## Proceedings of the ... International Conference on Offshore Mechanics and Arctic Engineering, Volumes 1-2American Society of Mechanical Engineers, 1991 - Arctic regions |

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Page 1

OCCURRENCE OF EXTREME WAVES WITH RESPECT TO SIGNIFICANT

WAVE

Technologie et Informatique IFREMER – Centre de BREST Plouzané , France -

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OCCURRENCE OF EXTREME WAVES WITH RESPECT TO SIGNIFICANT

WAVE

**HEIGHT**Agnès Robin and Michel Olagnon Direction Ingénierie ,Technologie et Informatique IFREMER – Centre de BREST Plouzané , France -

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Page 6

5 WAVE

close to 1.0 , Te is the mean time interval ... of ” freak waves " ( 4 , 13 ) is the wave

steepness which is defined as the ratio of the wave

5 WAVE

**HEIGHTS**AND WAVE PERIODS 7 , mean of T / Tc , is a function of eclose to 1.0 , Te is the mean time interval ... of ” freak waves " ( 4 , 13 ) is the wave

steepness which is defined as the ratio of the wave

**height**to the wave length .Page 50

The distribution of the significant wave

L years , Hmol ( t ) , is then given by ; FHmot ( h ) = ( FH mo ( h ) ) 92 ( 1 ) ( 6 )

where qu ( 1 ) is the number of 7 - hour events during L years . It is thereby ...

The distribution of the significant wave

**height**in the most severe sea state duringL years , Hmol ( t ) , is then given by ; FHmot ( h ) = ( FH mo ( h ) ) 92 ( 1 ) ( 6 )

where qu ( 1 ) is the number of 7 - hour events during L years . It is thereby ...

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### Contents

CONTENTS | 131 |

High Frequency Hydrodynamic Damping of a TLP | 147 |

A Comparison of Results | 153 |

Copyright | |

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### Common terms and phrases

acceleration added amplitude analysis angle applied approach approximately assumed body boundary cable calculated coefficients compared components computed considered constant coordinate corresponding cylinder damping depth determined developed diffraction direction displacement distribution domain drag drift dynamic effect element Engineering equation estimated experimental experiments expressed field Figure floating flow fluid force free surface frequency function given height hydrodynamic included increase integral length lift force linear load mass maximum mean measured Mechanics method mode mooring motion natural nonlinear obtained Offshore operation oscillation period phase pile platform position potential predicted present pressure problem production range ratio relative represents respectively response second-order separation ship shown shows simulation solution stiffness structure surface surge Table Technology tension tests theory values velocity vertical vessel wave