## Proceedings of the ... International Conference on Offshore Mechanics and Arctic EngineeringAmerican Society of Mechanical Engineers, 1994 - Arctic regions |

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Page 95

The

problem. The steady drift forces calculated by momentum theory, which is

extended from Maruo's (1960) formula based on the conservation of wave

momentum to a ...

The

**heaving**motion is constrained in this comparison in order to simplify theproblem. The steady drift forces calculated by momentum theory, which is

extended from Maruo's (1960) formula based on the conservation of wave

momentum to a ...

Page 96

This tuning phenomenon depends on the

dependence of the slowly varying drift forces. The

due to the two components wave is larger than that for K22=40 tf/m as shown in

Fig.

This tuning phenomenon depends on the

**heave**motion which is the samedependence of the slowly varying drift forces. The

**heave**response for K22=0 tf/mdue to the two components wave is larger than that for K22=40 tf/m as shown in

Fig.

Page 349

EXPERIMENTAL RESULTS Figure 5a shows the autospectrum for the discus

buoy

while Figure 7a displays the

spectra ...

EXPERIMENTAL RESULTS Figure 5a shows the autospectrum for the discus

buoy

**heave**displacement. Figure 6a presents the**heave**velocity autospectrumwhile Figure 7a displays the

**heave**acceleration spectra. The**heave**motionspectra ...

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### Contents

OCEAN WAVES AND ENERGY | 1 |

HYDRODYNAMIC FORCES | 45 |

COMPUTATIONAL HYDRODYNAMICS | 91 |

Copyright | |

7 other sections not shown

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### Common terms and phrases

added mass amplitude analysis boundary conditions buoy calculated Circular Cylinder compliant tower components correlation length curve deck diameter diffraction drag coefficient drag force drift force dynamic effects energy Engineering envelope equation experimental Figure fluid Fluid Mechanics free surface heave Hilbert transform horizontal hydrodynamic hydrodynamic force incident wave increase installation interaction irregular waves lift coefficient lift force linear load control lock-in matrix maxima maximum measured method model tests modes mooring line nonlinear obtained Ocean OMAE oscillating cylinder parameters peak phase pipe platform predicted present pressure problem quadratic Quickwave random ratio Reynolds number riser seastate second-order shear shedding frequency shown simulation solution spectral spectrum stationary cylinder stiffeners Strouhal Strouhal number transfer function transverse turbulence uniform flow values vector velocity potential vertical vibration vortex shedding water depth wave force wave frequency wave height wave power wind