DEVELOPMENT OF A MEASURERING AND ANALYZING SYSTEM FOR LARGE AMPLITUDE SHIP MOTION IN IRREGULAR DIRECTIONAL WAVES.

船舶大振幅不规则定向波运动测量分析系统的研制。

• 批准号: 03555098
• 负责人: HIRAYAMA Tsugukiyo
• 金额: $ 3.65万
• 依托单位: YOKOHAMA NATIONAL UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Developmental Scientific Research (B)
• 财政年份: 1991
• 资助国家: 日本
• 起止时间: 1991 至 1992
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-03555098/
• 关键词: SHORT CREATED WAVES; LARGE AMPLITUDE MOTION; REMOTE MEASURING; SHIP MOTION; IRREGULAR WAVES

It is very important to measuring the ship motions in experimental wave tank for not only to the evaluation of theory but also to catch those phenomena that can not be estimated by the theory. on the other hands. according to the progress of wave generating techniques. more realistic wave fields became possible to be generated in such a long tank but the measuring system for ship's large motions including the large plane motion are not established yet.So, we aimed to develop a measuring and analyzing method for ship motion in irregular directional waves by using optical device.At the first year, we developed an optical remote measuring system and this last yearl, we developed calculation code for estimating the six degrees freedom motion from the obtained digital data.In the final we tested our system by conducting model experiments in still water and in irregular directional waves. As model we selected free running full ship and long and semisubmersible offshore structure.As wave we used regular, long crested irregular waves, and directional spectrum waves.As for results, our system was confirmed to be a reliable for our original purpose.

测量实验波罐中的船舶运动不仅要评估理论非常重要，而且要捕获无法通过理论估算的现象。另一只手。根据波生成技术的进展。在如此长的坦克中可能会产生更现实的波场，但是尚未建立用于船舶的大型运动的测量系统。因此，我们旨在开发一种通过光学设备进行不规则方向运动的船舶运动的测量和分析方法。在第一年，我们开发了六年级的动作，我们开发了六年级的自由度，我们开发了六年级的自由度，我们将估算为估算的估算。通过在静水和不规则的方向波中进行模型实验测试了我们的系统。作为模型，我们选择了自由运行的全船以及长而半维修的离岸结构。在波浪时，我们使用了常规的，长的不规则波和方向光谱波。结果，结果，我们的系统已被确认是用于我们的原始目的的可靠。

项目成果

竹沢 誠二,平山 次清 金 世殷,スザノ・アルベルト: "方向スペクトル波中の船速低下に関する自航模型実験" 日本造船学会論文集. 172. 47-56 (1992)

Seiji Takezawa、Tsugukiyo Hirayama、Sein Kim、Alberto Suzano：“有关定向频谱波中船舶速度降低的自推进模型实验”日本造船学会汇刊 172. 47-56 (1992)。

竹沢 誠二,平山 次清,金 世殷,スザノ・アルベルト: "方向スペクトル波中の船速低下に関する自航模型試験" 日本造船学会論文集. 172. 47-56 (1992)

Seiji Takezawa、Tsugukiyo Hirayama、Sein Kim、Alberto Suzano：“有关定向频谱波中船舶速度降低的自推进模型测试”日本造船学会汇刊 172. 47-56 (1992)。

Seiji,Takezawa and Tsugukiyo, Hirayama et al.: "Free running model experiment on speed loss in directional spectrum waves" Journal of The Society of Naval Architects of Japan. Vol.172. 47-56 (1992)

Seiji、Takezawa 和 Tsugukiyo、Hirayama 等人：“方向谱波速度损失的自由运行模型实验”日本造船学会杂志。