Numerical and experiment research on the direct stability assessment criteria under dead ship condition in rough seas
The methods to be used for direct stability assessment of stability under dead ship condition are now under development by the International Maritime Organization (IMO) in the Second Generation Intact Stability Criteria.Model experiments and simulations are done to promote a reliable numerical method for predicting stability under dead ship condition.Firstly, a 3DOF roll mathematical model is used to calculating roll motion in irregular beam waves and steady wind.Secondly, roll amplitudes are compared in experiments and simulations and roll motion amplitudes in regular waves shows obvious nonlinearity as the wave height is bigger,which showed conspicuously different from the linear results of 1 DOF.Finally, The maximum roll angles are compared in experiments and simulations in irregular waves.It confirmed that capsizing could be calculated using the 3 DOF nonlinear mathematical model and the roll time history curves display stochastic characteristic regardless of capsizing happen or not,but regular statistics characteristic in the large asmple stochastic events.
Dead ship condition direct stability assessment capsizing irregular waves
Tianhua Wang Min GU Ke Zeng Jiang LU
China Ship Scientific Reseach Center Wuxi, China
国际会议
The Second Conference of Global Chinese Scholars on Hydrodynamics(第二届全球华人水动学学术会议)
江苏 无锡
英文
772-776
2016-11-11（万方平台首次上网日期，不代表论文的发表时间）