Non-linear Response Analyzes of Moored Floating Bodies in Multi-directional Composite lrregular Forces

多向复合不规则力作用下系泊浮体的非线性响应分析

• 批准号: 04452217
• 负责人: INOUE Yoshiyuki
• 金额: $ 3.14万
• 依托单位: YOKOHAMA NATIONAL UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (B)
• 财政年份: 1992
• 资助国家: 日本
• 起止时间: 1992 至 1994
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-04452217/
• 关键词: FLOATING STRUCTURE; MOORING SYSTEM; NON-LINEAR RESPONSES; MULTI-DIRECTIONAL IRREGULAR WAVE; COMPOSITE EXTERNAL FORCE; 係留浮体; 係留設計法; 非線形外力

In this study, non-linear responses of moored floating bodies in multi-directional ocean current, fluctuated wind and irregular waves has been investigated. The importance of the effects of the low frequency wave forces in mooring system has been recognized. It is shown that the low frequency horizontal motions of a large amplitude in moored vessels are excited by slowly varying non-linear forces. Now there are many papers concerning with numerical calculation and experimental results of wave drift forces. Unfortunately, these papers mainly focused on long crested waves. For more realistic seas-including wind and ocean current-there are very few results. In order to predict low frequency motions of the moored vessel in realistically seas, it is necessary to investigate the various environmental forces in the seas. To perform the study, following subjects are researched.(1) Numerical studies for non-linear hydrodynamics(2) Dynamic behaviors of mooring lines(3) Non-linear responses of moored floating bodies(4) Control of position keeping system of marine structures(5) Application to the design of mooring system

在这项研究中，已经研究了多个方向海洋电流中系泊浮动物体的非线性反应，风和不规则波的波动。低频波力在系泊系统中的影响的重要性已被认识到。结果表明，系泊容器中大幅度的低频水平运动通过缓慢变化的非线性力而激发。现在有很多有关数值计算和波漂移力实验结果的论文。不幸的是，这些论文主要集中在长长的波浪上。对于更逼真的海洋，包括风和海洋电流，结果很少。为了预测现实海洋系泊容器的低频运动，有必要研究海洋中的各种环境力量。要进行研究，研究了以下受试者。（1）非线性流体动力学的数值研究（2）系泊线的动态行为（3）系泊浮标物体的非线性响应（4）控制船舶结构的位置系统（5）在系泊系统中的控制（5）

项目成果

Y. Inoue & S. Surendran: "Dynamic Tension Analysis of Surface Towing System" 日本造船学会論文集. 175. 241-250 (1994)

Y. Inoue & S. Surendran：“水面拖曳系统的动态张力分析”日本造船学会论文集 175. 241-250 (1994)

Y.Inoue,Jian Du: "An Application of Fuzzy Contorol Theory in Dynamic Positioning System" 日本造船学会論文集. 174. 389-396 (1993)

Y. Inoue，Jian Du：“模糊控制理论在动态定位系统中的应用”日本造船学会学报 174. 389-396 (1993)

井上 義行、薛 為一: "方向スペクトル波中の変動標流力と長周期運動に関する数値シミュレーション" 日本造船学会論文集. 172. 27-34 (1992)

Yoshiyuki Inoue、Tameichi Suse：“方向谱波中脉动标记力和长周期运动的数值模拟”日本造船学会汇刊 172. 27-34 (1992)。

Y.Inoue,Jian Du,H.Asada,K.Inoue: "The Position Keeping Behaviour of LNG・FPSO with Thrust Assisted Fuzzy Dynamic Positioning System" 日本造船学会第12会海洋工学シンポジウム. 413-418 (1994)

Y.Inoue，Jian Du，H.Asada，K.Inoue：“带有推力辅助模糊动力定位系统的LNG·FPSO的位置保持行为”第12届日本造船学会海洋工程研讨会413-418（1994）。

井上義行、薛為一: "ARAM modelによる方向波中の変動漂流力に関するシュミレーション計算法の改良" 日本造船学会論文集. 174. 409-416 (1993)

Yoshiyuki Inoue、Tameichi Setsu：“使用 ARAM 模型改进定向波中脉动漂移力的模拟计算方法”日本造船学会汇刊 174. 409-416 (1993)。