## Proceedings of the ... International Conference on Offshore Mechanics and Arctic Engineering, Volumes 1-2American Society of Mechanical Engineers, 1990 - Offshore structures |

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Page 12

3.3 Non-linear method of simulation 3.3.1 Description of the method A

wave, where each pair of free propagating wavelets of the first order wave

contributes ...

3.3 Non-linear method of simulation 3.3.1 Description of the method A

**second****order**wave theory was proposed by Sand and Mansard [11] for unidirectionalwave, where each pair of free propagating wavelets of the first order wave

contributes ...

Page 181

COMPLETE AND APPROXIMATE SOLUTIONS FOR

FORCES ON CYLINDER ARRAYS A. N. Williams Department of Civil and

Environmental Engineering University of Houston Houston, Texas A. G. Abul-

Azm ...

COMPLETE AND APPROXIMATE SOLUTIONS FOR

**SECOND**-**ORDER**WAVEFORCES ON CYLINDER ARRAYS A. N. Williams Department of Civil and

Environmental Engineering University of Houston Houston, Texas A. G. Abul-

Azm ...

Page 182

The complete solution of the

instead an approximate solution is sought in which the scattering problem for the

array at this order is replaced by a set of equivalent isolated body problems ...

The complete solution of the

**second**-**order**diffraction problem is not attempted,instead an approximate solution is sought in which the scattering problem for the

array at this order is replaced by a set of equivalent isolated body problems ...

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added mass amplitude analysis array calculated circular cylinder component crest damping coefficient direction displacement distribution domain drag coefficient drag force drillship dynamic effect element equation estimated flexible riser floating flow fluid force coefficients forces acting foroe forward speed free surface heave horizontal hydrodynamic hydrodynamic forces incident wave integral irregular Kc number lift force linear load low-frequency low-frequency oscillation matrix maximum measured method mooring line motion nonlinear obtained Offshore Mechanics Offshore Structures Offshore Technology Conference oscillation oscillatory parameters pile plate prediction pressure problem ratio Rayleigh distribution regular waves response Reynolds number Sarpkaya seastates second-order semisubmersible ship shown in Figure simulation solution spectra spectrum surge tension transfer function transverse vector velocity potential vertical viscous vortex vortex shedding vortices water depth wave amplitude wave excitation wave force wave frequency wave height wave number wave period wave power