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Wyszukujesz frazę "process reliability" wg kryterium: Temat


Tytuł:
Modelowanie niezawodności złożonych systemów bioagrotechnicznych
Modelling of reliability of complex bioagrotechnical systems
Autorzy:
Kusz, A.
Marciniak, A.
Powiązania:
https://bibliotekanauki.pl/articles/286916.pdf
Data publikacji:
2010
Wydawca:
Polskie Towarzystwo Inżynierii Rolniczej
Tematy:
system bioagrotechniczny
niezawodność procesu
dynamiczne sieci bayesowskie
bioagrotechnical system
process reliability
dynamic Bayesian networks
Opis:
W artykule omówiono metodę modelowania niezawodności złożonych systemów bioagrotechnicznych. Przedstawiono koncepcję modelu niezawodności procesowej opartą na technologii sieci bayesowskich. Niezawodność procesu zdefiniowano jako miarę probabilistyczną na zbiorze wartości pewnego funkcjonału reprezentującego potencjalny plon i jego ewentualny spadek powodowany zagrożeniami biologicznymi i częściowo kształtowany poprzez warunki klimatyczne i działania interwencyjne. Ewolucję zmian niezawodności procesu odwzorowano korzystając z sieci dynamicznych, które uwzględniają lokalizację w czasie.
The article deals with the method of modelling of reliability of complex bioagrotechnical systems. The concept of the model of process reliability based on the technology of Bayesian networks was presented. The reliability of the process was defined as a probabilistic measure on the set of values of a certain functional representing the potential yield and its possible decrease caused by biological threats and shaped partly by climate conditions and intervention actions. The evolution of changes of reliability of the process was mapped with the use of dynamic networks that take time location into account.
Źródło:
Inżynieria Rolnicza; 2010, R. 14, nr 4, 4; 157-162
1429-7264
Pojawia się w:
Inżynieria Rolnicza
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 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:
Issues on Production Process Reliability Assessment – Review
Autorzy:
Chlebus, M.
Werbińska-Wojciechowska, S.
Powiązania:
https://bibliotekanauki.pl/articles/409248.pdf
Data publikacji:
2016
Wydawca:
Politechnika Poznańska. Wydawnictwo Politechniki Poznańskiej
Tematy:
production process
reliability assessment
Opis:
The paper discusses a problem of reliable performance of production processes. Reliability analyses of production systems regard considering many different factors and requirements. As a result, basic definitions connected with production system/process have been defined. Later, there has been also presented the literature review in reliability engineering, what gives the possibility to present a comparison analysis of known reliability models for production systems performance. Based on the presented literature summary, the multidimensional definition of production process reliability is developed with short example of its implementation possibilities. The work ends up with summary and directions for further research.
Źródło:
Research in Logistics & Production; 2016, 6, 6; 481-497
2083-4942
2083-4950
Pojawia się w:
Research in Logistics & Production
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wpływ robotyzacji na niezawodność procesu produkcyjnego w branży piekarniczej
The influence of robotization on the reliability of the production process in the bakery industry
Autorzy:
Drozd, Radosław
Powiązania:
https://bibliotekanauki.pl/articles/270732.pdf
Data publikacji:
2019
Wydawca:
Centralny Ośrodek Badawczo-Rozwojowy Aparatury Badawczej i Dydaktycznej, COBRABiD
Tematy:
niezawodność procesu produkcyjnego
robotyzacja
koncepcja probabilistyczna
reliability of the production process
robotization
probabilistic concept
Opis:
Celem artykułu jest ustalenie wpływu robotyzacji na niezawodność linii produkcyjnej mikro i małych przedsiębiorstw w branży piekarniczej na podstawie badań wykonanych w okresie 2016.01.02-2018.12.31. Autor przedstawił problematykę opomiarowania niezawodności zrobotyzowanego systemu produkcyjnego, wyszczególnił wszystkie maszyny po robotyzacji, oznaczając je odpowiednio w procesie, co było niezbędne do dalszych obliczeń. Następnie zostały przedstawione obliczenia niezawodności wybranego projektu systemu zrobotyzowanego (wersja robocza – TRAY), oparte na koncepcji probabilistycznej. W dalszej części artykułu został zaprezentowany schemat niezawodności zrobotyzowanego procesu produkcyjnego chleba z wykorzystaniem jednej linii WPH1 wraz z końcowymi wynikami, które wykazały, że po wprowadzeniu systemu zrobotyzowanego, niezawodność pracy maszyn na linii produkcyjnej chleba uległa poprawie o 6%.
The purpose of the article is to determine the impact of robotics on the reliability of the production line of micro and small enterprises in the baking industry, based on research carried out in the period 2016.01.02-2018.12.31. The author presented the issues of measuring the reliability of a robotic production system, specified all machines after robotization, marking them appropriately in the process, which was necessary for further calculations. Then, the reliability calculations of the selected robotic system design (working name – TRAY) based on the probabilistic concept were presented. The rest of the article presents a diagram of the reliability of the robotic bread production process using one WPH1 line together with the final results showed that after the introduction of the robotic system, the reliability of machines on the bread production line improved by 6%.
Źródło:
Aparatura Badawcza i Dydaktyczna; 2019, 24, 3; 204-211
2392-1765
Pojawia się w:
Aparatura Badawcza i Dydaktyczna
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of the Demand Planning Process on Logistic System Reliability. Case Study
Autorzy:
Szozda, Natalia
Werbińska-Wojciechowska, Sylwia
Powiązania:
https://bibliotekanauki.pl/articles/504072.pdf
Data publikacji:
2011
Wydawca:
Międzynarodowa Wyższa Szkoła Logistyki i Transportu
Tematy:
demand planning process
reliability
logistic system
Opis:
Authors define the main elements affecting the right logistic system performance level and investigate the possible connections between demand process planning quality and logistic system reliability. Thus, known in the literature definitions of logistic system reliability are characterized. Later, an overview of some recent developments in the analyzed research area is provided. In the next point, authors present the main elements affecting the reliable and available logistic system performance. Finally, the paper is ended by the presentation of the obtained analysis results in comparison with the knowledge about the case companies’ present condition.
