Temat: large system - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Reliability and risk function improvement of bulk cargo transportation system
Autorzy:: Kwiatuszewska-Sarnecka, B.
Powiązania:: https://bibliotekanauki.pl/articles/2069059.pdf
Data publikacji:: 2015
Wydawca:: Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
Tematy:: reliability
reliability improvement
multistate system
large system
Opis:: In the paper the basic notions of the ageing multistate systems reliability analysis are introduced. The multistate system reliability functions are defined and the mean values of the multistate system lifetimes in the reliability state subsets and in the particular reliability states are determined. The notion of the multistate system risk function and the moment of the system exceeding the critical reliability state are introduced. Further, in the developed reliability models, it is assumed that the system’s components have the multistate Weibull reliability functions with various parameters in their different reliability state subsets. Under this assumption, the proposed multistate system reliability models are applied in maritime transport to the reliability analysis of a bulk cargo transportation system and its reliability function, moreover other main characteristics are determined.
Źródło:: Journal of Polish Safety and Reliability Association; 2015, 6, 2; 81--88
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:: Computer-aided prediction of the renewal and availability characteristics of complex technical systems
Autorzy:: Blokus-Roszkowska, A.
Guze, S.
Kołowrocki, K.
Soszyńska-Budny, J.
Powiązania:: https://bibliotekanauki.pl/articles/2069550.pdf
Data publikacji:: 2011
Wydawca:: Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
Tematy:: reliability
large system
availability
renewal
prediction
Opis:: The procedures of defining the parameters of the availability of the multistate systems in variable operation conditions are shown. Furthermore, the renewal and availability characteristics of the complex technical system are defined. The computer program for prediction of these characteristics capabilities with description are presented. As the application of this computer program, the prediction the renewal ad availability characteristics of the exemplary complex technical system is shown.
Źródło:: Journal of Polish Safety and Reliability Association; 2011, 2, 2; 247--254
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 modelling of complex systems. Part 2
Autorzy:: Kołowrocki, K.
Powiązania:: https://bibliotekanauki.pl/articles/2069591.pdf
Data publikacji:: 2007
Wydawca:: Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
Tematy:: reliability
large system
asymptotic approach
limit reliability function
Opis:: Series-“m out of n” systems and “m out of n”-series systems are defined and exemplary theorems on their limit reliability functions are presented and applied to the reliability evaluation of a piping transportation system and a rope elevator. Applications of the asymptotic approach in large series systems reliability improvement are also presented. The paper is completed by showing the possibility of applying the asymptotic approach to the reliability analysis of large systems placed in their variable operation processes. In this scope, the asymptotic approach to reliability evaluation for a port grain transportation system related to its operation process is performed.
Źródło:: Journal of Polish Safety and Reliability Association; 2007, 2; 231--242
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:: 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: 5.

Tytuł:: Reliability modelling of complex systems. Part 1
Autorzy:: Kołowrocki, K.
Powiązania:: https://bibliotekanauki.pl/articles/2069590.pdf
Data publikacji:: 2007
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 the application of limit reliability functions to the reliability evaluation of large systems. Two-state large non-repaired systems composed of independent components are considered. The asymptotic approach to the system reliability investigation and the system limit reliability function are defined. Two-state homogeneous series, parallel and series-parallel systems are defined and their exact reliability functions are determined. The classes of limit reliability functions of these systems are presented. The results of the investigation concerned with domains of attraction for the limit reliability functions of the considered systems and the investigation concerned with the reliability of large hierarchical systems as well are discussed in the paper. The paper contains exemplary applications of the presented facts to the reliability evaluation of large technical systems.
Źródło:: Journal of Polish Safety and Reliability Association; 2007, 2; 219--230
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:: Time differences in operation states of “Stena Baltica” ferry during the open water areas passages
Autorzy:: Jurdziński, M.
Guze, S.
Kamiński, P.
Powiązania:: https://bibliotekanauki.pl/articles/2069690.pdf
Data publikacji:: 2009
Wydawca:: Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
Tematy:: navigation
reliability
large system
asymptotic approach
limit reliability function
Opis:: The paper deals with analysis of ships operation states in open water areas effected by environmental constraints influencing on ship sea keeping parameters in application to “Stena Baltica” ferry operated at the Baltic Sea between Gdynia and Karlskrona harbors.
Źródło:: Journal of Polish Safety and Reliability Association; 2009, 1; 171--178
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:: 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

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Skocz do pozycji: 8.

