규칙파중 시간영역 스트립이론을 이용한 비선형 유탄성 해석

Nonlinear Hydroelastic Analysis Using a Time-domain Strip Theory m Regular Waves

  • CHO IL-HYOUNG (College of Ocean Science, Cheju National University) ;
  • HAN SUNG-KON (Structure R&D Team, Daewoo Shipbuilding & Marine Engineering Co.) ;
  • KWON SEUNG-MIN (Structure R&D Team, Daewoo Shipbuilding & Marine Engineering Co.)
  • 발행 : 2005.08.01

초록

A nonlinear time-domain strip theory for vertical wave loads and ship responses is to be investigated. The hydrodynamic memory effect is approximated by a higher order differential equation without convolution. The ship is modeled as a non-uniform Timoshenko beam. Numerical calculations are presented for the S175 Containership translating with the forward speed in regular waves. The approach described in this paper can be used in evaluating ship motions and wave loads in extreme wave conditions and validating nonlinear phenomena in ship design.

키워드

참고문헌

  1. 박성환, 이재경, 오상헌, 송재명, 권승민 (2002). '선체 휘핑 해석 전용 프로그램이 개발', 대한조선학회 논문집, 제39권, 제3호, pp 64-74
  2. Hong, D.C. (1987). 'On the Improved Green Integral Equation Applied to the Water-wave Radiation-diffraction Problem' ,대한조선학회 논문집, 제24권,제1호, pp 1-8
  3. Bishop, RED. And Price, W.G. (1979). Hydroelasticity of Ships, Cambridge: Cambridge University Press
  4. Cummins, W.E. (1962). 'The Impulse Response Function and Ship Motions', Schiffstechnik Band, Vol 9, pp 101-109
  5. Myklestad, N.O. (1944). 'A New Method of Calculating Normal Modes of Uncoupled Bending Vibration of Airplane Wings and Other Types of Beam', J. Aeron. Sci., Vol 11, pp 153-162 https://doi.org/10.2514/8.11116
  6. Salvesen, N., Tuck, E.O., Faltinsen, O. (1970). 'Ship Motions and Sea Loads', Trans SNAME, Vol 78, pp 250-287
  7. Soding, H. (1982). Leckstabilitat im Seegang, Report 429 of the Institut fur Schiffbau Hamburg
  8. Wu, M. and Hermundstad, .O.A. (2002). 'Time-domain Simulation of Wave-induced Nonlinear Motions and Loads and Its Applications in Ship Design', Marine Structure, Vol 15, pp 561-597 https://doi.org/10.1016/S0951-8339(02)00003-5
  9. Xia, J. and Wang, Z. (1997). 'Time-domain Hydroelasticity Theory of Ships Responding to Waves', J. Ships Res., Vol 41, pp 286-300
  10. Xia, J., Wang, Z, Jensen, J.J. (1998). 'Non-linear Wave Loads and Ship Responses by a Time-domain Strip Theory', Marine Structure, Vol 11, pp 101-123 https://doi.org/10.1016/S0951-8339(98)00008-2