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A Study on the Risk based RAMS Assessment for Railway Rolling Stock Systems

철도차량시스템의 위험기반 RAMS 평가에 관한 연구

Park, Mun-Gyu;Han, Seong-Ho
박문규;한성호

  • Received : 2015.05.30
  • Accepted : 2015.11.02
  • Published : 2015.12.01

Abstract

Rolling stock RAMS is a field of engineering which integrates reliability, availability, maintainability and safety (RAMS) characteristics into an inherent product design property through rolling stock system engineering process. It is implemented to achieve operational objectives successfully, and recently the RAMS has become a rapidly growing engineering discipline because it has a great potential to ensure safety and improve cost effectiveness. However, the Korean rolling stock industry has not yet implemented RAMS management in the rolling stock engineering process, despite the issue having been addressed since the introduction of the KTX. Thus, this paper discusses the processes, methods and techniques for RAMS assessment in three parts. Firstly, it outlines a process of the overall RAMS performance assessment for achieving technical RAMS design criteria. Secondly, it discusses a process for assessing the operational RAM and allocating the RAM. This paper also proposes a model for assessing safety-based risk management, which includes five analytic techniques for identifying the causes and consequences of a system failure. Finally, a case example is provided for the risk assessment of the pneumatic braking device.

Keywords

RAMS (reliability, availability, maintainability and safety);Rolling stock engineering;Risk management;Assessment;Allocation;Safety

References

  1. Ericson, C. A., "Hazard analysis techniques for system safety", Wiley-Interscience, International Conference on, 2008. IEEE, 892-895, 2005.
  2. EN 50126-2, "Railway Applications - The Specification and Demonstration of Reliability, Availability, Maintainability and Safety (RAMS) - Part 3: Guide to the Application of EN 50126-1 for Safety, 2007.
  3. Ting, T. Yue, L. Tao-Tao, Z., Hai-Long, J. & Hai, S., "FTA and FMEA of braking system based on relex 2009. In: Information Systems for Crisis Response and Management (ISCRAM), 2011 International Conference on, 2011. IEEE, 106-112, 2011.
  4. Kim, J. "The Study on FTA of Full Service Brake Equipments for Making Safety about Rolling Stock System", Korea: Seoul National University of Science & Technology, 2008.
  5. Cantos, P. & Campos, J., "Recent changes in the global rail industry: facing the challenge of increased flexibility." 2005.
  6. EN 60300-3-1, "Dependability Management - Part 3-1: Analysis Techniques for Dependability - Guide on Methodology", London: British Standards Institution (BSI), 2004.
  7. EN 50126-1, "Railway applications - The Specification and Demonstration Reliability, Availability, Maintainability and Safety (RAMS) - Part 1: Basic Requirements and Generic Process", London: British Standards Institution (BSI), (1999.
  8. Bonnett, C. F., "Practical railway engineering, World Scientific." 2005.
  9. Profillidis, V. A. "Railway management and engineering", Ashgate Publishing, Ltd. 2007.
  10. Elphick, J., "Railway Systems Engineering Why is Water Wet? In: Railway Signalling and Control Systems (RSCS 2010)", IET Professional Development Course on, 2010. IET, 250-270, 2010.
  11. Hwang, J.-G. & Jo, H.-J., "RAMS management and assessment of railway signaling system through RAM and safety activities", In: Control, Automation and Systems, 2008. ICCAS 2008.
  12. M-G, Park, "RAMS management of Railway systems - Integration of RAMS Management into Systems Engineering", University of Birmingham, 2013.
  13. EN 31010, "Risk Management - Risk Assessment Techniques", London: British Standards Institution (BSI). 2008
  14. Jung, I, S., "Study on the Setting-up & Demonstration of RAMS requirements in Rolling Stock", Seoul National University of Science and Technology, 2009.
  15. EN 50129, "Railway Applications - Communication, Signalling and Processing Systems - Safety related Electronic Systems for Signalling", London: British Standards Institution (BSI), 2003.
  16. Seong-Phil Eo, S.-J. K. a. D.-Y. K. (2010). Establishing RAM Requirement based on BCS model for weapon Systems. Korean Weapon Technical Institution, Vol.1, pp.67-76.
  17. An, M., "A review of design and maintenance for railway safety - the current status and future aspects in the UK railway industry", World Journal of Engineering, Vol.2 (3), pp.10-22, 2005.
  18. EN 60812, "Analysis Techniques for System Reliability - Procedure for Failure Mode and Effects Analysis (FMEA)", London: British Standards Institution (BSI), 2006.
  19. Bitsch, F., "Process Model for the Development of System Requirements Specifications for Railway Systems", 2003.
  20. EN 50128, "Railway Applications - Communication, Signalling and Processing Systems - Software for Railway Control and Protection Systems", London: British Standards Institution (BSI), 2009.
  21. EN 61025, "Fault tree analysis (FTA)" London: British Standards Institution (BSI), 2007.
  22. EN 62502, "Analysis techniques for dependability Event Tree Analysis", London: British Standards Institution (BSI), 2009.

Acknowledgement

Supported by : 국토교통부