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本文以“波源法”为理论基础,采用约翰(F.John)1950年提出的格林函数为波源函数,就波浪对任意形状的大型近海建筑物的作用提出一种数值计算方法。作者用本方法编制了计算程序,可用以计算作用在固定式建筑物上的波浪力和力矩、波压力分布以及建筑物表面的波浪爬高等。也可用于计算作用在漂浮物体上的扰动力(或激荡力)和力矩、附加质量系数和阻尼系数以及物体本身的运动等。作者就若干基本几何图式结构物上的波浪作用进行了试算,其结果与前人发表的理论研究成果及试验资料进行了比较,表明本方法计算成果是极令人满意的。
Based on the theory of “wave source method”, this paper uses the Green function proposed by John (F. John) in 1950 as the wave source function, and proposes a numerical calculation method for the effect of waves on large-scale offshore structures of arbitrary shape. The authors used this method to compile a calculation program that can be used to calculate the wave forces and moments acting on fixed buildings, the distribution of wave pressures, and the wave heights of buildings. It can also be used to calculate the disturbance force (or agitating force) and moment acting on the floating object, the additional mass coefficient and damping coefficient, and the movement of the object itself. The author tried to calculate the wave action on some basic geometrical structures. The results were compared with the theoretical research results and experimental data published by previous researchers, indicating that the calculation results of this method are extremely satisfactory.