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Rolling Motion Simulation in the Time Domain and Ship Motion Experiment for Algorithm Verification for Fishing Vessel Capsizing Alarm Systems

어선전복경보시스템 알고리즘 검증을 위한 어선 횡동요 시험 및 시간영역 횡동요 시뮬레이션

  • Yang, Young-Jun (Global Core Research Center for Ships and offshore Plants, Pusan National University) ;
  • Kwon, Soo-Yeon (Korea Ship Safety Technology Authority)
  • 양영준 (부산대학교 조선해양플랜트글로벌핵심연구센터) ;
  • 권수연 (선박안전기술공단)
  • Received : 2017.12.04
  • Accepted : 2017.12.28
  • Published : 2017.12.31

Abstract

This study contributes to deepening understand of the characteristics of fishing vessel rolling motions to improve the development of capsizing alarm systems. A time domain rolling motion simulation was performed. In order to verify capsizing alarm systems, it is necessary to carry out experiments assuming a capsizing situation and perform actual fishing vessel measurements, but these tasks are impossible due to the danger of such a situation. However, in many capsizing accidents, a close connection with rolling motion was found. Accordingly, the rolling motion of a fishing boat, which is the core of a fishing vessel capsizing alarm system, has been accurately measured and a time domain based on a rolling motion simulation has been performed. This information was used to verify the algorithm for a capsizing alarm system. Firstly, the characteristics of rolling motion were measured through a motion experiment. For small vessels such as fishing vessels, it was difficult to interpret viscosity due to analytical methods including CFD and potential codes. Therefore, an experiment was carried out focusing on rolling motion and a rolling mode RAO was derived.

Acknowledgement

Supported by : 한국연구재단

References

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