The influences of heave on roll are dependent on the area of water plane, vertical center of gravity, heaving response amplitude and encountering frequency of a ship in terms of the nonlinear static coupling formulae. 垂荡对横摇非线性静力耦合的影响主要取决于水线面面积、重心的垂向位置,以及垂荡响应幅值和遭遇周期。