Effects of steady wave forces on course-keeping manoeuvres of full- and model-scale ships moving obliquely in short waves

Effects of steady wave forces on course-keeping manoeuvres of full- and model-scale ships moving obliquely in short waves
复制标题

稳态波浪力对短波斜行实船和模型船航向保持操纵的影响

DOI:
10.1080/09377255.2022.2149094
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发表时间:
2022
期刊:
SHIP TECHNOLOGY RESEARCH (SCHIFFSTECHNIK)
影响因子:
--
通讯作者:
and Michio Ueno
and Michio Ueno
中科院分区:
--
文献类型:
--
作者:
Ryosuke Suzuki;Yoshiaki Tsukada;and Michio Ueno

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我们研究了斜向运动产生的稳定波浪力变化对船舶操纵估计的影响,使用了一个仅将稳定波浪力纳入平静水中三自由度传统模块化数学模型的数值模拟。该调查是对一艘在常规短波中进行航向保持演习的超大型原油运输船进行的。根据实验数据和船舶漂移角的存在与否,通过两种方法给出了仿真中的定常波浪力。通过自由运行模型试验验证了仿真结果;这涉及船舶模型和全尺寸船舶的各种舵效条件,包括有和没有发动机限制的情况。通过这一验证,我们表明,当准确估计全尺寸船舶在短波中的机动时,斜向运动产生的稳定波浪力变化是不可忽略的,尽管它们对于船舶模型可以忽略不计。
We investigated the effects of the steady wave force variations generated by oblique motions upon ship manoeuvre estimations, using a numerical simulation that incorporated only steady wave forces into a three-degrees-of-freedom conventional modular mathematical model in calm water. The investigation was conducted for a very large crude carrier undergoing course-keeping manoeuvres in regular short waves. The steady wave forces in the simulation were provided via two methods, depending on the experimental data and the presence or absence of a ship drift angle. The simulation was validated via a free-running model test; this involved various rudder effectiveness conditions for the ship model and full-scale ships, both with and without engine limits. Through this validation, we showed that the steady wave force variations generated by oblique motions are non-negligible when accurately estimating the manoeuvres of full-scale ships in short waves, although they are negligible for ship models.
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