| 基于波浪载荷直接计算的三体船总纵强度评估研究 |
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| 引用本文： | 周清华,蒋学敏,李祥宁.基于波浪载荷直接计算的三体船总纵强度评估研究[J].船舶工程,2012,34(2):17-20. |
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| 作者姓名： | 周清华 蒋学敏 李祥宁 |
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| 作者单位： | 中国舰船研究设计中心,武汉,430064;中国舰船研究设计中心,武汉,430064;中国舰船研究设计中心,武汉,430064 |
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| 摘 要： | 采用基于自由面格林函数法的三维线性势流理论求解三体船辐射和绕射的水动力问题,得到各重现周期和概率水平下的垂向弯矩和垂向剪力的长期预报极值,分析其统计特性和分布规律,并与规范计算值进行比较,在此基础上运用簿壁梁理论进行总纵强度评估,为三体船的载荷预报和结构分析提供参考。
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| 关 键 词： | 三体船 势流理论 波浪载荷 长期预报 总纵强度 |
| 收稿时间： | 2011/11/13 0:00:00 |
| 修稿时间： | 2011/12/26 0:00:00 |
Research on longitudinal strength assessment of trimaran based on wave loads direct calculation method |
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| ZHOU Qing-hu,JIANG Xue-min and LI Xiang-ning.Research on longitudinal strength assessment of trimaran based on wave loads direct calculation method[J].Ship Engineering,2012,34(2):17-20. |
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| Authors: | ZHOU Qing-hu JIANG Xue-min and LI Xiang-ning |
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| Institution: | (China Ship Development and Design Center,Wuhan 430064,China) |
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| Abstract: | Based on the free surface green function method,the three dimensional linear potential flow theory is adopted to solve trimaran’s diffraction and radiation hydrodynamic problem.The long-term response valves of vertical bending moment and vertical shear force at different return periods and exceed probability levels are obtained.Its statistical characteristics and distribution are analyzed and compared with the rule calculation valves.Longitudinal strength is evaluated with the theory of thin-walled beam.This provides a reference for load calculation and structural analysis of trimaran. |
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| Keywords: | trimaran potential flow theory wave loads long-term response longitudinal strength |
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