Pub Date : 2019-04-15DOI: 10.25728/ASSA.2019.19.1.594
A. Bakhtizin, V. Makarov, E. Sushko, G. Sushko
In this work we describe the application of the graph decomposition algorithms for the development of a scalable high-performance agent-based model of population of Russia described in terms of demography, migration and transport flows. The simulated system consists of agents representing individuals and sets of links to other agents, which represent the social interactions of individual. Individual agents in the model participate in several independent processes, for which different sets of social links is important such as family and neighbors. To perform a load balancing of agents between cluster computer nodes the METIS graph decomposition algorithm was used. These algorithms allow to split the graph of agents and links into parts of similar size with least possible number of links between them. A number of numerical experiments was carried out for test model to estimate the influence of the parameters of the model on scalability.
{"title":"The application of graph decomposition to development of large scale agent-based economic models","authors":"A. Bakhtizin, V. Makarov, E. Sushko, G. Sushko","doi":"10.25728/ASSA.2019.19.1.594","DOIUrl":"https://doi.org/10.25728/ASSA.2019.19.1.594","url":null,"abstract":"In this work we describe the application of the graph decomposition algorithms for the development of a scalable high-performance agent-based model of population of Russia described in terms of demography, migration and transport flows. The simulated system consists of agents representing individuals and sets of links to other agents, which represent the social interactions of individual. Individual agents in the model participate in several independent processes, for which different sets of social links is important such as family and neighbors. To perform a load balancing of agents between cluster computer nodes the METIS graph decomposition algorithm was used. These algorithms allow to split the graph of agents and links into parts of similar size with least possible number of links between them. A number of numerical experiments was carried out for test model to estimate the influence of the parameters of the model on scalability.","PeriodicalId":39095,"journal":{"name":"Advances in Systems Science and Applications","volume":"19 1","pages":"141-149"},"PeriodicalIF":0.0,"publicationDate":"2019-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44521250","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-04-15DOI: 10.25728/ASSA.2019.19.1.647
I. Almutairy, J. Asumadu, Zhang Xingzhe
LVDC transmission has fewer distributional losses than AC distribution, integrating renewable sources, greatly increasing the mix of clean energy sources in the standard grid in the next decade and this has become a trend that is likely to continue. As an additional benefit, DC electrical power is oftentimes seen as beneficial to applications that use cleanly generated, renewable power. Considering DC power system design, and focusing on fault protection and the systems DC circuit breaker, are system priorities. Only solid-state circuit breakers (SSCB) should be considered to obtain advanced system topography. A new type of solid state circuit breaker is being developed as a new power device for LVDC power networks to replace the EMCB. The only suitable candidate for this task is the insulated gate bipolar transistor (IGBT). Development of DC grid protection allows for the development and improvement of new power electronic devices, focusing in on the application for medium to low voltage DC grids, a rapidly acting switching function as well as fault current limiting features. To avoid nuisance tripping, fault current limiting function can be satisfactorily accomplished by extending the elapsed time using the same control circuit. This paper introduces a novel circuit breaker model for LVDC, which utilizes a coupled inductor circuit breaker, and a mathematical model of IGBT has been developed.
