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Characteristics on the response of the stern trawler according to the state of its operation

선미트롤어선의 운항 형태에 따른 거동 특성

  • PARK, Chi-Wan (Department of Fishery Production Graduate School of Global Fisheries Pukyong National University) ;
  • KIM, Jong-Wha (Div. of Marine Production System management, Pukyong National University) ;
  • KIM, Hyong-Seok (Div. of Marine Production System management, Pukyong National University) ;
  • KANG, Il-Kwon (Div. of Marine Production System management, Pukyong National University)
  • 박치완 (부경대학교 글로벌수산대학원 어업생산학과) ;
  • 김종화 (부경대학교 해양생산시스템관리학부) ;
  • 김형석 (부경대학교 해양생산시스템관리학부) ;
  • 강일권 (부경대학교 해양생산시스템관리학부)
  • Received : 2016.10.24
  • Accepted : 2016.11.28
  • Published : 2016.11.30

Abstract

The aim of this research was to the experimental data using statistical and spectral analyzing method to get the motion reponses of a stern trawler in operation states such as drifting, sailing and trawling according to the wave height. In drifting, the significant and the maximum valuer of roll in beam sea increased according to the wave height, but those of pitch decreased. The response and the period of peak of roll in beam sea were increased, but those of pitch decreased. In navigation, the significant and maximum values of roll increased remarkably according to the wave height, but those of pitch changed a little. The response of roll was highest in quartering sea, beam sea and then following sea, but those of pitch was highest in bow sea, head sea and then beam sea in the order of all wave heights. The period of peak of roll due to the wave height and the wave direction changed from 3.8 to 9.9 seconds, and those of pitch changed from 3.3 to 10.4 seconds. In trawling, the significant and maximum values of roll increased a little according to the wave height, but those of pitch increased significantly. The response of roll was highest in beam sea, bow sea and then quartering sea, but those of pitch was highest in head sea, following sea, and then beam sea in the order. The period of peak of roll due to the wave height and the direction changed from 6.6 to 10.9 seconds, and those of pitch changed from 6.7 to 11.2 seconds.

Keywords

Roll;Pitch;Significant and maximum value;Response;Period of peak

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