Numerical and experimental analysis of hydroelastic responses of a high-speed trimaran in oblique irregular waves
0
조회
0
다운로드
0
인용
0
참고문헌
키워드
초록
Investigation of hydroelastic responses of high-speed vessels in irregular sea state is of major interest in naval applications. A three dimensional nonlinear time-domain hydroelastic method in oblique irregular waves is developed, in which the nonlinear hydrostatic restoring force caused by instantaneous wetted surface and slamming force are considered. In order to solve the two technical problems caused by irregular sea state, the time-domain retardation function and Proportional, Integral and Derivative (PID) autopilot model are applied respectively. Besides, segmented model tests of a high-speed trimaran in oblique waves are performed. An oblique wave testing system for trimarans is designed and assembled. The measured results of main hull and cross-decks are analyzed, and the differences in distribution of load responses between trimarans and monohull ships are discussed. Finally, from the comparisons, it is confirmed that the present concept for dealing with nonlinear hydroelastic responses of ships in oblique irregular waves is reliable and accurate.
Abstract
Investigation of hydroelastic responses of high-speed vessels in irregular sea state is of major interest in naval applications. A three dimensional nonlinear time-domain hydroelastic method in oblique irregular waves is developed, in which the nonlinear hydrostatic restoring force caused by instantaneous wetted surface and slamming force are considered. In order to solve the two technical problems caused by irregular sea state, the time-domain retardation function and Proportional, Integral and Derivative (PID) autopilot model are applied respectively. Besides, segmented model tests of a high-speed trimaran in oblique waves are performed. An oblique wave testing system for trimarans is designed and assembled. The measured results of main hull and cross-decks are analyzed, and the differences in distribution of load responses between trimarans and monohull ships are discussed. Finally, from the comparisons, it is confirmed that the present concept for dealing with nonlinear hydroelastic responses of ships in oblique irregular waves is reliable and accurate.
참고문헌 (30)
- Bingham, A. E., "Motions and loads of a trimaran traveling in waves", Proc. 6th International Conference on Fast Sea Transportations, pp.167~176 (2001)
- Cao, Y. S., "A procedure for evaluation, assessment and improvement of added mass and radiation damping of floating structures", The 27th International Conference on Offshore Mechanics and Arctic Engineering (2008)
- Chen, Z. Y., "A nonlinear hydroelastic method considering wave memory effect for ship load responses in irregular waves", J. Cent. S. Univ, 24, pp.2058~2070 (2017)
- Chen, Z. Y., "Time-domain numerical and segmented ship model experimental analyses of hydroelastic responses of a large container ship in oblique regular waves", Appl. Ocean Res, 67, pp.78~93 (2017)
- Chen, X. J., "Second-order hydroelastic analysis of afloating plate in multidirectional", Int. J. Non Lin. Mech, 41, pp.1206~1218 (2006)
- Cheng, Y., "Hydroelastic analysis of oblique irregular waves with a pontoon-type VLFS edged with dual inclined perforated plates", Mar. Struct, 49, pp.31~57 (2016)
- Cummins, W. E., "The impulse response function and ship motions", Schiffstechnik, 9, pp.101~109 (1962)
- Fukasawa, T., "On the numerical time integration method of nonlinearequations for ship motions and waves loads in oblique waves", J. Soc. Nav. Archit, 167, pp.69~79 (1990)
- Hampshire, J., "Trimaran structural design and assessment", Des.Oper. Trimaran Ships, pp.55~61 (2004)
- Hu, J. J., "Wave-induced loads forecast and design loads determine based on the model test of a trimaran", Proceedings of the Conference of China Steel Structure Association on Marine Steel Structure Branch, pp.61~69 (2010)
- 임홍일, "Hydroelastic response of 19,000 TEU class ultra large container ship with novel mobile deckhouse for maximizing cargo capacity", International Journal of Naval Architecture and Ocean Engineering, 9(3), pp.339~349 (2017), 대한조선학회
- Ji, X. R., "Multi-directional random wave interaction with an array of cylinders", Ocean. Eng, 110, pp.62~77 (2015)
- Jiao, J. L., "Experimental investigation of waveinduced ship hydroelastic vibrations by large-scale model measurement in coastal waves", Shock Vib, pp.16~ (2016)
- H.Y. Kang, "Time-domain hydroelastic analysis with efficient load estimation for random waves", International Journal of Naval Architecture and Ocean Engineering, 9(3), pp.266~281 (2017), 대한조선학회
- Kashiwagi, M., "A Time-Domain Green Function Method for Transient Problems of a Pontoon-Type VLFS", VLFS'99, 1, pp.97~104 (1990)
- Kim, Y., "Operational modal analysis on the hydroelastic response of a segmented container carrier model under oblique waves", Ocean. Eng, 127, pp.357~367 (2016)
- Li, H., "3-D Hydroelasticity Analysis Method for Wave Loads of Ship", pp.2009
- Li, L., "Nonlinear hydroelastic analysis of an aquaculture fish cage in irregular waves", Mar. Struct, 34, pp.56~73 (2013)
- Sime Malenica, "Hydro-structural issues in the design of ultra large container ships", International Journal of Naval Architecture and Ocean Engineering, 6(4), pp.983~999 (2014), 대한조선학회
- Ogilvie, T. F., "Recent progress toward the understanding and prediction of ship motions", The Fifth Symposium on Naval Hydrodynamics (1964)
- Senjanovic, I., "Application of 1D FEM & 3D BEM hydroelastic model for stress concentration assessment in large container ships", Brodogradnja, 63, pp.307~317 (2012)
- Senjanovic, I., "Formulation of consistent restoring stiffness in ship hydroelastic analysis", J. Eng. Math, 72(1), pp.141~157 (2012)
- Ivo Senjanović, "Global hydroelastic analysis of ultra large container ships by improved beam structural model", International Journal of Naval Architecture and Ocean Engineering, 6(4), pp.1041~1063 (2014), 대한조선학회
- Senjanovic, I., "Some aspects of structural modelling and restoring stiffness in hydroelastic analysis of large container ships", Ships Offshore Struct, 9, pp.199~217 (2014)
- Tang, H. Y., "Experimental investigation of waveinduced hydroelastic vibrations of trimaran in oblique irregular waves", Shock Vib, 17 (2016)
- Tang, H. Y., "Investigation of longitudinal vibrations and slamming of a trimaran in regular waves", J. Ship Res, 61, pp.153~166 (2017)
- Tian, C., "Theoretical and Applicational Study on the Nonlinear Hydroelastic of Ships with Forward Speed", pp.2007
- Wang, X. L., "Comparative studies of the transverse structure design wave loads for a trimaran by model tests and rule calculations", J. Ship Mech, 15, pp.269~274 (2011)
- Wei, W., "A time-domain method for hydroelasticity of very large floating structures in inhomogeneous sea conditions", Mar. Struct, 57, pp.180~192 (2018)
- Xiao, Y., "Non-linear Time-domain Anaylsis and Calculation for Moored Systems", pp.2005