摘要
目前在进行破损舰艇进水过程姿态计算的理论和实验研究时,主要还是针对静水情况进行分析,而未考虑舰艇横摇运动下进水过程的姿态计算。基于此,首先以横摇运动的进水过程为研究对象,建立横摇运动微分方程组;然后,在对时间域进行离散化的基础上,使用"四阶龙格—库塔"公式建立数值求解算法;最后,对模型及求解算法进行船模实验验证。设计的实验包括3个不同的进水模式,船模实验结果表明了模型和算法的准确性。所建立的模型和算法可直接用于舰艇横摇运动的仿真,并能为横摇过程中的舰艇稳性计算提供支撑。
The ship motion calculation during the flooding process is primarily investigated in still water. However, the research is limited due to the lack of consideration of ship rolling. In this paper, the dynamic motion calculation model is established firstly. Then, based on time discretion, the numerical arithmetic al-gorithm is developed based on the fourth Runge-Kutta method. Finally, the proposed model is validated by experiment with three different flooding modes. The experiments reveal that the model and algorithm are both accurate and can be applied to simulate the ship rolling motion that serves as the basis of the ship sta-bility calculation.
出处
《中国舰船研究》
2014年第4期44-49,共6页
Chinese Journal of Ship Research
关键词
横摇
进水过程
时域模型
姿态计算
四阶龙格-库塔
rolling
flooding process
time domain model
motion calculation
fourth Runge-Kutta