Źródło:
Logistics and Transport; 2011, 13, 2; 79-92
1734-2015
Pojawia się w:
Logistics and Transport
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Problematics of reliability of road rollers
Autorzy:
Stawowiak, M.
Kuczaj, M.
Powiązania:
https://bibliotekanauki.pl/articles/409921.pdf
Data publikacji:
2018
Wydawca:
STE GROUP
Tematy:
exploitation
reliability
operation process
road roller
Opis:
This article refers to the reliability of road rollers used in a selected roadworks company. Information on the method of road rollers service and how the service affects the reliability of these rollers is presented. Attention was paid to the process of the implemented maintenance plan with regard to the machine's operational time. The reliability of road rollers was analyzed by determining and interpreting readiness coefficients.
Źródło:
Management Systems in Production Engineering; 2018, 2 (26); 124-128
2299-0461
Pojawia się w:
Management Systems in Production Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Modelling reliability of water supply network
Autorzy:
Kołowrocki, K.
Tchórzewska-Cieślak, B.
Piegdoń, I.
Powiązania:
https://bibliotekanauki.pl/articles/2069056.pdf
Data publikacji:
2015
Wydawca:
Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
Tematy:
modelling
water supply
reliability
operation process
Opis:
The operation process of the complex technical system is considered and its operation states are introduced. The semi-Markov process is used to construct a general probabilistic model of the considered complex technical system operation processes. Further, a general reliability analytical model of complex two-state technical systems related to their operation processes is constructed. An exemplary application of this model to a simplified fragment of the main water supply network operating at variable conditions is presented as well.
Źródło:
Journal of Polish Safety and Reliability Association; 2015, 6, 2; 125--134
2084-5316
Pojawia się w:
Journal of Polish Safety and Reliability Association
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Monte Carlo method for reliability of parallel system with dependent failures of component
Autorzy:
Grabski, F.
Powiązania:
https://bibliotekanauki.pl/articles/2069174.pdf
Data publikacji:
2016
Wydawca:
Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
Tematy:
reliability
stochastic process
Weibull distribution
dependency
Opis:
A problem of parallel system reliability with dependent failures of components is presented in the paper. It is assumed that lifetimes of components are independent random variable having Weibull distribution. We take under consideration a parallel (in reliability meaning) system consisting of n independent at the beginning of work and identical components. We assume that a load of the working system affects on the reliability of its components and the load of the system is distributed on all working components. Therefore, a failure rate of each component is changeable during run of the system and depends on a number of working elements at this point in time. As a model of the system failures we construct a stochastic process which value at the moment t denotes the number of working components. Generally it is neither Markov nor semi-Markov process. To assess the reliability characteristics of the system we simulate this stochastic process using the Monte-Carlo method and we calculate values of nonparametric kernel density and reliability functions estimators.
Źródło:
Journal of Polish Safety and Reliability Association; 2016, 7, 1; 67--72
2084-5316
Pojawia się w:
Journal of Polish Safety and Reliability Association
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Operational reliability of heat supply systems
Autorzy:
Babiarz, B.
Powiązania:
https://bibliotekanauki.pl/articles/2069555.pdf
Data publikacji:
2008
Wydawca:
Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
Tematy:
reliability
heat supply system
operation process
Opis:
The paper contains an analysis of the operational process of heat supply system with taking into consideration its reliability. The specific character of the operation of heat-supply systems has been considered in this work. In the process of the exploitation of heat-supply systems there have been distinguished five operational states, assuming as a criterion of the level of indoor temperature decrease in residential rooms. The method of modelling the operational reliability of heat-supply systems is worked out. The methodology of determining the overall index of heat-supply system reliability has been presented. The measure of heat-supply system reliability has been assumed as the scale/quantity of inadequate supply of heat power at a given state. Calculations have been carried out regarding the changeability of exterior conditions for one of the groups of customers – residential users. On the basis of the operational data for the heat supply system with two heat sources shortage quantities of heat power and the probability of their occurrence have been calculated as an application of this methodology.
Źródło:
Journal of Polish Safety and Reliability Association; 2008, 1; 27--31
2084-5316
Pojawia się w:
Journal of Polish Safety and Reliability Association
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Enhancing business process event logs with software failure data
Autorzy:
Gruszczyński, K.
Powiązania:
https://bibliotekanauki.pl/articles/411307.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Oddział w Lublinie PAN
Tematy:
business process modeling
exceptional process paths
software reliability
failure classification
process mining
Opis:
Process mining techniques allow for the analysis of the real process flow. This flow might be disturbed for many reasons, including software failures. It is also possible for failure occurrence to be the consequence of the faulty process execution. A method for measuring the harmfulness of the software failure regarding business processes executed by the user would be a valuable asset for quality and reliability improvement. In this paper, we take the first step towards developing this method by providing a tool for enhancing XES event logs with failure data. We begin with an introduction to this topic and background analysis in the field of failure classification and process mining techniques supporting failure analysis. Then we present our method for merging operational and failure data. By carrying out a case study based on real data, we evaluate our tool and present the aim of our future work.
Źródło:
ECONTECHMOD : An International Quarterly Journal on Economics of Technology and Modelling Processes; 2019, 8, 1; 27-32
2084-5715
Pojawia się w:
ECONTECHMOD : An International Quarterly Journal on Economics of Technology and Modelling Processes
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:
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

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