Tytuł:: The influence of the connection properties of prefabricated large-panel walls on the static and dynamic behavior of a building
Autorzy:: Yavas, Civan
Pawlak, Zdzisław Mikołaj
Powiązania:: https://bibliotekanauki.pl/articles/38912677.pdf
Data publikacji:: 2023
Wydawca:: Instytut Podstawowych Problemów Techniki PAN
Tematy:: large panel system
LPS
prefabricated buildings
precast connection
seismic analysis
Opis:: The aim of this article is to present a method of assessing the load-bearing capacity of prefabricated large-panel buildings built after the 1950s. Since the main problem in the existing large-panel system buildings is the actual condition of the joints between the panels, it was decided to investigate their impact on the behavior of the entire structure. Therefore, analyses were carried out in which the influence of the adopted connection models on the static and dynamic behavior of the building was examined. Several calculation models of the building were analyzed using three different types of connections between wall and ceiling panels: rigid, elastic and hinged, each representing a distinct state of the actual connection. The criterion used for the comparisons were the values of extreme internal forces and static displacements as well as the dynamic responses of the structure. The parameters that have the greatest influence on the static and dynamic analyses’ results are described and commented on in the conclusion. The analyses’ results are supported by data obtained from source materials: inspection reports, case studies and technical documents. The research helps to understand better the static and dynamic behavior of a building erected using a system of prefabricated large-size panels and to determine the main parameters of the structure influencing this behavior. However, as a result of the research, it was found that changes in the state of panel connection in large-panel system buildings do not have such a significant impact on the overall static and dynamic responses of the structure as initially expected.
Źródło:: Engineering Transactions; 2023, 71, 4; 443-472
0867-888X
Pojawia się w:: Engineering Transactions
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Reengineering the topological structures of large-scale monitoring systems
Autorzy:: Beskorovainyi, V.
Podoliaka, K.
Powiązania:: https://bibliotekanauki.pl/articles/410642.pdf
Data publikacji:: 2015
Wydawca:: Polska Akademia Nauk. Oddział w Lublinie PAN
Tematy:: large-scale monitoring system (LSMS)
structure
topology
reengineering
Opis:: As part of the solution of problem optimization of large-scale facilities carried out formalization of the system description of large-scale monitoring, defined the composition and the relationship subsets of elements, relationships, topologies and properties. Formulated the mathematical model and the task of reengineering topological structures of centralized three-tier system of largescale monitoring based on indices of cost and efficiency. The proposed mathematical model explicitly set relations between costs for the reengineering and time processing messages in the system from its structure and topology. The analysis of the objective function revealed that envelopes their local extrema are one-extreme (relative to the number of nodes in the system). Considering this, proposed a method of directed inspection of local extrema, which allow to find best solutions in terms of the minimum additional cost. Selection of the single solution from a set of effective proposed to carry out the method of hierarchy analysis or cardinalist approach aided by the additive function of general utility. The values of the weighting coefficients of the utility functions is carried out by an expert or based on comparator identification. Practical application these results allows reduce the time of obtaining solutions and more accurate solving of large dimension problem.
Źródło:: ECONTECHMOD : An International Quarterly Journal on Economics of Technology and Modelling Processes; 2015, 4, 3; 13-18
2084-5715
Pojawia się w:: ECONTECHMOD : An International Quarterly Journal on Economics of Technology and Modelling Processes
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Systems reliability analysis in variable operation conditions
Autorzy:: Soszyńska, J.
Powiązania:: https://bibliotekanauki.pl/articles/2069605.pdf
Data publikacji:: 2007
Wydawca:: Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
Tematy:: reliability function
semi-markov process
large multi state system
Opis:: The semi-markov model of the system operation process is proposed and its selected parameters are defined. There are found reliability and risk characteristics of the multi-state series- “m out of k ” system. Next, the joint model of the semi-markov system operation process and the considered multi-state system reliability and risk is constructed. The asymptotic approach to reliability and risk evaluation of this system in its operation process is proposed as well.
Źródło:: Journal of Polish Safety and Reliability Association; 2007, 2; 319--330
2084-5316
Pojawia się w:: Journal of Polish Safety and Reliability Association
Dostawca treści:: Biblioteka Nauki

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