遗传算法在多向随机波浪反射分析中的应用

俞聿修; 吴喜德; 李毓湘

遗传算法在多向随机波浪反射分析中的应用

1.
大连理工大学, 海岸及近海工程国家重点实验室, 辽宁, 大连, 116024
2.
香港理工大学, 土木及结构工程系, 香港九龙

基金项目: 高等学校博士学科点专项科研基金资助项目(98014118).

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出版历程
- 收稿日期: 2003-03-14
- 修回日期: 2003-06-17

The application of genetic algorithm for multi-directional random wave reflection analysis

1.
State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116024, China
2.
Hong Kong Polytechnic University, Kowloon, Hong Kong, China

摘要

摘要: 通过数值模拟方法研究了遗传算法在分析多向入、反射波浪共存场中入射波浪的方向分布、波浪的反射系数和反射面位置的应用.对入射波浪的方向分布、波浪的反射系数和反射面位置通过遗传优化模拟和理论互谱的差别组成适应函数来确定.数值模拟结果表明,在多向入、反射波浪场中遗传算法能够精确地分离入、反射波浪,而且不需要预先确定反射面位置,因此遗传算法能够很好地被应用于分析多向随机波浪从斜坡堤等反射面位置不明确的建筑物的反射问题.
- 方向谱 /
- 方向分布 /
- 反射系数 /
- 反射面位置 /
- 遗传算法
Abstract: The validity of the genetic algorithm in estimating the directional spreading,reflection coefficient and reflective line distance is studied by numerical simulation.The genetic algorithm is verified by the numerical simulation of wave cross-spectrum and surface elevations.The directional spreading of the incident wave,reflection coefficient and reflection line distance are obtained by optimizing a fitness parameter which is a function of the difference between the simulated and theoretical cross-spectra.The numerical simulation results show that the genetic algorithm can accurately separate the incident and reflected wave in multi-directional reflective wave fields without a prior knowledge of the reflection line position.The analytic and model test results indicate that the genetic algorithm can be applied to analyzing the multi-directional random wave reflection.
- directional spectrum /
- directional spreading /
- reflection coefficient /
- reflector position /
- genetic algorithm

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参考文献(11)

ISOBE M,KONDO.Methods for estimating directional wave spectrum in incident and reflected wave field[A].Proc 19th Conf Coastal Engrg[C].New York: ASCE,1984.467-483.

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文章访问数: 715
HTML全文浏览量: 12
PDF下载量: 1023
被引次数: 0

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