## 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 85

ASSESSMENT OF

FOR OFFSHORE STRUCTURES Chen Guoming , Huang Dongsheng , and Fang

Huacan Department of Mechanical Engineering University of Petroleum , China ...

ASSESSMENT OF

**FUZZY**UNCERTAINTIES IN FATIGUE LOAD MODELLINGFOR OFFSHORE STRUCTURES Chen Guoming , Huang Dongsheng , and Fang

Huacan Department of Mechanical Engineering University of Petroleum , China ...

Page 87

The characteristic of the normal

symmetry , and that the possibility that I is equal to z is decreased with increased

distance between 2 and u . For this reason , it is specially suitable for a normal ...

The characteristic of the normal

**fuzzy**variables is , that its**fuzzy**distribution is ofsymmetry , and that the possibility that I is equal to z is decreased with increased

distance between 2 and u . For this reason , it is specially suitable for a normal ...

Page 89

REFERENCE The

g ts , ( ༠ ) + do ( 24 ) Equation ( 24 ) is

density function of s ; is expressed by the following formula : а f ; ( s ) - * exp ...

REFERENCE The

**fuzzy**moments of the stress spectrum are defined as : ཟེ , : /g ts , ( ༠ ) + do ( 24 ) Equation ( 24 ) is

**fuzzy**integral . The**fuzzy**probabilistsdensity function of s ; is expressed by the following formula : а f ; ( s ) - * exp ...

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### Contents

CONTENTS | 131 |

High Frequency Hydrodynamic Damping of a TLP | 147 |

A Comparison of Results | 153 |

Copyright | |

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acceleration added amplitude analysis angle applied approach approximately assumed body boundary cable calculated coefficients compared components computed considered constant coordinate corresponding cylinder damping depth determined developed diffraction direction displacement distribution domain drag drift dynamic effect element Engineering equation estimated experimental experiments expressed field Figure floating flow fluid force free surface frequency function given height hydrodynamic included increase integral length lift force linear load mass maximum mean measured Mechanics method mode mooring motion natural nonlinear obtained Offshore operation oscillation period phase pile platform position potential predicted present pressure problem production range ratio relative represents respectively response second-order separation ship shown shows simulation solution stiffness structure surface surge Table Technology tension tests theory values velocity vertical vessel wave