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Wyszukujesz frazę "Reliability" wg kryterium: Wszystkie pola


Tytuł:
Operation and reliability optimization of complex technical systems
Autorzy:
Kołowrocki, K.
Soszyńska-Budny, J.
Powiązania:
https://bibliotekanauki.pl/articles/2069477.pdf
Data publikacji:
2014
Wydawca:
Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
Tematy:
reliability
multistate system
ageing
operation process
optimization
exemplary application
Opis:
Modelling and prediction of the operation and reliability of technical multistate ageing systems related to their operation processes called complex systems are briefly presented and applied to prediction of the operation processes and reliability characteristics of an exemplary complex non-homogeneous system composed of a series-parallel and a series-“m out of l” subsystems linked in series, changing its reliability structure and its components reliability parameters at variable operation conditions. Further, the linear programming is proposed to the operation and reliability optimization of complex technical systems operating at variable operation conditions. The method consists in determining the optimal values of limit transient probabilities at the system operation states that maximize the system lifetimes in the reliability state subsets. The proposed method is practically applied to the operation and reliability optimization of the considered exemplary complex system.
Źródło:
Journal of Polish Safety and Reliability Association; 2014, 5, 1; 91--106
2084-5316
Pojawia się w:
Journal of Polish Safety and Reliability Association
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Reliability and risk evaluation of a container gantry crane at variable operation conditions
Autorzy:
Soszyńska-Budny, J.
Powiązania:
https://bibliotekanauki.pl/articles/2069538.pdf
Data publikacji:
2011
Wydawca:
Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
Tematy:
reliability function
risk function
system operation processes
Opis:
The joint model of the system operation process and the system multi-state reliability is applied to the reliability and risk evaluation of the container gantry crane. The container gantry crane is described and its operation process unknown parameters are identified on the basis of real statistical data. The mean values of the container gantry crane operation process unconditional sojourn times in particular operation states are found and applied to determining this process transient probabilities in these states. The container gantry crane different reliability structures in various its operation states are fixed and their conditional reliability functions on the basis of data coming from experts are approximately determined. Finally, after applying earlier estimated transient probabilities and system conditional reliability functions in particular operation states the unconditional reliability function, the mean values and standard deviations of the container gantry crane lifetimes in particular reliability states, risk function and the moment when the risk exceeds a critical value are found. he joint model of the system operation process and the system multi-state reliability is applied to the reliability and risk evaluation of the container gantry crane. The container gantry crane is described and its operation process unknown parameters are identified on the basis of real statistical data. The mean values of the container gantry crane operation process unconditional sojourn times in particular operation states are found and applied to determining this process transient probabilities in these states. The container gantry crane different reliability structures in various its operation states are fixed and their conditional reliability functions on the basis of data coming from experts are approximately determined. Finally, after applying earlier estimated transient probabilities and system conditional reliability functions in particular operation states the unconditional reliability function, the mean values and standard deviations of the container gantry crane lifetimes in particular reliability states, risk function and the moment when the risk exceeds a critical value are found.
Źródło:
Journal of Polish Safety and Reliability Association; 2011, 2, 2; 453--464
2084-5316
Pojawia się w:
Journal of Polish Safety and Reliability Association
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Reliability assessment of an exemplary system operating at variable conditions
Autorzy:
Kołowrocki, K.
Kuligowska, E.
Soszyńska-Budny, J.
Powiązania:
https://bibliotekanauki.pl/articles/2069201.pdf
Data publikacji:
2015
Wydawca:
Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
Tematy:
system reliability
system operation process
analytical approach
Opis:
The reliability analysis of a multistate complex system subjected to varying in time its operation process is performed. A semi-Markov process is applied to construct the multistate model of the system operation process and its main characteristics are determined. Analytical linking of the system operation process model with the system multistate reliability model is proposed to get a general reliability model of the complex system operating at varying in time operation conditions and to find its reliability characteristics. The constructed integrated general model of a complex multistate system reliability, linking its reliability model and its operation process model and considering variable at different operation states its reliability structure and its components reliability parameters is applied to the reliability evaluation of an exemplary system.
Źródło:
Journal of Polish Safety and Reliability Association; 2015, 6, 1; 129--137
2084-5316
Pojawia się w:
Journal of Polish Safety and Reliability Association
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Reliability prediction and optimization of complex technical systems with application in port transport
Autorzy:
Kołowrocki, K.
Soszyńska-Budny, J.
Powiązania:
https://bibliotekanauki.pl/articles/2069474.pdf
Data publikacji:
2012
Wydawca:
Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
Tematy:
complex system
reliability
operation process
prediction
optimization
Opis:
There are presented the methods of the reliability prediction and optimization of complex technical systems related to their operation processes. The general model of the reliability of complex technical systems operating at variable operation conditions linking the semi-Markov modeling of their operation processes with the multistate approach to their reliability analysis and the linear programming are applied in maritime industry to the reliability and risk prediction and optimization of the container gantry crane.
