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Estimation of Straight Line Stability of a Damaged Surface Combatant through Spiral Maneuver Test Model Considering Asymmetry

비대칭성이 고려된 나선형 시험 모델을 통한 손상 수상함의 직진 안정성 추정

  • Ha, Jeong Soo (Department of Naval Architecture, Republic of Korea Naval Academy) ;
  • Jeong, Yeon Hwan (Department of Naval Architecture, Republic of Korea Naval Academy)
  • 하정수 (해군사관학교 조선공학과) ;
  • 정연환 (해군사관학교 조선공학과)
  • Received : 2020.10.15
  • Accepted : 2020.12.18
  • Published : 2020.12.31

Abstract

In this paper, we estimated the straight line stability by performing a 3 degree of freedom spiral test simulation of a intact/damaged surface combatant using the hydrodynamic coefficient obtained through the PMM(Planar motion mechanism) test based on system engineering process. A model ship was ONR Tumblehome and damaged compartment was set on the starboard bow. As a result of conducting a spiral test simulation based on the experimental results of J.Ha (2018), the asymmetric straight line stability due to the damaged compartment was confirmed. In the case of a ship in which the starboard bow was damaged, it was confirmed that it had the characteristic to deflect to the left when going straight. Also, when estimating the straight line stability of a both port and starboard asymmetric surface combatant, a separated equation of motion model that sees the port and starboard as different ships seems suitable.

Keywords

References

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