Estimation of Stopping Ability of Full-scale Ship Using Free-running Model
Estimation of Stopping Ability of Full-scale Ship Using Free-running Model
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DOI：
10.1016/j.oceaneng.2016.12.001
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发表时间：
2017-01
影响因子：
5
通讯作者：
M. Ueno;R. Suzuki;Y. Tsukada
中科院分区：
文献类型：
--
作者：
M. Ueno;R. Suzuki;Y. Tsukada
本文讨论了如何利用配有辅助推进器的自由航行模型试验来估算船舶的全尺度停靠能力。基于模块化数学模型的理论分析表明，使用辅助推进器不能保证三自由度停止动作的相似性。然而，作者提出了JSC和航速修正JSC，以确保螺旋桨进给比J的等值，以及与自由航行模型船在停止操纵时的全尺度速度响应的相似性。JSC是一种带有辅助推进器的自由航行模型船的控制方法，用于从安全的角度评估实船的停车能力。数值仿真验证了JSC在可接受裕度的前提下，从轨迹到达距离和停车时间两个方面给出了停车能力的安全侧估计，证明了JSC与其他可能的控制方法相比的优越性。坦克试验数据证明了JSC的良好工作状态。
The authors discuss how to estimate full-scale stopping ability of ships using free-running model test equipped with an auxiliary thruster. Theoretical analysis based on a modular mathematical model clarified the similarity of three-degree-of-freedom stopping manoeuvre cannot be ensured by the use of the auxiliary thruster. The authors, however, proposeJand speed correction, JSC, ensuring the equality of propeller advance ratioJand the similarity to full-scale of speed response of free-running model ship during stopping manoeuvre. JSC is a control method of free-running model ship equipped with an auxiliary thruster for estimating stopping ability of full-scale ship from the viewpoint of safety. Numerical simulation confirmed JSC gives safe side estimates of stopping ability in terms of track reach and stopping time with acceptable margin, which proved the advantage of JSC comparing with possible other control methods. Tank test data demonstrate how JSC works well.