## 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 224

The notion of predicting kinematics beneath irregular waves from a spectral decomposition of the surface elevation , such as that done with

The notion of predicting kinematics beneath irregular waves from a spectral decomposition of the surface elevation , such as that done with

**linear**random wave theory , is very attractive for its simplicity and speed of computation .Page 98

In general both F ( o ) and G ( o ) are non -

In general both F ( o ) and G ( o ) are non -

**linear**functions . Numerous experimental studies ( Roberts , 1985 ; Roberts et al . , 1991 ) have show that a**linear**- plus - quadratic parametric form for F ( o ) is a good representation ...Page 102

Hence , for

Hence , for

**linear**- plus - quadratic damping one has , from equations ( 47 ) and ( 29 ) non -**linear**single - degree - of - freedom model given by equation ( 5 ) . For generality , the zero mean stationary Guassian excitation process ...### What people are saying - Write a review

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### Contents

SPECIAL SESSION HYDRODYNAMICS | 1 |

HYDRODYNAMIC FORCES | 29 |

Simulated High Reynolds Number Flow and Forces on Cylinder Groups | 71 |

Copyright | |

47 other sections not shown

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### Common terms and phrases

acting amplitude analysis angle applied approach approximately assumed average body boundary cable calculated circular cylinder coefficients compared comparison components computed considered constant corresponding cylinder damping depth described determined diffraction direction distribution domain drag drift force effect element Engineering equation estimates experimental experiments expressed field Figure floating flow fluid follows free surface frequency function given height horizontal hydrodynamic included increase integral irregular waves length lift force linear loads mass maximum mean measured method mode mooring motion natural nonlinear obtained Ocean Offshore oscillation period phase platform points position potential predicted present pressure problem random range regular relative represents respectively response second order second-order separation ship shown shows simulation solution spectrum structure surge Table tests theory values velocity vertical vortex wave forces