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Dynamic modeling of ships towed by kite

机译:风筝拖曳船的动态建模

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摘要

A dynamic kite flight can affect ship motions. Ship equations of motion associated with the analytical zero-mass kite model are developed. Aiming a realistic amplitude modeling of the kite excitation, a linear modification of the aerodynamic kite specs with the turning rate of the kite velocity heading is proposed. A good agreement with experimental data is obtained. Equations of motion are solved on a reaching path alternatively with a weak and a strong coupling between the ship and the kite. Differences between the two coupling methods become significant when a harmonic of the kite excitation approaches the natural roll frequency of the ship. For the presented case of study, these critical conditions can be avoided with longer tethers or larger kite trajectories.
机译:动态风筝飞行会影响船舶运动。开发了与零质量风筝分析模型相关的船舶运动方程。针对风筝激励的现实振幅模型,提出了用风筝速度航向的转向速率对气动风筝规格进行线性修改的方法。获得与实验数据的良好一致性。通过在船和风筝之间的弱耦合和强耦合来在到达路径上求解运动方程。当风筝激励的谐波接近船舶的自然横摇频率时,两种耦合方法之间的差异变得很明显。对于当前的研究案例,可以使用更长的系链或更大的风筝轨迹来避免这些关键条件。

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