Journal of the Society of Naval Architects of Korea (대한조선학회논문집)

The Society of Naval Architects of Korea (대한조선학회)
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Evaluation of Seakeeping Performance of an Light Aircraft Carrier

경항모 내항성능 평가 연구

  • Dong-Min Park (Korea Research Institute of Ships & Ocean engineering) ;
  • Min-Guk Seo (Korea Research Institute of Ships & Ocean engineering) ;
  • Hyungdo Song (Korea Research Institute of Ships & Ocean engineering) ;
  • Seok-Kyu Cho (Korea Research Institute of Ships & Ocean engineering) ;
  • Sa Young Hong (Korea Research Institute of Ships & Ocean engineering)
  • 박동민 (한국해양과학기술원 부설 선박해양플랜트연구소) ;
  • 서민국 (한국해양과학기술원 부설 선박해양플랜트연구소) ;
  • 송형도 (한국해양과학기술원 부설 선박해양플랜트연구소) ;
  • 조석규 (한국해양과학기술원 부설 선박해양플랜트연구소) ;
  • 홍사영 (한국해양과학기술원 부설 선박해양플랜트연구소)
  • Received : 2024.06.16
  • Accepted : 2024.07.19
  • Published : 2024.10.20
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Abstract

In this study, a combined seakeeping performance evaluation method has been developed for the design purpose of the light aircraft carrier CVX of Korean Navy. A frequency domain analysis method was developed for evaluation of safe operating envelope up to sea state 6, while a time domain analysis method was developed for survival condition of sea state 7 and higher. The frequency-domain solver AdFLOW-Navy was developed by adding empirical formula of roll damping and fin-stabilizer to the existing AdFLOW by KRISO, which was based on the three-dimensional higher order boundary element method (HOBEM). For the estimation of the roll damping coefficient, a two-dimensional cross-section was automatically extracted from the three-dimensional panel, and the roll damping coefficient was analyzed for the two-dimensional cross-section. As for the time domain analysis method, KIMAPS-Navy was developed by improving and expanding the KIMAPS series developed by KRISO which is based on the impulse response function by utilizing the hydrodynamic coefficients obtained from the AdFLOW-Navy. In addition, a weakly nonlinear analysis approach was applied to analyze highly nonlinear motion under heavy sea states. Finally numeraical analysis results were compared with model tests, which showed practical usefulness of the present combined seakeeping analysis approach.

Keywords

Acknowledgement

본 논문은 국방신속획득기술연구원으로부터 연구비를 지원(계약번호:UC200006D)받아 선박해양플랜트연구소에서 "함재기 이·착함 시뮬레이션 기술"(PGS4280)로 수행된 연구결과입니다. SMP 해석 결과는 Gibbs & Cox에서 제공하였으며 WISH는 서울대학교 김용환 교수님 연구실에서 제공받았습니다.

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