 and also while k/n→1 can be found in [5] and [6]. The paper is concerned with mathematical methods in multistate asymptotic approach to series-“k out of n” systems safety and shows the methods of establishing its possible limit safety functions, while k/n→ λ, 0˂ λ˂ 1.
Źródło:: Journal of Polish Safety and Reliability Association; 2018, 9, 3; 115--120
2084-5316
Pojawia się w:: Journal of Polish Safety and Reliability Association
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: On asymptotic approach to reliability improvement of multi-state systems with components quantitative and qualitative redundancy : series and parallel systems
Autorzy:: Kwiatuszewska-Sarnecka, B.
Powiązania:: https://bibliotekanauki.pl/articles/2069593.pdf
Data publikacji:: 2007
Wydawca:: Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
Opis:: The paper is composed of two parts, in this part after introducing the multi-state and the asymptotic approaches to system reliability evaluation the multi-state homogeneous series and parallel systems with reserve components are defined and their multi-state limit reliability functions are determined. In order to improve of the reliability of these systems the following methods are used: (i) a warm duplication of components, (ii) a cold duplication of components, (iii) a mixed duplication of components, (iv) improving the reliability of components by reducing their failure rate. Next, the effects of the systems’ reliability different improvements are compared.
Źródło:: Journal of Polish Safety and Reliability Association; 2007, 2; 255--263
2084-5316
Pojawia się w:: Journal of Polish Safety and Reliability Association
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Examples of series-“m out of k” systems and their limit reliability functions
Autorzy:: Milczek, B.
Powiązania:: https://bibliotekanauki.pl/articles/2069677.pdf
Data publikacji:: 2009
Wydawca:: Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
Tematy:: reliability
large system
asymptotic approach
limit reliability function
Opis:: The paper is concerned with mathematical methods in asymptotic approach to systems reliability analysis. The complexity of the reliability investigation of large-scale systems is proposed to be approximately solved by assuming that the number of system components tends to infinity and finding the limit reliability function of the system. Some general results in the form of auxiliary theorems and examples of limit reliability functions of homogeneous and regular series-“m out of k” systems with exponential and Weibull reliability functions of system components are presented.
Źródło:: Journal of Polish Safety and Reliability Association; 2009, 2; 309--316
2084-5316
Pojawia się w:: Journal of Polish Safety and Reliability Association
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 11.

Tytuł:: A new method for computing the reliability of composite systems
Autorzy:: Karbasian, M.
Mahdavi, M.
Powiązania:: https://bibliotekanauki.pl/articles/2069599.pdf
Data publikacji:: 2007
Wydawca:: Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
Tematy:: reliability
extreme value
parallel structures
series model
life distribution
Opis:: This paper tries to represent a new method for computing the reliability of a system, which is arranged in series or parallel model. In this method we estimate life distribution function of whole system using the asymptotic Extreme Value (EV) distribution of Type I, or Gumbel theory. We use EV distribution in minimal mode, for estimate the life distribution function of series system and maximal mode for parallel system. All parameters also are estimated by Moments method. Reliability function and failure (hazard) rate and p-th percentile point of each function are determined. Other important indexes such as Mean Time to Failure (MTTF), Mean Time to repair (MTTR), for non-repairable and renewal systems in both of series and parallel structures will be computed.
Źródło:: Journal of Polish Safety and Reliability Association; 2007, 1; 199--203
2084-5316
Pojawia się w:: Journal of Polish Safety and Reliability Association
Dostawca treści:: Biblioteka Nauki

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