Estimation of Ocean Wave Characteristics and Improvements of Ship Performance of Coastal Cargo Ship

沿海货船海浪特性估计及船舶性能改进

• 批准号: 12555277
• 负责人: SAITO Kimio
• 金额: $ 5.18万
• 依托单位: HIROSHIMA UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2000
• 资助国家: 日本
• 起止时间: 2000 至 2002
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-12555277/
• 关键词: Coastal Sea Area; Wave Characteristics; Service Performance; Coastal Cargo Ship

Model experiments in waves and full-scale measurements on the coastal cargo ship have been conducted and the following conclusions are obtained:1) The estimation method for the wave characteristics has been proposed and the capability of this approach has been confirmed by comparing the significant wave heights, average wave periods and wave directions obtained from the encounter waves measured on the towing carriage, with the ones from the direct measurement of waves in the experimental tank.2) When the estimated values obtained from the ship motions in waves are compared with the direct measurement of waves in the experimental tank, it was found that the average wave periods give comparably good results, the significant wave heights are different in the following waves and the wave directions has an accuracy of 70〜80% in. the range of 30 degree.3) The distribution of acceleration in the cargo hold can be estimated from the measured data of ship responses in the bridge of the coastal cargo ship "Yusho-Maru"(Length 76m, Breadth 12m).4) The practical method for estimating the amount of shipping water into the hold over the hatch coamings of a hatch coverless container ship, which has a large deck area from the bow to the location of hatch coaming, is proposed by combining the "dam breaking theory" and "wave overtopping theory" with "flood waves theory".5) Regarding the safe and scheduled operation of the ship, the relations between the occurence of shipping water and operational conditions (ship course and speed) has been investigated and the operation diagram for the master to prevent shipping water has been shown.

通过波浪中的模型试验和沿海货船的实船测量，得出以下结论：1）提出了波浪特性的估算方法，并通过比较在拖架上测得的遭遇波的有效波高、平均波周期和波向与在实验水池中直接测得的波高、平均波周期和波向，证实了该方法的能力。2）将船舶在波浪中运动的估算值与在实验水池中直接测得的波高、平均波周期和波向进行比较时，结果表明，平均波周期的计算结果较好，后续波的有效波高不同，波向的计算精度为70 ~ 80%。3）根据沿海货船“友昌丸”船桥的实测数据，可以估算出货舱内的加速度分布（长76米，宽12米）。4）估算无舱口盖集装箱船舱口围板上方舱内船舶进水量的实用方法，从船舶的安全和按计划作业考虑，探讨了船舶进水与船舶航向、航速等操作条件的关系，给出了船长防止船舶进水的操作图。

项目成果

斎藤公男, 朱 仁傳, 奥野哲二郎, 菊池信之: "ハッチコーミングを有する船倉内への海水打ち込み水について"酉部造船会々報. 105号. 141-148 (2003)

Kimio Saito、Jinden Zhu、Tetsujiro Okuno、Nobuyuki Kikuchi：“将海水注入带有舱口围板的船舶的货舱”，鸟部造船协会公报第 105 号。141-148 (2003)。

Umeda, N. et al.: "Capsizing Probability of an Indonesian RoRo Passenger Ship in Irregular Beam Seas (3rd Report)"J. of Soc. of Nav. Archi. of Japan. Vol.190. 241-246 (2001)

Umeda, N. 等人：“印度尼西亚滚装客船在不规则波束海的倾覆概率（第三次报告）”J.

Iskandar,B.H.,梅田直也,浜本剛実: "Capsizing Probability of an Indonesian RoRo Passenger Ship in Irregular Beam Seas"日本造船学会論文集. 188号. 183-189 (2000)

Iskandar, B.H.、Naoya Umeda、Takemi Hamamoto：“印度尼西亚滚装客船在不规则波束海中的倾覆概率”，日本造船学会会刊第 188. 183-189 号（2000 年）。

B.H.Iskandar, 梅田直哉: "Capsizing Probability of an Indonesian RoRo Passenger Ship in Irregular Beam Seas (3rd Report)"日本造船学会論文集. 190号. 211-216 (2001)

B.H.Iskandar、Naoya Umeda：“印度尼西亚滚装客船在不规则波束海中的倾覆概率（第三次报告）”，日本造船学会汇刊，第 190. 211-216 号（2001 年）。

Saito, K. et al.: "An Estimation of Ocean Wave Characteristics Based on Measured Ship Motions (4th Report)"J. of Soc. of Nav. Archi. of Japan. Vol.190. 241-246 (2001)

Saito, K. 等人：“基于实测船舶运动的海浪特征估计（第四次报告）”J。