## 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 149

Log ( diameter - 2 m ) 50 m III 5 IV 3 6 10 m We

the waves are unidirectional in the direction Ox ( see fig . 7 ) . Random

Characteristics of the Structure The platform is

size an ...

Log ( diameter - 2 m ) 50 m III 5 IV 3 6 10 m We

**assume**that for each sea - statethe waves are unidirectional in the direction Ox ( see fig . 7 ) . Random

Characteristics of the Structure The platform is

**assumed**to have an initial crack ofsize an ...

Page 208

The platform has 4 legs and is

California . ... In the MPI , the mean value u = 3mm is obtained

probability of detection a 75mm long crack is equal to 90 % , as suggested by

Chen ( 7 ] ...

The platform has 4 legs and is

**assumed**to be located off the west coast ofCalifornia . ... In the MPI , the mean value u = 3mm is obtained

**assuming**that theprobability of detection a 75mm long crack is equal to 90 % , as suggested by

Chen ( 7 ] ...

Page 346

In the present case it is

corresponding oil price for the years of EPP is

the years of EPP from 600 NOK / Smo the first year and approaching the ...

In the present case it is

**assumed**an oil production volume of 1.5 MSm / year Thecorresponding oil price for the years of EPP is

**assumed**to vary step wise throughthe years of EPP from 600 NOK / Smo the first year and approaching the ...

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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