{"title":"Protecting A Low Voltage Direct Current System Using Solid-State Switching Devices for DC Grid Applications","authors":"I. Almutairy, J. Asumadu, Zhang Xingzhe","doi":"10.25728/ASSA.2019.19.1.647","DOIUrl":"https://doi.org/10.25728/ASSA.2019.19.1.647","url":null,"abstract":"LVDC transmission has fewer distributional losses than AC distribution, integrating renewable sources, greatly increasing the mix of clean energy sources in the standard grid in the next decade and this has become a trend that is likely to continue. As an additional benefit, DC electrical power is oftentimes seen as beneficial to applications that use cleanly generated, renewable power. Considering DC power system design, and focusing on fault protection and the systems DC circuit breaker, are system priorities. Only solid-state circuit breakers (SSCB) should be considered to obtain advanced system topography. A new type of solid state circuit breaker is being developed as a new power device for LVDC power networks to replace the EMCB. The only suitable candidate for this task is the insulated gate bipolar transistor (IGBT). Development of DC grid protection allows for the development and improvement of new power electronic devices, focusing in on the application for medium to low voltage DC grids, a rapidly acting switching function as well as fault current limiting features. To avoid nuisance tripping, fault current limiting function can be satisfactorily accomplished by extending the elapsed time using the same control circuit. This paper introduces a novel circuit breaker model for LVDC, which utilizes a coupled inductor circuit breaker, and a mathematical model of IGBT has been developed.","PeriodicalId":39095,"journal":{"name":"Advances in Systems Science and Applications","volume":"19 1","pages":"44-60"},"PeriodicalIF":0.0,"publicationDate":"2019-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48982900","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-04-04DOI: 10.25728/ASSA.2019.19.1.656
M. Forghani-elahabad, N. Kagan
There are several real-world systems which can be modeled as multistate flow networks (MFNs). Many researchers have worked on reliability evaluation of an MFN, and accordingly variety of approaches have been proposed in this regard. The problem of finding all the lower boundary points (LBPs) in a multistate flow network (MFN) has been attracting significant attention in the recent decades as these vectors can be used for reliability evaluation of MFNs. Once all the LBPs are determined, the reliability of the network can be calculated by using some techniques such as the inclusion–exclusion principle or the sum of disjoint products (SDP). Several algorithms have been proposed to address this problem in the literature in terms of minimal paths or minimal cuts. As in the real systems the data (flow or commodity) are usually transmitting from several sources to a number of destinations, the problem of determining all the LBPs in a multi-node-pair MFN is considered in this work. An improved algorithm is proposed to address the problem. The algorithm is illustrated through a benchmark network example. The complexity results are computed. The efficiency of the algorithm is demonstrated through a numerical example and the complexity results.
{"title":"A simple improved algorithm to find all the lower boundary points in a multiple-node-pair multistate flow network","authors":"M. Forghani-elahabad, N. Kagan","doi":"10.25728/ASSA.2019.19.1.656","DOIUrl":"https://doi.org/10.25728/ASSA.2019.19.1.656","url":null,"abstract":"There are several real-world systems which can be modeled as multistate flow networks (MFNs). Many researchers have worked on reliability evaluation of an MFN, and accordingly variety of approaches have been proposed in this regard. The problem of finding all the lower boundary points (LBPs) in a multistate flow network (MFN) has been attracting significant attention in the recent decades as these vectors can be used for reliability evaluation of MFNs. Once all the LBPs are determined, the reliability of the network can be calculated by using some techniques such as the inclusion–exclusion principle or the sum of disjoint products (SDP). Several algorithms have been proposed to address this problem in the literature in terms of minimal paths or minimal cuts. As in the real systems the data (flow or commodity) are usually transmitting from several sources to a number of destinations, the problem of determining all the LBPs in a multi-node-pair MFN is considered in this work. An improved algorithm is proposed to address the problem. The algorithm is illustrated through a benchmark network example. The complexity results are computed. The efficiency of the algorithm is demonstrated through a numerical example and the complexity results.","PeriodicalId":39095,"journal":{"name":"Advances in Systems Science and Applications","volume":"19 1","pages":"1-11"},"PeriodicalIF":0.0,"publicationDate":"2019-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45049557","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-12-29DOI: 10.25728/ASSA.2018.18.4.584
G. Ougolnitsky, T. Anopchenko, O. Gorbaneva, E. Lazareva, A. Murzin
No doubt, this research is topical in the context of new challenges arising for different Russian territories (regions) due to intensive globalization processes and jumping trends of world economy. These challenges are stressing the need for an innovation-oriented improvement of regional management systems in accordance with the realities of cyclicity and the conditions of fundamental resources to stimulate positive social and economic dynamics. The goal of the present paper is to justify a methodology and real ways of regional sustainable management system design based on efficient model tools and information technology. For achieving this goal, several problems have been solved such as the dynamic modeling of a regional social-ecological-economic system and coordination of public (social) and private interests, the elaboration of reasonable management approaches to regional development risks, as well as the design of an appropriate methodology to integrate the suggested models and approaches within an information-analytical sustainable management support system. The novelty of an original scientific outlook introduced by the authors consists in the elaboration of a well-grounded systems methodology and model tools for regional sustainable management and also in the justification and verification of qualitative and quantitative approaches to the analysis of regional development risks and their integration into a unified regional sustainable management system. The methodology and model tools presented below can be used for enhancing the scientific and practical components of a regional sustainable management system under dynamic and conflicting external conditions.
