한국항해항만학회지 (Journal of Navigation and Port Research)

  • 제39권3호
  • /
  • Pages.149-156
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  • 2015
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  • 1598-5725(pISSN)
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  • 2093-8470(eISSN)
한국항해항만학회 (Korean Institute of Navigation and Port Research)
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Dynamic Positioning 선박들의 사고사례 분석

An Analysis on Incident Cases of Dynamic Positioning Vessels

  • 투고 : 2015.04.23
  • 심사 : 2015.06.18
  • 발행 : 2015.06.30
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⟨ 이전 논문 다음 논문 ⟩

초록

Dynamic Positioning System(DPS)은 동력, DP control 장치, DP 컴퓨터, 위치참조시스템(PRS), 센서, thruster 시스템 및 DP 운용자(DPO) 7가지로 구성되어 있다. DP 선박은 이들 구성요소들에 문제가 발생하면 그 기능을 상실할 수 있는데 이러한 DP 선박의 위치손실사고(Loss of Position, LOP)는 선주가 자발적으로 매년 IMCA에 보고하고 있다. 본 연구에서는 2001~2010년까지 10년 동안 IMCA 보고된 DP 선박 관련사고 612건에 대한 분석을 바탕으로 DPS의 7가지 구성요소와 관련된 사고 원인을 파악하고 이들 중 높은 비율을 차지하는 요인의 정성적, 정량적 분석을 통한 DP 선박의 안전운항 방안을 모색하고자 한다. 10년 평균 가장 높은 비율을 차지한 DPS 사고원인 요소는 PRS였다. 이를 전문가들의 브레인스토밍을 통해 작성된 flowchart를 바탕으로 베이지안 네트워크 분석을 시행한 결과 PRS 각 요소별 조건부 확률을 확인할 수 있었다. DP 선박의 drive off를 발생시키는데 주요한 영향을 미치는 것은 DGPS, microwave radar 및 HPR 이었고 DGPS에 주요한 영향을 미치는 에러 요인은 signal blocked, electric components failure, relative mode error 및 signal weak or fail이라는 것도 확인할 수 있었다.

The Dynamic Positioning System consists of 7 elements which are namely Power system, Human machine interface, DP Computer, Position Reference System(PRS), Sensors, Thruster system and DP Operator. Incidents like loss of position(LOP) on DP vessel usually occur due to errors in these 7 elements. The purpose of this study is to find out safety operation method of DP vessel through qualitative and quantitative analyze of DP LOP incidents which are submitted to IMCA every year. The 612 DP LOP incidents submitted from 2001 to 2010 were analyzed to find out the main cause of the incidents and its rate among other causes. Consequently, the highest rate of incidents involving DP elements are PRS errors. DP computer, Power system, Human error and thruster system came next. The PRS has been analyzed and a flowchart was drawn through expert brainstorming. Also, the conditional probability has been analyzed through Bayesian Networks based on this flowchart. Consequentially, the main causes of drive off incidents were DGPS, microwave radar and HPR. Also, this study identified the main causes of DGPS errors through Bayesian Networks. These causes are signal blocked, electric components failure, relative mode error, signal weak or fail.

키워드

참고문헌

  1. American Bureau of Shipping(2013), "Guide for Dynamic Positioning Systems", Houston : Author.
  2. Chae, C. J.(2014), Practical Operation Introduction of Dynamic Positioning System, Hea Gyang press, pp. 38-55, p. 61, pp. 163-165, pp. 156-172.
  3. Hauff, K. S.(2014), "Analysis of Loss of Position Incidents for Dynamically operated Vessels", p. 27.
  4. International Maritime Organization, IMO(1994), "Guidelines for Vessels with Dynamic Positioning Systems", MSC/Circ 645, London : Author.
  5. International Maritime Contractor's Association(2003), Dynamic Positioning Station Keeping Incidents, Incidents reported for 2001(DPSI 12), IMCA M 169.
  6. International Maritime Contractor's Association(2004), Dynamic Positioning Station Keeping Incidents, Incidents reported for 2002(DPSI 13), IMCA M 173.
  7. International Maritime Contractor's Association(2005), Dynamic Positioning Station Keeping Incidents, Incidents reported for 2003(DPSI 14), IMCA M 177.
  8. International Maritime Contractor's Association(2006), Dynamic Positioning Station Keeping Incidents, Incidents reported for 2004(DPSI 15), IMCA M 183.
  9. International Maritime Contractor's Association(2007), Dynamic Positioning Station Keeping Incidents, Incidents reported for 2005(DPSI 16), IMCA M 186.
  10. International Maritime Contractor's Association(2008), Dynamic Positioning Station Keeping Incidents, Incidents reported for 2006(DPSI 17), IMCA M 192.
  11. International Maritime Contractor's Association(2009), Dynamic Positioning Station Keeping Incidents, Incidents reported for 2007(DPSI 18), IMCA M 198.
  12. IMCA(2010), Dynamic Positioning Station Keeping Incidents, Incidents reported for 2008(DPSI 19), IMCA M 207.
  13. International Maritime Contractor's Association(2011), Dynamic Positioning Station Keeping Incidents, Incidents reported for 2009(DPSI 20), IMCA M 211.
  14. International Maritime Contractor's Association(2012), Dynamic Positioning Station Keeping Incidents, Incidents reported for 2010(DPSI 21), IMCA M 218.
  15. Shi, Phillips and, Martinez (2005), "Case Study of DP Vessels Performing SIMOPS", DYNAMIC POSITIONING CONFERENCE, p. 2.
  16. Yim, J. B. (2009), "Development of Quantitative Risk Assessment Methodology for the Maritime Transportation Accident of Merchant Ship", KINPR Press, Vol. 33, pp. 9-19.

피인용 문헌

  1. A Study on Human Error of DP Vessels LOP Incidents vol.21, pp.5, 2015, https://doi.org/10.7837/kosomes.2015.21.5.515