Study on Safety of Ship Navigation in Narrow Waterway

狭窄航道船舶航行安全研究

• 批准号: 06302064
• 负责人: KIJIMA Katsuro
• 金额: $ 6.4万
• 依托单位: KYUSHU UNIVERISTY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (A)
• 财政年份: 1994
• 资助国家: 日本
• 起止时间: 1994 至 1996
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-06302064/
• 关键词: Ship Manoeuvrability; Narrow Waterway; Hydrodynamic force; Cross Flow; Collision Avoidance; Margin of Safe Navigation; 大斜航角; Cross flow drag; 特異点分布法; 操縦性能; 操縦運動推定

It is well known that hydrodynamic interaction forces between ships or between ship and bank wall or pier have much influence on characteristics of ship manoeuvrability. It is important to know the characteristics of these interaction forces to insure safety of sailing ships. Then we developed theoretical prediction method for the hydrodynamic interaction forces based on the slender body theory and carried out numerical simulation of manoeuvring motion of ships sailing in the proximity of pier. According to the results of numerical calculation, there is a danger that the ship will collide with the pier if the lateral ship distance is less than 0.7 L.We also developed prediction method for cross flow drag acting on a ship hull based on the vortex shedding model because component of cross flow drag dominates the hydrodynamic force acting on ship hull when ship is moving with large drift angle at low speed. It is shown that longitudinal distribution of the cross flow drag along the ship length can be predicted with comparatively comparatively high accuracy using the presented prediction method.Furthermore we presented collision avoidance system using the predicted hydrodynamic forces and investigated effectiveness of the system by numerical simulation considering human factor.

众所周知，船舶之间、船舶与岸壁或桥墩之间的水动力相互作用力对船舶操纵性有很大的影响。了解这些相互作用力的特性，对保证船舶航行安全具有重要意义。在此基础上，建立了基于细长体理论的水动力干扰力理论预报方法，并对船舶在码头附近航行时的操纵运动进行了数值模拟。根据数值计算结果，当船舶横向距离小于0.7 L时，船舶有可能与桥墩发生碰撞。针对船舶低速大漂角运动时，横流阻力分量对船舶船体所受水动力起主导作用的特点，提出了基于涡脱落模型的船舶船体横流阻力预报方法。结果表明，本文提出的预测方法能够较准确地预测横流阻力沿沿着的分布，并利用预测的水动力建立了船舶避碰系统，通过数值仿真研究了该系统在考虑人的因素下的避碰效果。

项目成果

Yoshitaka FURUKAWA and Katsuro KIJIMA: "Study on Prediction Method for Hydrodynamic Force Acting on a Ship Hull in Swaying Motion (Continued)" Journal of the Society of Naval Architects of Japana. Vol.180. 235-240 (1996)

Yoshitaka FURUKAWA 和 Katsuro KIJIMA：“摇摆运动中作用于船体的水动力预测方法研究（续）”日本造船学会杂志a。

Katsuro KIJIMA,Yoshitaka FURUKAWA: "Ship Manoeuvring Motion in the Proximity of Piers" Proceedings of MCMC '94. 211-222 (1994)

Katsuro KIJIMA、Yoshitaka FURUKAWA：“码头附近的船舶操纵运动”MCMC 94 论文集。

Katsuro KIJIMA and Yoshitaka FURUKAWA: "Ship Manoeuvring Motion in the Proximity of Piers" Proceedings of MCMC '94. 211-222 (1994)

Katsuro KIJIMA 和 Yoshitaka FURUKAWA：“码头附近的船舶操纵运动”MCMC 94 论文集。

Hayama IMAZU: "Multi Stages Decision Model for Collision Avoidance Action" Proceedings of the Hill Taylor Dickinson Seminar on Maritime Collision. 116-126 (1996)

Hayama IMAZU：“避免碰撞行动的多阶段决策模型”希尔泰勒狄金森海上碰撞研讨会论文集。

Katsuro Kijima: "Ship Manoeuvring Motion in the Proximity of Piers" Proceedings of MCMC'94. 211-222 (1994)

Katsuro Kijima：“码头附近的船舶操纵运动”MCMC94 论文集。