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Abstract
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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◦ to 90◦. 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.
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