Availability and Profit Analysis of a Series-Parallel System

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Abdullahi Sanusi
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Availability and Profit Analysis of a Series-Parallel System

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Abstract

This paper presents the study of availability and profit analysis of a series-parallel system consisting of four units A, B, C and D arranged in series in which subsystem D consist of three units arranged in parallel. The system works if any of A, B, C or D work. The Markovian approach was adopted to model the system behaviour with the assumption that the failure and repair rates of each subsystem follow exponential distribution. The differential equations that described the system were formulated to analyse the probability for each state. These equations were solved recursively to obtain explicit expressions for steady-state availability, busy period of repairman and profit function. The computed results are demonstrated by graphs. The results show that increase in repair rate increases the availability and associated profit. The results of the designed model are beneficial to reliability and maintenance managers.

References

12 Cites in Article
  1. M Gahlot,V Singh,H Ayagi,C Goel (2018). Performance assessmentof repairable system in series configuration under differenttypes of failure and repair policies using copula linguistics.
  2. M Kadyan,Ramesh Kumar (2015). Availability and profit analysis of a feeding system in sugar industry.
  3. N Kumar,S Pant,S Singh (2017). Availability and cost analysis of an engineering system involving subsystems in series configuration.
  4. Subhash Malik,Puran Tewari (2018). Performance modeling and maintenance priorities decision for the water flow system of a coal-based thermal power plant.
  5. Ram Niwas,Harish Garg (2018). An approach for analyzing the reliability and profit of an industrial system based on the cost free warranty policy.
  6. M Rao,V Naikan (2015). A system dynamics model for transientavailability modeling of repairable redundant systems.
  7. A Sanusi,I Yusuf,B Y Mamuda (2020). Performance evaluation of an industrial configured as series-parallel system.
  8. V Singh,Hamisu Ayagi (2018). Stochastic analysis of a complex system under preemptive resume repair policy using Gumbel-Hougaard family copula.
  9. V Singh,Jyoti Gulati,D Rawal,C Goel (2016). Performance Analysis of Complex System in Series Configuration Under Different Failure and Repair Discipline Using Copula.
  10. Lechang Yang,Yanling Guo,Qiang Wang (2019). Reliability Assessment of a Hierarchical System Subjected to Inconsistent Priors and Multilevel Data.
  11. Ibrahim Yusuf (2015). Availability modelling and evaluation of a repairable system subject to minor deterioration under imperfect repairs.
  12. I Yusuf (2016). Reliability modeling of a parallel system with a supporting device and two types preventive maintenance.

Funding

No external funding was declared for this work.

Conflict of Interest

The authors declare no conflict of interest.

Ethical Approval

No ethics committee approval was required for this article type.

Data Availability

Not applicable for this article.

How to Cite This Article

abdullahi_sanusi. 2020. \u201cAvailability and Profit Analysis of a Series-Parallel System\u201d. Global Journal of Science Frontier Research - F: Mathematics & Decision GJSFR-F Volume 20 (GJSFR Volume 20 Issue F8): .

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Issue Cover
GJSFR Volume 20 Issue F8
Pg. 45- 55
Journal Specifications

Crossref Journal DOI 10.17406/GJSFR

Print ISSN 0975-5896

e-ISSN 2249-4626

Keywords
Classification
GJSFR-F Classification: MSC 2010: 33E20
Version of record

v1.2

Issue date

December 15, 2020

Language
en
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This paper presents the study of availability and profit analysis of a series-parallel system consisting of four units A, B, C and D arranged in series in which subsystem D consist of three units arranged in parallel. The system works if any of A, B, C or D work. The Markovian approach was adopted to model the system behaviour with the assumption that the failure and repair rates of each subsystem follow exponential distribution. The differential equations that described the system were formulated to analyse the probability for each state. These equations were solved recursively to obtain explicit expressions for steady-state availability, busy period of repairman and profit function. The computed results are demonstrated by graphs. The results show that increase in repair rate increases the availability and associated profit. The results of the designed model are beneficial to reliability and maintenance managers.

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Availability and Profit Analysis of a Series-Parallel System

Abdullahi Sanusi
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