On constrained reliability maximization using active redundancy in coherent systems with non-overlapping subsystems
DOI:
https://doi.org/10.11121/ijocta.01.2015.00205Keywords:
coherent system, redundancy, reliability optimization, system reliabilityAbstract
The paper investigates a problem of constrained reliability maximization by allocating redundancy and proposes how to solve it for a broad group of complex coherent systems. Redundancy is an effective engineering tool to enhance system reliability to make a system fail-safe. Since adding redundancy increases the cost and complexity of a system design, it should be used wisely. The work considers an exact solution to the problem under resource constraints and finds optimal redundancy numbers. The proposed method can accommodate any number of constraints. Numerical examples have been included. A sensitivity analysis has been carried out to show how sensitive the optimal allocation of redundant components and the gain in system reliability are to the budget allocation.
Downloads
References
Morrison, D. F., The optimum allocation of spare components in systems, Technometrics, 3(3), 399-406 (1961). Crossref
Misra, K.B., Least square approach for system reliability optimization, International Journal of Control, 17(1), 199-207 (1973). Crossref
Shaked, M. and Shanthikumar, J.G., Optimal allocation of resources to nodes of parallel and series systems, Advances in Applied. Probability, 24, 894-914 (1992). Crossref
Boland, P.J., El-Neweihi, E. and Proschan, F., Stochastic order for redundancy allocation in series and parallel systems, Advances in Applied Probability, 24, 161-171 (1992). Crossref
Hsieh, Y-C., A linear approximation for redundant reliability problems with multiple component choices, Computer and Industrial Engineering, 44, 91-103 (2002). Crossref
Liu, G-S., A combination method for reliability - redundancy optimization, Engineering Optimization, 38(4), 485-499 (2006). Crossref
Prasad, V. R., Kuo, W. and Kim, K. O., Maximization of a percentile life of a series system through component redundancy allocation, IIE Transactions, 33(12), 1071-1079 (2001). Crossref
Bhattacharya, D. and Roychowdhury, S., A constrained cost minimizing redundancy allocation problem in coherent systems with non-overlapping subsystems, Advances in Industrial Engineering and Management, 3(3), 1-6 (2014).
Barlow, R.E. and Proschan, F., Statistical Theory of Reliability and Life Testing, To Begin with, Silver Spring, MD (1981).
Downloads
Published
How to Cite
Issue
Section
License
Articles published in IJOCTA are made freely available online immediately upon publication, without subscription barriers to access. All articles published in this journal are licensed under the Creative Commons Attribution 4.0 International License (click here to read the full-text legal code). This broad license was developed to facilitate open access to, and free use of, original works of all types. Applying this standard license to your work will ensure your right to make your work freely and openly available.
Under the Creative Commons Attribution 4.0 International License, authors retain ownership of the copyright for their article, but authors allow anyone to download, reuse, reprint, modify, distribute, and/or copy articles in IJOCTA, so long as the original authors and source are credited.
The readers are free to:
- Share — copy and redistribute the material in any medium or format
- Adapt — remix, transform, and build upon the material
- for any purpose, even commercially.
- The licensor cannot revoke these freedoms as long as you follow the license terms.
under the following terms:
- Attribution — You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
- No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.
This work is licensed under a Creative Commons Attribution 4.0 International License.
