摘要
运用安全池理论研究了某近海干货船在横向规则波作用下的船舶倾覆问题。用阿当姆斯预估—校正法数值求解时域内单自由度非线性横摇方程。采用三维格林积分方程法计算水动力系数的频域特性。分析了非线性横摇方程中势流阻尼、非线性阻尼以及在横向规则波作用下波高和频率对安全池的影响。
The capsizing for an offshore cargo ship in regular beam waves was studied by using the theory of safe basin. The single degree of freedom second order differential equation of nonlinear rolling motion was solved numerically in time domain by using the Adams-Bashforth method. The hydrodynamics in the used frequency domain were calculated based on 3-D Green's integral equation method. The influences of potential damping, nonlinear viscous damping, wave heights and wave frequencies in regular beam waves on the safe basin were investigated.
出处
《船舶力学》
EI
2004年第2期25-28,共4页
Journal of Ship Mechanics
基金
国家自然科学基金资助项目(10072021)
关键词
横向规则波
船舶力学
船舶倾覆
横摇运动
安全池
阿当姆斯预估-校正法
水动力系数
Damping
Degrees of freedom (mechanics)
Differential equations
Frequency domain analysis
Green's function
Hydrodynamics
Integral equations
Mathematical models
Three dimensional
