Numerical Study on the Local Motion of an A-frame for Deep Sea ROV Mother Ship in Irregular Waves

심해잠수정 모선의 A-프레임 시간영역 국부운동해석

  • Hong, Do-Chun (Center for Advanced Transportation Vehicles, Chungnam National University) ;
  • Lee, Pan-Mook (Korea Research Institut of Ship and Ocean Engineering, KORDI)
  • 홍도천 (충남대 첨단수송체연구소) ;
  • 이판묵 (한국해양연구원 해양개발시스템연구본부)
  • Published : 2003.05.23

Abstract

The local motion at the top of an A-frame fixed on a research vessel for deep sea ROV floating in irregular waves is studied in the time-domain. The motion is analyzed in the time-domain using the convolution integral of the radiation forces. The memory effect functions and infinite frequency added masses are obtained from the solution of the three dimensional improved Green integral equation in the frequency domain by making use of the Fourier transformation.

Keywords