Źródło:
Journal of Polish Safety and Reliability Association; 2012, 3, 2; 263--278
2084-5316
Pojawia się w:
Journal of Polish Safety and Reliability Association
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Reliability of large port grain transportation system
Autorzy:
Kołowrocki, K.
Soszyńska-Budny, J.
Torbicki, M.
Powiązania:
https://bibliotekanauki.pl/articles/2069510.pdf
Data publikacji:
2014
Wydawca:
Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
Tematy:
reliability
multistate system
ageing
large system
operation process
grain transportation system
Opis:
The combination of the results on the reliability of complex multi-state systems related to their operation processes and the results concerning the limit reliability functions of the multistate systems is proposed, to obtain the results on the asymptotic approach to the evaluation of the large complex multi-state systems reliability at the variable operation conditions. The asymptotic approach to the large complex system reliability evaluation and the large complex system limit reliability function are defined. Limit reliability functions of selected large complex systems composed of components having Weibull reliability functions are fixed. The way of using this results is illustrated by their application to the evaluation of reliability characteristics of the large complex port grain transportation subsystem composed of three large multistate non-homogeneous series systems and changing its reliability structure and its components reliability parameters at variable operation conditions.
Źródło:
Journal of Polish Safety and Reliability Association; 2014, 5, 2; 77--86
2084-5316
Pojawia się w:
Journal of Polish Safety and Reliability Association
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Testing the integrated package of tools supporting decision making on identification, prediction and optimization of complex technical systems operation, reliability and safety. Part 4. IS&RDSS Application – Exemplary system operation and reliability optimization
Autorzy:
Kołowrocki, K.
Soszyńska-Budny, J.
Xie, M.
Powiązania:
https://bibliotekanauki.pl/articles/2069544.pdf
Data publikacji:
2011
Wydawca:
Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
Tematy:
reliability
operation process
optimization
Opis:
There is presented the IS&RDSS application to the operation and reliability of an exemplary complex technical system optimization. There are determined, the optimal limit transient probabilities of the exemplary system operation process at the particular operation states maximizing the system lifetime in the reliability states not worse than the critical reliability state and its optimal sojourn times at the particular operation states. There are evaluated the exemplary system optimal unconditional multistate reliability function, the optimal expected values and the standard deviations of its unconditional lifetimes in the reliability state subsets and the optimal mean values of its lifetimes in the particular reliability states are. Moreover, in the case when the system is repairable, its optimal renewal and availability characteristics are found.
Źródło:
Journal of Polish Safety and Reliability Association; 2011, 2, 2; 399--406
2084-5316
Pojawia się w:
Journal of Polish Safety and Reliability Association
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Testing the integrated package of tools supporting decision making on identification, prediction and optimization of complex technical systems operation, reliability and safety. Part 3. IS&RDSS Application – Exemplary system operation and reliability characteristics prediction
Autorzy:
Kołowrocki, K.
Soszyńska-Budny, J.
Ng, K. M.
Powiązania:
https://bibliotekanauki.pl/articles/2069505.pdf
Data publikacji:
2011
Wydawca:
Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
Tematy:
reliability
operation process
prediction
Opis:
There is presented the IS&RDSS application to the operation and reliability of an exemplary complex technical system prediction. There are performed, the unconditional mean sojourn times and the limit transient probabilities of the exemplary system operation process at the particular operation states evaluations. The evaluations of the exemplary system unconditional multistate reliability function, the expected values and the standard deviations of its unconditional lifetimes in the reliability state subsets and the mean values of its lifetimes in the particular reliability states are performed as well. Moreover, in the case when the system is repairable, its renewal and availability characteristics are estimated.
Źródło:
Journal of Polish Safety and Reliability Association; 2011, 2, 2; 387--398
2084-5316
Pojawia się w:
Journal of Polish Safety and Reliability Association
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Testing the integrated package of tools supporting decision making on identification, prediction and optimization of complex technical systems operation, reliability and safety. Part 5. IS&RDSS Application – Improved exemplary system operation and reliability characteristics prediction
Autorzy:
Kołowrocki, K.
Soszyńska-Budny, J.
Xie, M.
Powiązania:
https://bibliotekanauki.pl/articles/2069537.pdf
Data publikacji:
2011
Wydawca:
Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
Tematy:
complex system
reliability
improve
Opis:
There is presented the IS&RDSS application to the reliability of the improved exemplary complex technical system prediction. There are considered three ways of the exemplary system reliability improvement, a hot single reservation of its components, a cold single reservation of its components and replacing its components by the improved components with reduced intensities of departure from the reliability state subsets. The evaluations of this ways improved exemplary system unconditional multistate reliability function, the expected values and the standard deviations of its unconditional lifetimes in the reliability state subsets and the mean values of its lifetimes in the particular reliability states are performed. Moreover, in the case when the improved system is repairable, its renewal and availability characteristics are estimated.
