On secular terms which appear in perturbation problems of non-linear wave forces acting on offshore structures, and solutions of the problems compared with model tests
海上结构物非线性波浪力扰动问题中出现的长期项及其与模型试验的比较
基本信息
- 批准号:15360461
- 负责人:
- 金额:$ 9.28万
- 依托单位:
- 依托单位国家:日本
- 项目类别:Grant-in-Aid for Scientific Research (B)
- 财政年份:2003
- 资助国家:日本
- 起止时间:2003 至 2006
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
This research analyzes nonlinear wave loads using perturbation method. Higher order nonlinear hydrodynamic forces such as third order wave excitation and wave drift added mass had not been obtained due to secular terms which appear in higher order problems, whilst lower hydrodynamic forces such as second order wave excitation and wave drift damping can be obtained. Therefore even if we calculate full nonlinear problem using pure numerical method such as a finite difference method, we have no bench marks to be compared to assure its accuracy. This research presents new analysis method of solution to these secular term problems, as well as measurement method of experiment to verify the solutions of this new analysis.First year we solved the problem of a vertical circular cylinder in both wave and current by the eigenfunction expansion method, and compared free surface elevation with the measured date by Swan et al. Second year we extended our method to the problem of floating vertical cylinder from the cylinder touching to the bottom. Third and the last year we developed a hybrid method combining near field boundary element method (BEM) and far field eigenfunction expansion method. We obtained wave drift added mass of a spheroids.We developed a measurement method to obtain maneuvering hydrodynamic force derivatives by Planar Motion Mechanism (PMM) in waves. These derivatives verify the solutions of this new analysis.
这项研究使用扰动方法分析了非线性波载荷。高阶非线性流体动力(例如三阶波激发和波浪漂移)尚未获得较高问题的世俗术语,而较低的流体动力(如二阶波动激发和波浪漂移阻尼)则获得了较低的术语。因此,即使我们使用纯数值方法(例如有限差异方法)计算完整的非线性问题,我们也没有比较基准标记以确保其准确性。这项研究提出了解决这些世俗项问题的新分析方法,以及实验的测量方法,以验证该新分析的解决方案。第一年,我们解决了波和电流膨胀方法中垂直圆柱和电流的垂直圆缸的问题,并将其与Swan等人的自由表面升高与测量日期进行了比较。第二年,我们将方法扩展到了从圆柱接触到底部的浮动垂直缸的问题。第三和去年,我们开发了一种混合方法,该方法结合了近场边界元素方法(BEM)和远场特征函数扩展方法。我们获得了波动的波浪漂移质量。我们开发了一种测量方法,以通过波中的平面运动机理(PMM)获得机动的流体动力衍生物。这些衍生物验证了这种新分析的解决方案。
项目成果
期刊论文数量(21)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Solutions of higher-order potentials necessary to evaluate wave-drift added mass
评估波漂移附加质量所需的高阶势解
- DOI:
- 发表时间:2003
- 期刊:
- 影响因子:0
- 作者:Motoki Yoshida;Hiroshi Isshiki;Weiguang Bao (Ikou Sano);Takeshi Kinoshita
- 通讯作者:Takeshi Kinoshita
高次オーダー速度ポテンシャルの解法 -波漂流付加質量の理論計算-
高阶速度势的解-波浪漂移附加质量的理论计算-
- DOI:
- 发表时间:2003
- 期刊:
- 影响因子:0
- 作者:吉田基樹;一色 浩;鮑(佐野)偉光;木下 健
- 通讯作者:木下 健
Wave-drift added mass of a vertical circular cylinder derived from a moving frame formulation
由移动框架公式导出的垂直圆柱体的波漂移附加质量
- DOI:
- 发表时间:2004
- 期刊:
- 影响因子:0
- 作者:Yasunori Nihei;Takeshi Kinoshita;Weiguang Bao (Ikou Sano);Weiguang Bao
- 通讯作者:Weiguang Bao
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KINOSHITA Takeshi其他文献
KINOSHITA Takeshi的其他文献
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{{ truncateString('KINOSHITA Takeshi', 18)}}的其他基金
