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Study on Ship motions moored by "Pneumatic Caisson Mooring System"

“气动沉箱系泊系统”系泊船舶运动研究

基本信息

批准号：
22560516
负责人：
YOSHIDA Akinori
金额：
$ 2.83万
依托单位：
Kyushu University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
2010
资助国家：
日本
起止时间：
2010 至 2012
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-22560516/
关键词：
長周期動揺係留船舶ニューマティックケーソン港湾長周期波

项目摘要

"A pneumatic caisson mooring system" to moor ships to a quay has been devised. The method is completely different from the conventional mooring where ropes are used to connect a floating ship to a quay: a caisson, which is set at the sea bottom in front of the quay wall, starts to moveupward, touches the ship's bottom and continuously lifts the ship upward. After loading and/or unloading, the caisson starts to move downward together with the ship, and at some point the ship separates from the caisson and floats freely. In order to investigate the response of the ship hull in these transient states, wave tank experiments were conducted with a model on 1/45 scale under wave-existing and no wave-existing conditions. The markers, attached to the ship hull and the caisson, were recorded on video in motion, and their trajectories were analyzed using a motion capture system. It was found that the ship moves upward at almost the same speed as the caisson just before contacting with it, and this always results in the ship's smooth landing on the caisson.

设计了一种用于将摩尔船舶系泊到码头的“气动沉箱系泊系统”。该方法与传统的系泊方法完全不同，传统系泊方法是用绳索将浮船连接到码头上：沉箱设置在码头墙前的海底，开始向上移动，接触船底，并不断将船向上提升。在装载和/或卸载之后，沉箱开始与船一起向下移动，并且在某个点处船与沉箱分离并且自由漂浮。为了研究船体在这些瞬态状态下的响应，在有波和无波条件下进行了1/45缩尺模型的波浪水槽实验。标记，附着在船舶船体和沉箱，被记录在视频中的运动，他们的轨迹进行了分析，使用运动捕捉系统。结果发现，在与沉箱接触之前，船舶以几乎与沉箱相同的速度向上运动，这总是导致船舶平稳地降落在沉箱上。