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무인 경량전철 가용도 산정 및 검증에 관한 연구

A Study on the Estimation and Verification of the Availability of the Unmanned Light Railway

  • 권상돈 (서울과학기술대학교 철도차량시스템공학과) ;
  • 송보영 (국토교통부 철도운행안전과) ;
  • 이희성 (서울과학기술대학교 철도차량시스템공학과)
  • Kwon, Sang Don (Department of Rolling Stock System, Seoul National University of Science & Technology) ;
  • Song, Bo Young (Ministry of Land Infrastructure and Transport) ;
  • Lee, Hi Sung (Department of Rolling Stock System, Seoul National University of Science & Technology)
  • 투고 : 2018.11.15
  • 심사 : 2019.02.14
  • 발행 : 2019.02.28

초록

Unattended Train operation(UTO) requires higher safety target than other systems, since all train operations are automatic. The system provider to deliver without accident or failure, and the operator to transport passengers without accident by putting all trains supplied, including them, into service. Safety rates without such failures can be represented as indicators of RAMS, among which availability is continuously controllable to achieve the target, with a clear target. Availability is often required by the licensee from the initial stage of the project to demonstrate that the request for proposal (RFP) is usually specified and to maintain separate availability targets at the operational stage. In particular, unlike unmanned operation light rail in complex systems, simple formulas are often presented to facilitate verification at each stage. This paper presents this method of usability calculation in an integrated manner at all levels and analyzes the existing usability values to ensure reliability of the availability formula for integrated use in unmanned light rail systems.

키워드

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Fig. 1. General availability calculation.

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Fig. 2. Suggestions for system availability calculations.

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Fig. 3. Overview of shuttle tain routes.

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Fig. 4. Normal operation mode of shuttle train.

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Fig. 5. Proposal of MTBF and availability by 3rd shuttle train.

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Fig. 6. 120-Days cumulative availability on operational routes.

Table 1. Application examples of availability by route

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Table 2. Application examples of availability by route

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Table 3. Quantitative availability requirements

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Table 4. Availability target value (construction company)

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Table 5. Comparison of availability against train failures(1)

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Table 6. Comparison of availability against train failures(2)

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참고문헌

  1. IEC 62267-2:2011, Railway Applications Automated Urban Guided Transport (AUGT) Safety Requirements - Part 2 : Hazard Analysis at Top System Level, International Electro Technical Commission
  2. KS C IEC 62278:2002, Railway Applications Specification and Demonstration of Reliability, Availability, Maintainability and Safety (RAMS), International Electro Technical Commission
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  5. M. C. Lee, "A Study on Reliability & Availability of Train Detection using Virtual Track Circuit", Department of Railroad Electrical & Signalling Engineering, Graduate School of Railroad, Seoul National University of Science and Technology, 2012.
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  8. H. S. Yun, K. S. Lee, S. K. Ryou and D. I. Yang, "A Study on the RAMS Analysis of Urban Maglev Train Control System", Journal of Korean Society for Railway Vol. 14, No. 6, pp. 515-525, 2011. https://doi.org/10.7782/JKSR.2011.14.6.515
  9. I. S. Chung, K. W. Lee and J. W. Kim, "A Study on RAMS Parameters in the Procurement Requirement for Rolling Stock", Journal of Korean Society for Railway, Vol. 11, No. 4, pp. 371-377, 2008.
  10. C. S. Kim and H. S. Lee, "Reliability Analysis of Electric Door System for EMU", J. Korean Soc. Saf., Vol. 28, No. 8, pp. 52-56, 2013. https://doi.org/10.14346/JKOSOS.2013.28.1.052
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