Reliability Improvement in the Traction System of Tanzania Standard Gauge Railway

Authors

  • YUSUFU KATUGA DAR ES SALAAM INSTITUTE OF TECHNOLOGY
  • Ramadhani Kivugo DAR ES SALAAM INSTITUTE OF TECHNOLOGY
  • Pius Chombo DAR ES SALAAM INSTITUTE OF TECHNOLOGY

DOI:

https://doi.org/10.52339/tjet.v42i4.932

Keywords:

Traction Motors , Standard Gauge Railways , Mean Time Before Failure, Mean Time to Failure, Reliability

Abstract

In recent years, many African governments have been developing Standard Gauge Railway (SGR) to replace the old after becoming absolute, inefficient Meter Gauge System (MGR) to carry more loads at high mileage and speed while combating the oil and environmental crises. With the increase of SGR, the amount of traction systems has grown sharply, the service life of the traction system has increased gradually, and the components of the vehicle traction system have become worn and aged as a result. While Tanzania is transitioning to SGR with its gradually increasing traction systems, reliability improvement becomes a key for the sustainability of its high-speed train services. This paper, therefore, aims to improve the reliability of traction motors used in Tanzania’s SGR. Firstly, the factors affecting the reliability of the traction system of Tanzania’s SGR and their significance are evaluated. Secondly, the computerized maintenance management system (CMMS) is designed to streamline and automate the maintenance management processes of the traction system of Tanzania’s SGR. Finally, a regression model is established to forecast the uptime based on the established factors. The obtained uptime hours were predicted in order to compute the reliability of the traction motor and its criticality in operation. Critical factors for improving reliability have also been highlighted. These findings play vital roles in establishing the fundamentals of factors that affect reliability as well as strategies and countermeasures to extend the operational life of the traction motors cost-effectively.

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Author Biographies

Ramadhani Kivugo, DAR ES SALAAM INSTITUTE OF TECHNOLOGY

Department of Mechanical Engineering, Dar es Salaam Institute of Technology, P.O. Box 2958, Dar es Salaam

Pius Chombo, DAR ES SALAAM INSTITUTE OF TECHNOLOGY

Department of Electrical Engineering, Dar es Salaam Institute of Technology, P.O. Box 2958, Dar es Salaam

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Published

2024-02-23

How to Cite

KATUGA, Y., Kivugo, R. ., & Chombo, P. . (2024). Reliability Improvement in the Traction System of Tanzania Standard Gauge Railway. Tanzania Journal of Engineering and Technology, 42(4), 108-117. https://doi.org/10.52339/tjet.v42i4.932
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