Skip to main content
Log in

Availability optimization of a series system with multiple repairable load sharing subsystems considering redundancy and repair facility allocation

  • Original Article
  • Published:
International Journal of System Assurance Engineering and Management Aims and scope Submit manuscript

Abstract

Redundancy technique is considered as a way to enhance the reliability and availability of a system. This paper models availability of a repairable system with multiple subsystems in which the involved components follow the load sharing strategy. In redundancy allocation problems, the redundancy level is just considered, whereas, in this paper, the number of repair facility (repairman) is added to the decision variables. The goal is to find the optimal number of repairmen and redundant components in each subsystem for optimization of availability subject to weight, cost and volume constraints. The main contribution of this study is to present a straightforward model for availability optimization of a series system with multiple load sharing subsystems. Two types of decision variables (i.e., redundancy level and the number of repairmen) are directly located into objective function. The proposed model belongs to nonlinear programming. Due to complexity of the objective function, it is very severe to code the model in typical applications such as GAMS or LINGO. A particle swarm optimization algorithm is proposed to solve the problems related to the model. Finally, computational results of three assumed cases with various subsystems are illustrated to prove the efficiency of the proposed algorithm.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Subscribe and save

Springer+ Basic
EUR 32.99 /Month
  • Get 10 units per month
  • Download Article/Chapter or Ebook
  • 1 Unit = 1 Article or 1 Chapter
  • Cancel anytime
Subscribe now

Buy Now

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7
Fig. 8

Similar content being viewed by others

References

Download references

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Ali A. Yahyatabar Arabi.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Arabi, A.A.Y., Jahromi, A.E. Availability optimization of a series system with multiple repairable load sharing subsystems considering redundancy and repair facility allocation. Int J Syst Assur Eng Manag 4, 262–274 (2013). https://doi.org/10.1007/s13198-013-0182-5

Download citation

  • Received:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s13198-013-0182-5

Keywords

Navigation