Name
Title | ||
|---|---|---|
A bi-objective model to optimize reliability and cost of system with a choice of redundancy strategies |
Abstract | ||
|---|---|---|
Reliability problems are an important type of optimization problems that are motivated by different needs of real-world applications such as telecommunication systems, transformation systems, and electrical systems, so on. This paper studies a special type of these problems which is called redundancy allocation problem (RAP) and develops a bi-objective RAP (BORAP). The model includes non-repairable series-parallel systems in which the redundancy strategy is considered as a decision variable for individual subsystems. The objective functions of the model are (1) maximizing system reliability and (2) minimizing the system cost. Meanwhile, subject to system-level constraint, the best redundancy strategy among active or cold-standby, component type, and the redundancy level for each subsystem should be determined. To have a more practical model, we have also considered non-constant component hazard functions and imperfect switching of cold-standby redundant component. To solve the model, since RAP belong to the NP-hard class of the optimization problems, two effective multi-objective metaheuristic algorithms named non-dominated sorting genetic algorithms (NSGA-II) and multi-objective particle swarm optimization (MOPSO) are proposed. Finally, the performance of the algorithms is analyzed on a typical case and conclusions are demonstrated. |
Year | DOI | Venue |
|---|---|---|
2012 | 10.1016/j.cie.2012.02.004 | Computers & Industrial Engineering |
Keywords | Field | DocType |
important type,component type,redundancy strategy,bi-objective model,cold-standby redundant component,redundancy allocation problem,optimization problem,multi-objective particle swarm optimization,practical model,redundancy level,bi-objective rap | Particle swarm optimization,Mathematical optimization,Imperfect,Component type,Sorting,Redundancy (engineering),Optimization problem,Genetic algorithm,Mathematics,Metaheuristic | Journal |
Volume | Issue | ISSN |
63 | 1 | 0360-8352 |
Citations | PageRank | References |
40 | 1.19 | 15 |
Authors | ||
4 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Amirhossain Chambari | 1 | 71 | 2.39 |
| Seyed Habib A. Rahmati | 2 | 165 | 7.56 |
| Amir Abbas Najafi | 3 | 153 | 13.32 |
| Aida Karimi | 4 | 66 | 1.98 |