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.