Studies on the concept of green space and the method for sustainable area revitalization in the United Kingdom
英国绿色空间概念及可持续区域振兴方法研究
- 批准号:
23580032 - 财政年份:2011
- 资助金额:
$ 9.28万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Study on forecast and evading of Freak wave
畸形波预报与规避研究
- 批准号:
19106016 - 财政年份:2007
- 资助金额:
$ 9.28万 - 项目类别:
Grant-in-Aid for Scientific Research (S)
Bioprospecting targeted for domestic higher plant resource in search of anti-microbial chemical leads
针对国内高等植物资源进行生物勘探,寻找抗菌化学先导化合物
- 批准号:
15590022 - 财政年份:2003
- 资助金额:
$ 9.28万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Ethnopharmacognosical Study on A Southeast Asian Aurantioideae Medicinal Plant Murraya paniculata: Correlation between Its Chemical Diversity and Medicinal Use in Traditional Medicine
东南亚橙科药用植物九里香的民族生药学研究:其化学多样性与传统医学用途的相关性
- 批准号:
12672064 - 财政年份:2000
- 资助金额:
$ 9.28万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Theory of non-linear wave forces acting on an offshore structure in a shallow water and comparison with experiments
浅水中海上结构的非线性波浪力理论及与实验的比较
- 批准号:
12450406 - 财政年份:2000
- 资助金额:
$ 9.28万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Basic studies on possible application of anti-oxidative fraction and constituents of crude drug origin to preventive medicine
抗氧化部位及药材来源成分在预防医学中的可能应用基础研究
- 批准号:
10671998 - 财政年份:1998
- 资助金额:
$ 9.28万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Ethnobotanical survey in Philippine tropical rain forest : in search of new medicinal and useful gene resources
菲律宾热带雨林民族植物学调查:寻找新的药用和有用基因资源
- 批准号:
09041192 - 财政年份:1997
- 资助金额:
$ 9.28万 - 项目类别:
Grant-in-Aid for international Scientific Research
Nonlinear hydrodynamic forces acting on an offshore structure n waves
波浪作用在海上结构上的非线性水动力
- 批准号:
07455401 - 财政年份:1995
- 资助金额:
$ 9.28万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
A New Approach to Synthesis of Isoflavonoids Having Boneresorption Activity
具有骨吸收活性的异黄酮类化合物的合成新方法
- 批准号:
05671767 - 财政年份:1993
- 资助金额:
$ 9.28万 - 项目类别:
Grant-in-Aid for General Scientific Research (C)
Study on motions of a sailing boat
帆船运动的研究
- 批准号:
04452215 - 财政年份:1992
- 资助金额:
$ 9.28万 - 项目类别:
Grant-in-Aid for General Scientific Research (B)
相似国自然基金
波浪作用下浮体大幅慢漂运动水动力特性研究
- 批准号:51809133
- 批准年份:2018
- 资助金额:26.0 万元
- 项目类别:青年科学基金项目
相似海外基金
Theory of non-linear wave forces acting on an offshore structure in a shallow water and comparison with experiments
浅水中海上结构的非线性波浪力理论及与实验的比较
- 批准号:
12450406 - 财政年份:2000
- 资助金额:
$ 9.28万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Perturbation analysis on non-linear behaviors of the offshore structure
海上结构非线性行为的摄动分析
- 批准号:
09450376 - 财政年份:1997
- 资助金额:
$ 9.28万 - 项目类别:
Grant-in-Aid for Scientific Research (B).
Nonlinear hydrodynamic forces acting on an offshore structure n waves
波浪作用在海上结构上的非线性水动力
- 批准号:
07455401 - 财政年份:1995
- 资助金额:
$ 9.28万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Hydrodynamic interaction of multiple-cylinders oscillating in both current and waves
多圆柱体在水流和波浪中振荡的水动力相互作用
- 批准号:
05650949 - 财政年份:1993
- 资助金额:
$ 9.28万 - 项目类别:
Grant-in-Aid for General Scientific Research (C)