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Evaluation of Seakeeping Performance for an Amphibious Vehicle in Regular Head Waves Using Scaled Model

축소 모형을 활용한 선수 규칙파 중 수륙양용장갑차의 내항 성능 평가

  • Youngmin Heo (Ground Technology Research Institute, Agency for Defense Development) ;
  • Myungjun Jeon (Maritime Technology Research Institute, Agency for Defense Development) ;
  • Hyeon Kyu Yoon (Department of Smart Ocean Mobility Engineering, Changwon National University)
  • 허영민 (국방과학연구소 지상기술연구원) ;
  • 전명준 (국방과학연구소 해양기술연구원) ;
  • 윤현규 (국립창원대학교 스마트오션모빌리티공학과)
  • Received : 2023.12.12
  • Accepted : 2024.02.09
  • Published : 2024.04.20

Abstract

In the present study, seakeeping performance for an amphibious vehicle in regular head waves was analyzed and evaluated experimentally and numerically. First, seakeeping tests were performed to confirm the vehicle's motion response of heave, pitch motion and vertical acceleration in restricted wavelength ratio conditions for a simplified vehicle shape. Numerical analyses were also conducted for a simplified vehicle shape to validate the numerical solver. To simulate the vehicle's motions, multi-degrees of freedom were calculated by a dynamic fluid-body interaction solver in STAR-CCM+. Comparison between numerical and experimental results was carried out for a simplified vehicle shape. Numerical results are in good agreement with experimental results. Second, numerical analyses were performed for a detailed vehicle shape considering seaway wavelength conditions. The seakeeping performance for an amphibious vehicle was evaluated by comparing with the existing ship's seakeeping performance standards.

Keywords

Acknowledgement

본 연구는 2023년 정부의 재원으로 수행된 연구 결과임

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