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

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Page 298

Let Ę be wave elevation at 0 and n its Hilbert transform , i.e. XP -Frcosa -

Ftsinacoss mpg Fysinasins Yp Zр ( 19 ) N Wave forces incident on the crane

were approximated as the sum : & + in - [ Agexp ( -1kg ( xocosøsty , sinys ) +1 (

wyt + € ...

Let Ę be wave elevation at 0 and n its Hilbert transform , i.e. XP -Frcosa -

Ftsinacoss mpg Fysinasins Yp Zр ( 19 ) N Wave forces incident on the crane

**ship**were approximated as the sum : & + in - [ Agexp ( -1kg ( xocosøsty , sinys ) +1 (

wyt + € ...

Page 299

system , centered at the equilibrium position 0 of midship point 0. A second ,

shipbound coordinate system Oxyz , centered at the midship point of the moving

**Ship**translation is given by coordinates Xo0,2 . in an earthbound coordinatesystem , centered at the equilibrium position 0 of midship point 0. A second ,

shipbound coordinate system Oxyz , centered at the midship point of the moving

**ship**, is ...Page 303

ABSTRACT on the

helicopter landing . The success of the method ... The short - term prediction of

...

ABSTRACT on the

**ship**motions in six degrees of freedom is used as an aid tohelicopter landing . The success of the method ... The short - term prediction of

**ship**motions has always been of interest to naval architects . Merchant**ships**and...

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### Contents

HYDRODYNAMIC FORCES | 47 |

The Force Coefficients on Inclined Cylinder in Random Wave and Current | 57 |

K S Varyani | 79 |

Copyright | |

45 other sections not shown

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### Common terms and phrases

acting added mass amplitude analysis angle applied array assumed body boundary calculated circular coefficient compared component considered constant corresponding crest cylinder damping defined dependent depth determined direction distribution domain drag drift dynamic effect element Engineering equation estimated experimental experiments expressed Figure flow fluid forward speed frequency function given heave horizontal hydrodynamic increase integral irregular length lift force linear load maximum mean measured method mooring motion nonlinear obtained Offshore oscillation parameters period phase pile plate potential predicted present pressure problem radiation range ratio reference regular waves relative respectively response riser ship shown shown in Figure simulation solution spectra spectrum structure surface surge Table theory velocity vertical vessel wave force wave height wind