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A multi-objective optimization problem for multi-state series-parallel systems: A two-stage flow-shop manufacturing system
2015
Reliability Engineering & System Safety
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Since the problem is in the NP-hard class of combinatorial problems, genetic algorithm (GA) is used to find optimal/near optimal solutions. ...
Moreover, warm standby redundancy is considered for the redundancy allocation problem. ...
[3] proposed a hybrid genetic algorithm-tabu search approach to deal with redundancy allocation problem and expansion scheduling problem. ...
doi:10.1016/j.ress.2014.11.009
fatcat:gofhvba5hncvrif45xroixevuy
Integer Encoding Genetic Algorithm for Optimizing Redundancy Allocation of Series-parallel Systems
2019
Journal of Engineering Science and Technology Review
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Reliability redundancy allocation is a combinatorial optimization problem, and numerous intelligent evolutionary algorithms (e.g., genetic algorithm and ant colony optimization) have been proposed to solve ...
Results show that the proposed novel algorithm can solve a typical model for reliability redundancy allocation, i.e., a non-maintained bi-state series-parallel system with active redundancy and component ...
On the basis of different system redundancy strategies and constraints, the redundancy allocation problem (RAP) for series-parallel systems may consider the following options [1] : (a) active or cold-standby ...
doi:10.25103/jestr.121.15
fatcat:5f5yhc4pkjgtpda5zhwcmxtjca
Efficient optimization of multi-objective redundancy allocation problems in series-parallel systems
2017
Decision Science Letters
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Kim et al. (2004) used genetic algorithms simulation for solving redundancy allocation problems. Onishi et al. (2007) developed an exact solution to solve a series-parallel problem. ...
Nahas et al. (2007) used coupling ant colony and the degraded ceiling algorithm for the redundancy allocation problem of series -parallel systems. ...
doi:10.5267/j.dsl.2016.11.004
fatcat:bzghbzhi4rcrzcwt3rq4i4otq4
Multilevel redundancy allocation using two dimensional arrays encoding and hybrid genetic algorithm
2013
Computers & industrial engineering
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Multilevel redundancy allocation problem (MLRAP) is not only NP-hard, but also qualifies as hierarchy optimization problem. ...
With the popularity of multilevel design in large scale systems, reliability redundancy allocation on multilevel systems is becoming attractive to researchers. ...
Genetic algorithm was used to solve the proposed physical programming based optimization model. ...
doi:10.1016/j.cie.2012.08.008
fatcat:6wtgdhj6bveydgymwo2665fxsa
Reliability Optimization of a k-out-of-n Series-Parallel System with Warm Standby Components
2021
Scientia Iranica. International Journal of Science and Technology
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In this research, a new hybrid model for the redundancy allocation problem (RAP) in a series-parallel configuration with the k-out-of-n subsystem is presented. ...
To solve the proposed model, we used two Genetic Algorithm (GA) and a hybrid GA (HGA) meta-heuristic algorithm with local search. ...
k-out-of-n [2], and/or the combination of series and parallel [3] . The system's reliability may improve by redundancy allocation [3] or reliability allocation [4] . ...
doi:10.24200/sci.2021.56113.4591
fatcat:f6rt7hvjfzgyfoqrii56txtutu
Redundancy allocation problem for k-out-of-n systems with a choice of redundancy strategies
2016
Journal of Industrial Engineering International
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To increase the reliability of a specific system, using redundant components is a common method which is called redundancy allocation problem (RAP). ...
As the optimization of RAP belongs to the NP-hard class of problems, a modified version of genetic algorithm (GA) is also developed. ...
Coit and Smith (1996) , and used a genetic algorithm to solve a RAP problem in a series-parallel kout-of-n system with a multiple component choice and an active redundancy strategy. ...
doi:10.1007/s40092-016-0169-3
fatcat:oovefarvhnaajfpgimu5aw435y
Using NSGA II Algorithm for a Three Objectives Redundancy Allocation Problem with k-out-of-n Sub-Systems
2016
Journal of Optimization in Industrial Engineering
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The reliability of the products and systems may improve using different methods. One of this methods is redundancy allocation problem. ...
In this problem by adding redundant component to sub-systems under some constraints, the reliability improved. In this paper we worked on a three objectives redundancy allocation problem. ...
Garg et al. (2014) solved the bi-objective reliability redundancy allocation problem for series-parallel system where reliability of the system and the corresponding designing cost are considered as two ...
doi:10.22094/joie.2016.224
doaj:dacc15da76c442578440fba229622c36
fatcat:p5sh74e6vfei5c7ja4u6yuyqi4
Models in design for reliability optimisation
2013
AMERICAN JOURNAL OF SCIENTIFIC AND INDUSTRIAL RESEARCH
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Particularly noted was the dominance of redundancy allocation optimisation over other strategies such as reliability allocation optimisation which virtues have not been fully explored. ...
