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Case Study: Streamlining RAMS Compliance for Rail

  • amirsegal8
  • 11 hours ago
  • 2 min read

Background

Rail programs operate under strict RAMS and functional-safety requirements. Standards such as EN 50126 and EN 50129 drive disciplined evidence: reliability prediction, availability/maintainability planning, and quantitative safety demonstrations.


Company Overview

A prominent engineering company leading a rail line project including rail signaling, stations power, IT, PA, CCTV, AFC, fire detection and more...


Challenges

The company needs to provide:

  • RAM Analysis: Perform detailed analysis to minimize service affecting failures and comply with availability requirements.

  • Safety Analysis: Identify hazards, single points of failure, and calculate probability of severe safety events.

  • Compliance: Achieve and demonstrate compliance with rigorous rail safety standards (EN 50126/50128/50129).

Solution Implementation


  • RAM Analysis: Detailed System level RAM analysis was conducted using BQR software:

    • fiXtress® for MTBF prediction.

    • FMEA / FMECA and Diagnostics Analysis for identification of service affecting events and their detection and mitigation.

    • RBD for MTBCF, MTTR and Availability calculations accounting for redundancies.

    • apmOptimizer® for spare parts optimization related to system availability and no shortage probability.

  • Safety Analysis: Safety analysis was conducted using:

    • FMEA / FMECA and Diagnostics Analysis for identification of safety related failure modes, their detection and mitigation

    • FTA for probability calculation of safety events, and finding the minimal number of events that lead to them.

Results

Using BQR software for the analyses, the company was able to:

  • Conduct detailed and efficient RAMS analysis, achieve compliance with the customer requirements as well as with EN 50126 and EN 50129 standards.

  • Save money by using the recommended spare parts.

  • Reuse project data as basis for future projects.


Conclusion

BQR software was successfully used for RAMS analysis of a rail project, helping the company to achieve the customer and regulatory requirements.



to learn how BQR solutions can streamline your RAMS and System Engineering needs.

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