## Proceedings of the ... International Conference on Offshore Mechanics and Arctic Engineering, Volume 1; Volume 7, Part 1American Society of Mechanical Engineers, 1988 - Arctic regions |

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Page 305

A method is proposed to extract the mass , damping , and stiffness

A method is proposed to extract the mass , damping , and stiffness

**matrices**of structures from the estimated modal ... Tower eigen vectors qi : Complex modal vectors U : Complex modal**matrix**: Eigen values**matrix**P T х NOMENCLATURE ...Page 307

0 Let the ith eigenvalue and corresponding eigen vector of

0 Let the ith eigenvalue and corresponding eigen vector of

**matrix**A of equation ( 4 ) be given respectively a 1 a1 0 .... ..0 as W = a2 a1 1 .... .0 р Pi = Php R р i + I + jP R I ui = i + ju ui a a n - 2 an - 1I al 1 I Equation ( 10 ) ...Page 308

We present in next sections a method to estimate the M , C , and K

We present in next sections a method to estimate the M , C , and K

**matrices**from these estimated modal parameters . ... ESTIMATION OF DAMPING AND STIFFNESS**MATRICES**In this section , we will show that the damping**matrix**, C , and the ...### What people are saying - Write a review

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### Contents

FLOATING PRODUCTION SYSTEMS | 1 |

OFFSHORE MECHANICS | 23 |

Early Production Systems in the North | 31 |

Copyright | |

34 other sections not shown

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analysis angle applied axial bending cable calculated characteristics coefficient components Conference connected considered construction cost curve damage depth determined diameter direction displacement distribution dynamic effect element energy Engineering equation equipment fatigue field Figure flexible flow forces frequency function geometry given important included increase installation International joint length limit linear load lower mass material matrix maximum mean measured Mechanics method mode mooring motion natural normal obtained Offshore operation parameters performance period pile pipe pipeline platform position presented pressure problem production range ratio response riser shear shown shows significant soil static stiffness strength stress structure surface Table Technology tension tower turbine unit vane vessel wave weight wire