한국해양환경ㆍ에너지학회지 (Journal of the Korean Society for Marine Environment & Energy)

  • 제17권3호
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  • Pages.198-204
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  • 2014
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  • 2288-0089(pISSN)
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  • 2288-081X(eISSN)
한국해양환경•에너지학회 (The Korean Society for Marine Environment and Energy)
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사고선박 예인력 계산을 위한 공기저항 간편 추정법 연구

A Study on the Simplified Prediction Method of Air Resistance for Towing Force Calculation of Disabled Ships

  • 김은찬 (한국해양과학기술원 부설 선박해양플랜트연구소) ;
  • 최혁진 (한국해양과학기술원 부설 선박해양플랜트연구소)
  • 투고 : 2014.05.13
  • 심사 : 2014.06.16
  • 발행 : 2014.08.25
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초록

바다를 항해하는 선박은 수면 상부 선체가 공기저항을 받게 된다. 이 공기저항은 수면 상부 선체의 형상, 선속, 풍속 그리고 풍향의 영향을 받는다. 공기저항을 추정하는 실험적인 또는 통계적인 방법은 사고 선박의 예인력을 계산하는 중요한 절차 가운데 하나이다. 본 논문에서는 수면 상부 선체의 투영면적과 선속과 풍속과 풍향을 변수로 사용하여, 실험 또는 통계 분석 방법으로 공기저항을 간편하게 추정하는 방법을 보여주었다. 이 방법들은 기존의 사고선박 예인력 추정을 위한 전산 프로그램에 적용하였다.

Ships sailing the seas encounter air resistance. The air resistance depends on the shape of the above-water hull, the ship speed, the wind speed and wind direction. The experimental or statistical methods which are used to predict the air resistance are one of the essential procedures of the calculation of the towing force of the disabled ships. This paper shows simplified air resistance prediction method using the variables of the projected area of the above-water hull, the speed of the ship, the wind speed and its direction. These methods have been applied to the existing computer program which had been set up to predict the towing force of the disabled ships.

키워드

참고문헌

  1. Blendermann, W., 1990-1991, "Chapter 3.1 External Forces, Wind Forces of Manoeuvring Technical Manual", Schiff & Hafen 1990:2, 1990:3, 1991:4.
  2. Choi, H.J. and Kim, E.C., 2012, Development of the Ship Resistance Calculation Program for Prediction of Towing Forces for damaged Ships, Journal of the Korean Society for Marine Environment & Energy, Vol.15, No.2 (Korean) https://doi.org/10.7846/JKOSMEE.2012.15.2.150
  3. Hughes, G., 1930, Model Experiments on the Wind Resistance of Ships, Trans. INA.
  4. Isherwood R.M., 1972, Wind Resistance of Merchant Ships, Trans. RINA.
  5. ISO, 2002, Guidelines for the Assessment of Speed and Power Performance by Analysis of Speed Trial Data, International Standard ISO 15016.
  6. ITTC, 1978. Report of Performance Committee, Proceedings 15th ITTC.
  7. Kim, E.C., Choi, H.J. and Lee, S.G., 2013, A Study on the Hull Resistance Prediction Methods of Barge Ship for Towing Force Calculation of Disabled Ships, Journal of the Korean Society for Marine Environment & Energy, Vol.16, No.3 (Korean). https://doi.org/10.7846/JKOSMEE.2013.16.3.211
  8. Taylor, D.W., 1943, The Speed and Power of Ships, Second Version.

피인용 문헌

  1. Development of Prediction Program for the Towing Condition Associated with Various Towing Operations of a Disabled Ship vol.17, pp.4, 2014, https://doi.org/10.7846/JKOSMEE.2014.17.4.318
  2. Development of Resistance Prediction Method for the Effect of Drifting Angle at the Towing Operation of a Disabled Ship vol.18, pp.4, 2015, https://doi.org/10.7846/JKOSMEE.2015.18.4.298
  3. Development of Prediction Program of Added Resistance Due to Waves at the Towing Condition of a Disabled Ship Using ISO 15016 Analysis Method vol.19, pp.2, 2016, https://doi.org/10.7846/JKOSMEE.2016.19.2.159
  4. A Study on Database Concept of the Optimum Safe Routing Decision Support System Considering Marine Environment and Safety Regulations vol.20, pp.4, 2017, https://doi.org/10.7846/JKOSMEE.2017.20.4.240