## 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 heaving

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 309

Low= 5 s High frequency

0.68 0.72 || 0.80 0.74 || 0 1 1.41 1.1 .71 - .85 0 1.05 1.15 | 1.14 | 1.1 1 1 0 0 .32 1.

...

Low= 5 s High frequency

**motion**2 3 4 characteristics None 0.48 .56 uen 0.63 ||0.68 0.72 || 0.80 0.74 || 0 1 1.41 1.1 .71 - .85 0 1.05 1.15 | 1.14 | 1.1 1 1 0 0 .32 1.

**motion**= 10 s 3 2 4 0.64 || 0.70 0. - .84 || 0.77 0.75 || 0.51 .50 | 0.67 0.58 0. .78 .56...

Page 312

+ - [u] ul 0.50- L] | 0.00+-----T-I-T-I-T-I-T0.0 5.0 10.0 15.0 20.0 25.0 Period (s)

Figure 8: bichromatic

bottom) coefficients versus T, for kc = 1.5 and Kc = 3. D: horizontal

elliptic ...

+ - [u] ul 0.50- L] | 0.00+-----T-I-T-I-T-I-T0.0 5.0 10.0 15.0 20.0 25.0 Period (s)

Figure 8: bichromatic

**motion**. Low frequency added mass (top) and damping (bottom) coefficients versus T, for kc = 1.5 and Kc = 3. D: horizontal

**motion**+:elliptic ...

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### Contents

OCEAN WAVES AND ENERGY | 1 |

Load Control Method and Its Realization on an OWC Wave Power Converter | 19 |

Nonlinearity in CrestTrough Statistics of Bretschneider Seas | 27 |

Copyright | |

15 other sections not shown

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### Common terms and phrases

amplitude analysis applied approach assumed body boundary buoy calculated Circular coefficient compared compliant component considered correlation curve cylinder damping derived determined developed direction distribution domain drag drift dynamic effects energy Engineering equation experiments expressed field Figure flow fluid frequency function given height horizontal hydrodynamic increase installation interaction Journal length lift coefficient lift force linear load mass maximum mean measured method modes mooring motion nonlinear noted obtained Offshore operation oscillation peak period phase pipe platform potential predicted present pressure problem production random range ratio reference relative represent respectively response Reynolds number second-order shedding shown shows simulation solution spectrum structure surface Table Technology tests theory tower turbulence uniform values velocity vertical vibration vortex water depth wave wind