【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。更多还原

【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.更多还原