中国舰船研究2025，Vol.20Issue(3)：45-52,8.DOI:10.19693/j.issn.1673-3185.03643
国内沿海航区海船波浪中动稳性安全水平研究
Safety level of dynamic stability in waves of coastal sea-going ships in domestic waters
摘要
Abstract
[Objective]The purpose of this study is to investigatethe safety risk of dynamic stability in waves of coastal sea-going ships in domestic waters by evaluating parametric roll,pure loss of stability and synchronous roll,based on the second generation intact stability assessment method for domestic ships.[Method]The Froude-Krylov assumption and free trim method are used to calculate the righting levers and stability characteristics in waves,simplified nonlinear motion equations and frequency-domain motion equa-tion based on hydrodynamics are used to obtain the time/frequency domain results of roll amplitude and accel-eration of parametric and synchronous roll,and the stability characteristics are used to evaluate pure loss of stability.Finally the risk probabilities of three failure modes are obtained based on the probability of sea-states.[Results]The study shows that the typical ship types may be vulnerable to pure loss of stability and syn-chronous roll,and assessment results of dynamic stability safety level in waves are generally consistent with the accident and investigation results.[Conclusion]There is a risk of dynamic stability accidents in waves for typical Chinese coastal sea-going ship types.It is suggested that in the optimization of ship design,ship op-eration and sailing under adverse sea conditions,maritime supervision and accident investigation,special at-tention should be paid to the above safety level and accident risk assessment results.关键词
船舶/适航性/波浪中动稳性/安全水平/沿海航区/失效模式Key words
ships/seaworthiness/dynamic stability in waves/safety level/coastal navigation area/fail-ure modes分类
交通运输引用本文复制引用
杨培青,周耀华..国内沿海航区海船波浪中动稳性安全水平研究[J].中国舰船研究,2025,20(3):45-52,8.基金项目
交通运输部交通运输行业重点科技项目(2022-ZD6-093) （2022-ZD6-093）