The field is classified into the pertinent existing reliability optimisation strategies and the types of optimisation models employed. The solution methods used are also discussed. ...
The redundancy-reliability allocation problem combines these two strategies. ...
doi:10.5251/ajsir.2013.4.1.95.110
fatcat:nzua4foag5bhvmbtrpn53ydpca
Recent Advances in Optimal Reliability Allocation
2007
IEEE transactions on systems, man and cybernetics. Part A. Systems and humans
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These are called redundancy allocation problems and reliability-redundancy allocation problems, respectively. ...
Recently, much of the effort in optimal reliability design has been placed on general reliability-redundancy allocation problems, rather than redundancy allocation problems. ...
doi:10.1109/tsmca.2006.889476
fatcat:cijp24h3pzdpjg5escfm2wwz2i
A New Biobjective Model to Optimize Integrated Redundancy Allocation and Reliability-Centered Maintenance Problems in a System Using Metaheuristics
2015
Mathematical Problems in Engineering
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A novel integrated model is proposed to optimize the redundancy allocation problem (RAP) and the reliability-centered maintenance (RCM) simultaneously. ...
For nonrepairable components, a redundancy allocation problem is dealt with to determine optimal redundancy strategy and number of redundant components to be implemented in each subsystem. ...
Mathematical Problems in Engineering ...
doi:10.1155/2015/396864
fatcat:bhdrylw5lbdepoklmg6dorqhdu
Application of an Intelligent Hybrid Metaheuristic Algorithm for Multiobjective Redundancy Allocation Problem with Sustainable Maintenance
2021
Mathematical Problems in Engineering
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The present study aimed to optimize the redundancy allocation problem based on sustainable maintenance. ...
In order to optimize this model, a hybrid algorithm based on Whale Optimization Algorithm (WOA), Genetic Algorithm (GA), and Simulated Annealing (SA) is proposed. ...
[14] introduced a redundancy allocation problem with multiple strategy choices in which the concepts of active redundancy and standby redundancy were considered simultaneously. ey used particle swarm ...
doi:10.1155/2021/7709788
fatcat:lilvky3bwzaq7p6tdze5lm3xqy
Solving a Redundancy Allocation Problem by a Hybrid Multi-objective Imperialist Competitive Algorithm
2013
International Journal of Engineering
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A redundancy allocation problem (RAP) is a well-known NP-hard problem including the selection of elements and redundancy levels to maximize the system reliability under various system-level constraints ...
allocation problems. ...
Tabu search meta-heuristic algorithm was used to provide solutions to the system reliability optimization problem of redundancy allocation. ...
doi:10.5829/idosi.ije.2013.26.09c.10
fatcat:ydx67554ljf3vnrwzeimtezibe
Redundancy allocation problem with a mixed strategy for a system with k-out-of-n subsystems and time-dependent failure rates based on Weibull distribution: An optimization via simulation approach
2018
Scientia Iranica. International Journal of Science and Technology
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One of the useful methods in reliability optimization is redundancy allocation problem (RAP). ...
Also, the redundancy policy of the proposed system is considered as mixed strategy and the optimization method was based on the simulation technique to obtain reliability function as implicit function. ...
"Reliability-redundancy allocation problem considering optimal redundancy strategy using parallel genetic algorithm", Reliability Engineering and System Safety, vol. 159, pp. 153-160, (2017). 26. ...
doi:10.24200/sci.2018.20152
fatcat:344ynhwbpnh65dwqyr64dxb3ta
SYSTEM RELIABILITY OPTIMIZATION WITH k-OUT-OF-n SUBSYSTEMS
2000
International Journal of Reliability, Quality and Safety Engineering (IJRQSE)
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Optimal solutions to the redundancy allocation problem are determined for systems designed with multiple k-out-of-n subsystems in series. ...
Unfortunately, available optimization algorithms are inadequate for many of these design problems. ...
Coit and Smith 21 develop a problem-specific genetic algorithm (GA) to analyze series-parallel systems and to determine the design configuration to maximize reliability when there are multiple component ...
doi:10.1142/s0218539300000110
fatcat:c4yl64wx7zhahao5nhjcdt4cqm
Reliability and Cost Optimization of a System with k-out-of-n Configuration and Choice of Decreasing the Components Failure Rates
2020
Scientia Iranica. International Journal of Science and Technology
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Since the redundancy allocation problem belongs to NP-Hard problems, two Non-Dominated Sorting Genetic Algorithm II (NSGA-II) and Non-Dominated Ranked genetic algorithm (NRGA) metaheuristic algorithms ...
This paper presents a new redundancy allocation problem for a system with the k-out-of-n configuration at the subsystems' level with two active and cold standby redundancy strategies. ...
[24] presented a four-phase algorithm to improve reliability in series-parallel systems with redundancy allocation. ...
doi:10.24200/sci.2020.52944.2960
fatcat:qtpjcm6zjvenfi25ymdfijn33a
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