Źródło:
Journal of Polish Safety and Reliability Association; 2011, 2, 2; 407--434
2084-5316
Pojawia się w:
Journal of Polish Safety and Reliability Association
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Testing the integrated package of tools supporting decision making on identification, prediction and optimization of complex technical systems operation, reliability and safety. Part 1. Integrated Safety and Reliability Decision Support System – IS&RDSS
Autorzy:
Kołowrocki, K.
Soszyńska-Budny, J.
Ng, K. M.
Powiązania:
https://bibliotekanauki.pl/articles/2069515.pdf
Data publikacji:
2011
Wydawca:
Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
Tematy:
reliability
safety
operation processes
availability
optimization
Opis:
The paper is composed of six parts and presents the main practical tool created in the scope of the PolandSingapore Joint Research Project, the Integrated Safety and Reliability Decision Support System - IS&RDSS. In the paper first part, there are presented the procedure of the IS&RDSS usage in the form of detailed and clear scheme-algorithm and the list of the project final reports and these reports supporting bibliography. In the remaining paper parts, there is presented the IS&RDSS application to the reliability analysis of an exemplary complex technical system.
Źródło:
Journal of Polish Safety and Reliability Association; 2011, 2, 2; 361--372
2084-5316
Pojawia się w:
Journal of Polish Safety and Reliability Association
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Reliability and risk improvement with components quantitative and qualitative redundancy of bulk cargo transporter
Autorzy:
Kołowrocki, K.
Kwiatuszewska-Sarnecka, B.
Soszyńska-Budny, J.
Powiązania:
https://bibliotekanauki.pl/articles/2069063.pdf
Data publikacji:
2015
Wydawca:
Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
Tematy:
reliability function
risk function
operation process
redundancy
Opis:
The joint general model of reliability of complex technical systems at variable operation conditions linking a semi-Markov modelling of the system operation processes with a multi-state approach to system reliability analysis and reliability improvement are applied in maritime transport to reliability and risk optimization of a bulk cargo transportation system.
Źródło:
Journal of Polish Safety and Reliability Association; 2015, 6, 2; 1--12
2084-5316
Pojawia się w:
Journal of Polish Safety and Reliability Association
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Testing the integrated package of tools supporting decision making on identification, prediction and optimization of complex technical systems operation, reliability and safety. Part 2. IS&RDSS Application – Exemplary system operation and reliability unknown parameters identification
Autorzy:
Kołowrocki, K.
Soszyńska-Budny, J.
Ng, K. M.
Powiązania:
https://bibliotekanauki.pl/articles/2069370.pdf
Data publikacji:
2011
Wydawca:
Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
Tematy:
reliability function
operation processes
estimating
Opis:
There is presented the IS&RDSS application to the operation and reliability models of an exemplary complex technical system unknown parameters identification. There are performed in the paper, the exemplary system operation and reliability analysis and modelling. The identification of the probabilities of transitions this system operation process between the operation states and the conditional mean values of this process sojourn times in the particular operation states because of the lack of statistical data is performed throw the arbitrary fixing their values. assumption. The evaluation of the system components unknown intensities of departures the reliability state subsets and the identification of the exponential forms of their multistate reliability functions on the arbitrarily fixed statistical data coming from the system components states changing processes are performed as well.
Źródło:
Journal of Polish Safety and Reliability Association; 2011, 2, 2; 373--386
2084-5316
Pojawia się w:
Journal of Polish Safety and Reliability Association
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Reliability of complex system under operation process influence : Monte Carlo simulation Approach
Autorzy:
Kołowrocki, K.
Kuligowska, E.
Soszyńska-Budny, J.
Powiązania:
https://bibliotekanauki.pl/articles/2069246.pdf
Data publikacji:
2015
Wydawca:
Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
Tematy:
multistate system
operation process
complex system
reliability
Monte Carlo simulation method
Opis:
The paper presents Monte Carlo simulation method applied to the reliability evaluation of a multistate system subjected to a variable multistate operation process. The system operation process model is linked with the system reliability model and proposed to get a general reliability model of the complex system operating at varying in time operation conditions and to find its reliability characteristics. The Monte Carlo simulation algorithm based on the integrated general model of a complex multistate system reliability, linking its reliability model and its operation process model and considering variable at different operation states its reliability structure and its components reliability parameters is applied to the reliability evaluation of port grain transportation system. Next the results of this simulation method application are illustrated and compared with the results obtained by the analytical method.