{"title":"Systems Methodology And Model Tools For Territorial Sustainable Management","authors":"G. Ougolnitsky, T. Anopchenko, O. Gorbaneva, E. Lazareva, A. Murzin","doi":"10.25728/ASSA.2018.18.4.584","DOIUrl":"https://doi.org/10.25728/ASSA.2018.18.4.584","url":null,"abstract":"No doubt, this research is topical in the context of new challenges arising for different Russian territories (regions) due to intensive globalization processes and jumping trends of world economy. These challenges are stressing the need for an innovation-oriented improvement of regional management systems in accordance with the realities of cyclicity and the conditions of fundamental resources to stimulate positive social and economic dynamics. \u0000The goal of the present paper is to justify a methodology and real ways of regional sustainable management system design based on efficient model tools and information technology. \u0000For achieving this goal, several problems have been solved such as the dynamic modeling of a regional social-ecological-economic system and coordination of public (social) and private interests, the elaboration of reasonable management approaches to regional development risks, as well as the design of an appropriate methodology to integrate the suggested models and approaches within an information-analytical sustainable management support system. \u0000The novelty of an original scientific outlook introduced by the authors consists in the elaboration of a well-grounded systems methodology and model tools for regional sustainable management and also in the justification and verification of qualitative and quantitative approaches to the analysis of regional development risks and their integration into a unified regional sustainable management system. \u0000The methodology and model tools presented below can be used for enhancing the scientific and practical components of a regional sustainable management system under dynamic and conflicting external conditions.","PeriodicalId":39095,"journal":{"name":"Advances in Systems Science and Applications","volume":"18 1","pages":"136-150"},"PeriodicalIF":0.0,"publicationDate":"2018-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45624452","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-12-28DOI: 10.25728/assa.2018.18.4.555
A. Ashimov, Y. Borovskiy
Purpose of this paper is to show the potential of parametric control theory approach for the optimal solution of global problems (in the case of the food problem) and to substantiate the benefits of joint action to solve them on the basis of the developed global multi-country computable general equilibrium model (hereinafter - Model). The main results of the paper: Model verification (testing the possibility of its practical application) of the constructed and calibrated Model was successfully carried out by methods of parametric control theory: using sustainability assessments and assessments of sustainability indicators of smooth mappings, which are defined by the Model; as well as through conducting of series of counterfactual and forecast scenarios. Based on the Model a number of parametric control problems were solved in finding the optimal values of the instruments of public policy, which provide economic growth, reducing the gap in economic development between rich and poor regions, as well as increasing the production of agricultural products in the regions. Value consists in the developed Model and in showing approaches of parametric control theory on providing guidance to address global problems and to substantiate the benefits of joint action within the framework of their decision.
