## 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 65

CALCULATION SCHEME FOR WAVE FORCE Figure 2 illustrates the case where

the body surface intersects to the free surface at an angle of r . Then , Ac and Az

in Figure 2 are defined as

CALCULATION SCHEME FOR WAVE FORCE Figure 2 illustrates the case where

the body surface intersects to the free surface at an angle of r . Then , Ac and Az

in Figure 2 are defined as

**follows**: The wave force in the j direction , F ; , can be ...Page 67

B.C ) = " I Ï m'AB „ Cm + ( -5 ) AmBan Carrying out the differentiation with respect

to z direction in q , equation ( 31 ) is reduced as

SF1 ) = - 61 " ( wi { 209963+ ( 3. 9 - k ) % ? ** ? " } + , { * + - ) " } ] rdirds . ( 62 ) 22 a

I ...

B.C ) = " I Ï m'AB „ Cm + ( -5 ) AmBan Carrying out the differentiation with respect

to z direction in q , equation ( 31 ) is reduced as

**follows**: m = 1 n = 1 1 9 fy ? ! (SF1 ) = - 61 " ( wi { 209963+ ( 3. 9 - k ) % ? ** ? " } + , { * + - ) " } ] rdirds . ( 62 ) 22 a

I ...

Page 250

... sway and yaw motions of the tanker are taken into account . The coupled

motion equations of the tankerbuoy system can be written as

Fig . 12 ) ( M® + M.M. ) + K * ( 1 – t ) * ( t ) de + k_x , = P + Firs ( 14 ) ( 10 ) -6 ( M.

265.

... sway and yaw motions of the tanker are taken into account . The coupled

motion equations of the tankerbuoy system can be written as

**follows**: ( See alsoFig . 12 ) ( M® + M.M. ) + K * ( 1 – t ) * ( t ) de + k_x , = P + Firs ( 14 ) ( 10 ) -6 ( M.

265.

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### Contents

SPECIAL SESSION HYDRODYNAMICS | 1 |

HYDRODYNAMIC FORCES | 29 |

SECONDORDER EFFECTS | 113 |

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 incident 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