Źródło:
Journal of Polish Safety and Reliability Association; 2015, 6, 1; 145--154
2084-5316
Pojawia się w:
Journal of Polish Safety and Reliability Association
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Monte Carlo simulation application to reliability assessment of an exemplary system operating at variable conditions
Autorzy:
Kołowrocki, K.
Kuligowska, E.
Soszyńska-Budny, J.
Powiązania:
https://bibliotekanauki.pl/articles/2069213.pdf
Data publikacji:
2015
Wydawca:
Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
Tematy:
system reliability
system operation process
Monte Carlo simulation approach
Opis:
A semi-Markov process is applied to construct the multistate model of the system operation process and its main characteristics are determined. Analytical linking of the system operation process model with the system multistate reliability model is proposed to get a general reliability model of the complex system operating at varying in time operation conditions and to find its reliability characteristics. The Monte Carlo simulation algorithm based on the integrated general model of a complex multistate system reliability, linking its reliability model and its operation process model and considering variable at different operation states its reliability structure and its components reliability parameters is applied to the reliability evaluation of an exemplary system. Next the results of this simulation method application are illustrated and compared with the results obtained by the analytical method.
Źródło:
Journal of Polish Safety and Reliability Association; 2015, 6, 1; 137--144
2084-5316
Pojawia się w:
Journal of Polish Safety and Reliability Association
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Testing the integrated package of tools supporting decision making on identification, prediction and optimization of complex technical systems operation, reliability and safety. Part 7. IS&RDSS Application – Exemplary system operation and reliability new strategy
Autorzy:
Kołowrocki, K.
Soszyńska-Budny, J.
Xie, M.
Powiązania:
https://bibliotekanauki.pl/articles/2069532.pdf
Data publikacji:
2011
Wydawca:
Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
Tematy:
reliability
operation process
operation cost
complex systems
optimization
availability
Opis:
The paper presents the collection of the results concerned with the exemplary system operation, reliability, availability, maintenance and cost analysis, modelling, prediction and optimization coming from the Integrated Safety and Reliability Decision Support System - IS&RDSS application performed in its six previous parts. On the basis of the collected operation and reliability parameters and characteristics of the exemplary system before and after its operation process optimization, there is suggested its operation and reliability new strategy.
Źródło:
Journal of Polish Safety and Reliability Association; 2011, 2, 2; 445--452
2084-5316
Pojawia się w:
Journal of Polish Safety and Reliability Association
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Komputerowa predykcja niezawodności i ryzyka złożonych systemów technicznych
Computer predictions of complex technical system reliability and risk
Autorzy:
Blokus-Roszkowska, A.
Guze, S.
Kołowrocki, K.
Soszyńska-Budny, J.
Powiązania:
https://bibliotekanauki.pl/articles/257889.pdf
Data publikacji:
2011
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Technologii Eksploatacji - Państwowy Instytut Badawczy
Tematy:
system techniczny
niezawodność
ryzyko
predykcja
technical system
reliability
risk
prediction
Opis:
W artykule zaprezentowany jest program komputerowy pozwalający na ocenę i predykcję charakterystyk niezawodności i ryzyka złożonych systemów technicznych wraz z przykładem jego zastosowania. Algorytmy programu przygotowane zostały w oparciu o modele złożonych systemów technicznych, łączących modele ich niezawodności z modelami ich procesów eksploatacji, przy uwzględnieniu zmiennych w różnych stanach eksploatacyjnych ich struktur niezawodnościowych. Przy założeniu, że elementy systemów mają wykładnicze funkcje niezawodności, program wyznacza ich warunkowe funkcje niezawodności w poszczególnych stanach eksploatacyjnych systemów, bezwarunkowe funkcje niezawodności wraz z wykresami, wartości średnie oraz odchylenia standardowe bezwarunkowych czasów przebywania systemów w podzbiorach stanów niezawodnościowych oraz w poszczególnych stanach niezawodnościowych rozważanych systemów. Program wykreśla także funkcję ryzyka oraz wyznacza moment do przekroczenia dopuszczalnego poziomu funkcji ryzyka systemów.
The presented computer program for the evaluation and prediction of complex, technical system reliability and risk is based on methods and algorithms included in [1]. The computer program allows automatic determination of reliability and risk characteristics for systems considered in the paper under the assumption that the considered systems are exponential. The computer program can be applied for prediction and optimisation operation, reliability and risk of complex transportation systems and processes, particularly for port, shipyard and maritime transportation systems.
Źródło:
Problemy Eksploatacji; 2011, 1; 33-44
1232-9312
Pojawia się w:
Problemy Eksploatacji
Dostawca treści:
Biblioteka Nauki
Artykuł

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