Comparison of Potential Theory and Morison Equation for Deformable Horizontal Cylinders

This study investigates the hydro-elastic behaviors of fully submerged horizontal cylinders in different regular waves. Two methods were proposed and compared this study. The first method was based on potential theory frequency domain discrete-module-beam (DMB) method, which discretizes a floating elastic structure into sufficient number rigid bodies while simultaneously representing behavior from beam elements with Euler-Bernoulli Saint-Venant torsion. Moreover, Morison time employed; estimates wave forces semi-empirical equation, is embodied by massless axial, bending, torsional springs.Various parametric studies cylinder diameter, submergence depth, direction conducted. Wave forces, dry/wet mode shapes/natural frequencies, dynamic motions are presented analyzed.