Heave plate is one of the most commonly used plates for controlling the movement of floating structures that are used for offshore deep water operations. Heave plates, in fact, move in both directions simultaneously. Therefore, the primary goal of this work is to examine the coupling motion’s effects on hydrodynamic coefficients caused by the heave and pitch motion of a heave plate. Numerical simulations are used to first simulate coupling motion in phase, and then out of phase which varies from \(0^\circ\) to \(90^\circ\). The effects of added mass and moment, as well as pitching and heaving damping are investigated. Based on the results of the coupling oscillation of the heaving plate at different Keulegan–Carpenter (KC), the results indicate that added mass and pitching damping have more influence than added moment and heave damping coefficient.

波浪板是用于控制用于近海深水作业的浮动结构运动的最常用板之一。事实上，起伏板同时在两个方向上移动。因此，这项工作的主要目标是检查耦合运动对由垂荡板的垂荡和纵摇运动引起的水动力系数的影响。数值模拟首先模拟同相耦合运动，然后模拟从\(0^\circ\)到\(90^\circ\)变化的异相耦合运动。研究了附加质量和力矩以及俯仰和垂荡阻尼的影响。基于不同Keulegan-Carpenter（KC）下垂荡板的耦合振动结果表明，附加质量和纵摇阻尼比附加力矩和垂荡阻尼系数的影响更大。