{"title":"Solution of one Global Problem by Approach of the Parametric Control Theory","authors":"A. Ashimov, Y. Borovskiy","doi":"10.25728/assa.2018.18.4.555","DOIUrl":"https://doi.org/10.25728/assa.2018.18.4.555","url":null,"abstract":"Purpose of this paper is to show the potential of parametric control theory approach for the optimal solution of global problems (in the case of the food problem) and to substantiate the benefits of joint action to solve them on the basis of the developed global multi-country computable general equilibrium model (hereinafter - Model). \u0000The main results of the paper: \u0000Model verification (testing the possibility of its practical application) of the constructed and calibrated Model was successfully carried out by methods of parametric control theory: using sustainability assessments and assessments of sustainability indicators of smooth mappings, which are defined by the Model; as well as through conducting of series of counterfactual and forecast scenarios. \u0000Based on the Model a number of parametric control problems were solved in finding the optimal values of the instruments of public policy, which provide economic growth, reducing the gap in economic development between rich and poor regions, as well as increasing the production of agricultural products in the regions. \u0000Value consists in the developed Model and in showing approaches of parametric control theory on providing guidance to address global problems and to substantiate the benefits of joint action within the framework of their decision.","PeriodicalId":39095,"journal":{"name":"Advances in Systems Science and Applications","volume":"18 1","pages":"64-73"},"PeriodicalIF":0.0,"publicationDate":"2018-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48551448","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-12-28DOI: 10.25728/ASSA.2018.18.4.572
A. Sadek, M. El-din, Shaimaa Elmeghawry
This paper discussed the problem of stress-strength reliability model R=Pr(Y< X). It is assumed that the strength of a system X, and the environmental stress applied on it Y, follow the Quasi Lindley Distribution(QLD). Stress-strength reliability is studied using the maximum likelihood, and Bayes estimations. Asymptotic confidence interval for reliability is obtained. Bayesian estimations were proposed using two different methods: Importance Sampling technique, and MCMC technique via Metropolis-Hastings algorithm, under symmetric loss function (squared error) and asymmetric loss functions (linex, general entropy). The behaviors of the maximum likelihood and Bayes estimators of stress-strength reliability have been studied through the Monte Carlo simulation study.
本文讨论了应力强度可靠性模型R=Pr（Y
{"title":"Estimation of Stress-Strength Reliability for Quasi Lindley Distribution","authors":"A. Sadek, M. El-din, Shaimaa Elmeghawry","doi":"10.25728/ASSA.2018.18.4.572","DOIUrl":"https://doi.org/10.25728/ASSA.2018.18.4.572","url":null,"abstract":"This paper discussed the problem of stress-strength reliability model R=Pr(Y< X). It is assumed that the strength of a system X, and the environmental stress applied on it Y, follow the Quasi Lindley Distribution(QLD). Stress-strength reliability is studied using the maximum likelihood, and Bayes estimations. Asymptotic confidence interval for reliability is obtained. Bayesian estimations were proposed using two different methods: Importance Sampling technique, and MCMC technique via Metropolis-Hastings algorithm, under symmetric loss function (squared error) and asymmetric loss functions (linex, general entropy). The behaviors of the maximum likelihood and Bayes estimators of stress-strength reliability have been studied through the Monte Carlo simulation study.","PeriodicalId":39095,"journal":{"name":"Advances in Systems Science and Applications","volume":"18 1","pages":"39-51"},"PeriodicalIF":0.0,"publicationDate":"2018-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49305072","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-12-28DOI: 10.25728/ASSA.2018.18.4.623
E. Umoh, O. Iloanusi
Chaotic systems are evidently very sensitive to slight perturbations in their algebraic structures and initial conditions, which can result in unpredictability of their future states. This characteristic has rendered them very useful in modelling and design of engineering and non-engineering systems. Using the Burke-Shaw chaotic system as a reference template, a special case of a novel 4-D hyperchaotic system is proposed. The system consists of 10 terms and 9 bounded parameters. In this paper, after the realization of a mathematical model of the novel system, we designed an autonomous electronic circuit equivalent of the model and subsequently proposed an improved adaptive finite-time stabilizing controllers which incorporates some augmented strength coefficients in the derived controller structures. These augmented coefficients greatly constrained transient overshoots and resulted in a faster convergence time for the controlled trajectories of the novel system. This novel system is suitable for application in the modelling and design of information security systems such as image encryption and multimedia security systems, due to its good bifurcation property.
