| 海上重力式平台波浪力的数值计算和实验验证 |
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| 引用本文： | 陶建华,竺艳蓉,杨明华.海上重力式平台波浪力的数值计算和实验验证[J].天津大学学报(自然科学与工程技术版),1987(4). |
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| 作者姓名： | 陶建华 竺艳蓉 杨明华 |
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| 作者单位： | 天津大学力学系
(陶建华)，天津大学海洋与船舶工程系
(竺艳蓉)，天津大学海洋与船舶工程系(杨明华) |
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| 摘 要： | 根据重力式平台的受力特性,平台的波浪荷载分成两部分计算。上部立柱作为小尺度结构按Stokes五阶波理论计算;下部沉垫视为大尺度结构物,用线性绕射理论计算。绕射计算中采用了不同形式的格林函数,提出了一个奇点处理的方法,使计算得以简化。整个数值计算方法具有快速、经济的特点,计算结果与整体模型实验结果进行了比较,符合良好。
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| 关 键 词： | 重力式平台 Stokes五阶波理论 格林函数 |
THE NUMERICAL COMPUTATION AND EXPERIMENTAL VERIFICATION OF WAVE FORCES ON A GRAVITY PLATFORM IN THE SEA |
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| Tao Jianhua.THE NUMERICAL COMPUTATION AND EXPERIMENTAL VERIFICATION OF WAVE FORCES ON A GRAVITY PLATFORM IN THE SEA[J].Journal of Tianjin University(Science and Technology),1987(4). |
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| Authors: | Tao Jianhua |
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| Abstract: | According to the hydrodynamic properties of a gravity platform, the numerical computation of wave loads on the columns and on the caisson are performed separately. The columns which are regarded as small bodies are computed by using the Stokes 5th order wave theory. And for the caisson which is treated as a large body the linear diffraction theory is used for its computation. Different forms of Green's function are used in diffraction problems. A treatment method of singularity is proposed for simplifying the computations. The present numerical method is character-ized by its rapidity and cheapness.The results of computations agree satisfactorily with the measured re sults of the physical model test. |
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| Keywords: | gravity platform Stokes 5th order wave theory Green's function |
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