## 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 434

kpl kpg 17 ormon Im my Ms Mpe Force 1 Force 2 mo 15 in which mg ma Ms ks

kpl мре kpg = mass of ship including added mass =

mg 2 ...

kpl kpg 17 ormon Im my Ms Mpe Force 1 Force 2 mo 15 in which mg ma Ms ks

kpl мре kpg = mass of ship including added mass =

**stiffness**of ship = local**stiffness**of platform ( denting ) effective platform mass global platform**stiffness**3mg 2 ...

Page 490

3 Introduction In real cases , the curvature will change when applying an internal

friction moment , but at a much higher bending

also nescessary for numerical simulations in order to avoid numerical problems ...

3 Introduction In real cases , the curvature will change when applying an internal

friction moment , but at a much higher bending

**stiffness**than the elastic . This isalso nescessary for numerical simulations in order to avoid numerical problems ...

Page 559

For iteration step number i , the nodal forces and

elements in the local coordinate systems are obtained by use of the theory

outlined above . The results for each element are transformed into the global

coordinate ...

For iteration step number i , the nodal forces and

**stiffness**matrices for allelements in the local coordinate systems are obtained by use of the theory

outlined above . The results for each element are transformed into the global

coordinate ...

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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