{"title":"Chaotic Analysis and Improved Finite-Time Adaptive Stabilization of a Novel 4-D Hyperchaotic System","authors":"E. Umoh, O. Iloanusi","doi":"10.25728/ASSA.2018.18.4.623","DOIUrl":"https://doi.org/10.25728/ASSA.2018.18.4.623","url":null,"abstract":"Chaotic systems are evidently very sensitive to slight perturbations in their algebraic structures and initial conditions, which can result in unpredictability of their future states. This characteristic has rendered them very useful in modelling and design of engineering and non-engineering systems. Using the Burke-Shaw chaotic system as a reference template, a special case of a novel 4-D hyperchaotic system is proposed. The system consists of 10 terms and 9 bounded parameters. In this paper, after the realization of a mathematical model of the novel system, we designed an autonomous electronic circuit equivalent of the model and subsequently proposed an improved adaptive finite-time stabilizing controllers which incorporates some augmented strength coefficients in the derived controller structures. These augmented coefficients greatly constrained transient overshoots and resulted in a faster convergence time for the controlled trajectories of the novel system. This novel system is suitable for application in the modelling and design of information security systems such as image encryption and multimedia security systems, due to its good bifurcation property.","PeriodicalId":39095,"journal":{"name":"Advances in Systems Science and Applications","volume":"18 1","pages":"121-135"},"PeriodicalIF":0.0,"publicationDate":"2018-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46409730","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-12-28DOI: 10.25728/assa.2018.18.4.664
E. P. Rostova, M. Geras'kin
We consider the problem of the firm’s cost function optimization to prevent the industrial risks (i.e., the voluntary risk costs), by the criterion of the total costs with regard to a reinvestment of the firm’s profit. In the paper the voluntary risk costs function of the firm in the perfect competition by the total costs criterion is optimized. The rational strategy of the firm’s risk management consists in a gradual increase of the costs to prevent the risk situations with the production volume growth. The voluntary risk costs function is determined for the power function of the production costs and the exponential decreasing function of the industrial damage for the firm in the perfect competition.
{"title":"Costs Function Optimization For Prevention Of Firm’s Industrial Risks With Regard To Reinvestment Of Profit","authors":"E. P. Rostova, M. Geras'kin","doi":"10.25728/assa.2018.18.4.664","DOIUrl":"https://doi.org/10.25728/assa.2018.18.4.664","url":null,"abstract":"We consider the problem of the firm’s cost function optimization to prevent the industrial risks (i.e., the voluntary risk costs), by the criterion of the total costs with regard to a reinvestment of the firm’s profit. In the paper the voluntary risk costs function of the firm in the perfect competition by the total costs criterion is optimized. The rational strategy of the firm’s risk management consists in a gradual increase of the costs to prevent the risk situations with the production volume growth. The voluntary risk costs function is determined for the power function of the production costs and the exponential decreasing function of the industrial damage for the firm in the perfect competition.","PeriodicalId":39095,"journal":{"name":"Advances in Systems Science and Applications","volume":"18 1","pages":"52-63"},"PeriodicalIF":0.0,"publicationDate":"2018-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45600672","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-12-28DOI: 10.25728/ASSA.2018.18.4.536
Siva Kumar Mangipudi, D. S. Rao, M. Raju
Since most of the control systems operate under a large uncertainty, the study of robustness in stability has become vital in the presence of uncertainty. The largest uncertainty present in the control system causes degradation of system performance and destabilization. With a view to conquering the uncertainty, a novel approach for the design of robust PI/PID controller for the interval process plant is proposed in this paper. The proposed approach develops a robust PI/PID controller for the interval process plant with and without time delay based on necessary and sufficient conditions for stability of interval polynomial. Consequently, these conditions are used to derive a set of inequalities from the closed loop characteristic polynomial of an interval system in terms of controller parameters. Finally, these inequalities are solved to obtain controller parameters with the help of Particle Swarm Optimization (PSO). The proposed method has the advantage of having less computational complexity and easy to implement on a digital computer. The viability of the proposed methodology is illustrated through numerical examples of its successful implementation. The efficacy of the proposed methodology is also evaluated against the available approaches presented by Patre and Deore (2003), (2011) and the results were successfully implemented.
