Hydrodynamic response characteristics and numerical analysis of buoys with different types of floating body
ZHENG Huiyuan
CHEN Yonghua
NI Zuotao
LIU Qingkui
JIANG Jingbo
HU Hegang
XIAO Chao
Abstract：The attitude change of ocean monitoring buoys directly affects the measurement accuracy of some sensors mounted on the buoys.Therefore,the stability of buoys is an important indicator that should be paid attention when designing buoys,and the type of buoy body is closely related to its stabil-ity.To address this problem,based on the three-dimensional potential flow theory and wave radiation-winding theory,this paper discussed four common small ocean monitoring buoys with different buoy structure types by taking wave load as the main external excitation.Simulations were used to analyze the hydrodynamic response characteristics of each buoy body in the two degrees of freedom of heave and roll as well as short-term time domain forecasting,in order to obtain a buoy structure with better sta-bility.The results of the simulation experiment showed that judging from the hydrodynamic character-istics and the time-domain results under the wave load only,the dish-shaped buoy had better anti-wave stability in the roll degree of freedom and the wave-following performance in the heave degree of free-dom among the conventional single-body buoys,followed by the cylindrical buoy.The circular trun-cated buoy was slightly inferior.On the same level,the stability of the single-body buoy was obviously better than that of the multi-body buoy.
Keywords：buoyhydrodynamicRAOsfrequency-domain analysistime-domain analysis
Publication Date：2026-02-25
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：13( 10-22 )