{"title":"Design of Robust Stabilizing PI/PID Controller for time delay Interval Process Plants Using Particle Swarm Optimization","authors":"Siva Kumar Mangipudi, D. S. Rao, M. Raju","doi":"10.25728/ASSA.2018.18.4.536","DOIUrl":"https://doi.org/10.25728/ASSA.2018.18.4.536","url":null,"abstract":"Since most of the control systems operate under a large uncertainty, the study of robustness in stability has become vital in the presence of uncertainty. The largest uncertainty present in the control system causes degradation of system performance and destabilization. With a view to conquering the uncertainty, a novel approach for the design of robust PI/PID controller for the interval process plant is proposed in this paper. The proposed approach develops a robust PI/PID controller for the interval process plant with and without time delay based on necessary and sufficient conditions for stability of interval polynomial. Consequently, these conditions are used to derive a set of inequalities from the closed loop characteristic polynomial of an interval system in terms of controller parameters. Finally, these inequalities are solved to obtain controller parameters with the help of Particle Swarm Optimization (PSO). The proposed method has the advantage of having less computational complexity and easy to implement on a digital computer. The viability of the proposed methodology is illustrated through numerical examples of its successful implementation. The efficacy of the proposed methodology is also evaluated against the available approaches presented by Patre and Deore (2003), (2011) and the results were successfully implemented.","PeriodicalId":39095,"journal":{"name":"Advances in Systems Science and Applications","volume":"18 1","pages":"92-120"},"PeriodicalIF":0.0,"publicationDate":"2018-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43425188","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-12-28DOI: 10.25728/assa.2018.18.4.624
V. S. Viktorova, N. V. Lubkov, A. S. Stepanyants
This paper discusses a unified approach to reliability, availability and performability analysis of complex engineering systems. Theoretical basis of this approach is continuous-time discrete state Markov processes with rewards. From reliability modeling point of view complex systems are the systems with static and dynamic redundancy, imperfect fault coverage, various recovery strategies, multilevel operation and varying severity of failure states. We propose a unified method of calculating the reliability, availability and performability indices based on the definition of special forms of reward matrix. This method proved to be effective in calculating both cumulative and instantaneous measures in steady-state and transient cases. We describe special analytical software which implements suggested method. We demonstrate the flexibility of the proposed method and software by analyzing multilevel process unit with protection and demand-based warm standby system.
{"title":"A Unified Approach to Reliability, Availability, Performability Analysis Based on Markov Processes with Rewards","authors":"V. S. Viktorova, N. V. Lubkov, A. S. Stepanyants","doi":"10.25728/assa.2018.18.4.624","DOIUrl":"https://doi.org/10.25728/assa.2018.18.4.624","url":null,"abstract":"This paper discusses a unified approach to reliability, availability and performability analysis of complex engineering systems. Theoretical basis of this approach is continuous-time discrete state Markov processes with rewards. From reliability modeling point of view complex systems are the systems with static and dynamic redundancy, imperfect fault coverage, various recovery strategies, multilevel operation and varying severity of failure states. We propose a unified method of calculating the reliability, availability and performability indices based on the definition of special forms of reward matrix. This method proved to be effective in calculating both cumulative and instantaneous measures in steady-state and transient cases. We describe special analytical software which implements suggested method. We demonstrate the flexibility of the proposed method and software by analyzing multilevel process unit with protection and demand-based warm standby system.","PeriodicalId":39095,"journal":{"name":"Advances in Systems Science and Applications","volume":"18 1","pages":"13-38"},"PeriodicalIF":0.0,"publicationDate":"2018-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47544433","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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