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

### From inside the book

Results 1-3 of 77

Page 305

A real - time scheme is proposed to

using input output measurements . A method is proposed to extract the mass ,

damping , and stiffness matrices of structures from the

parameters .

A real - time scheme is proposed to

**estimate**the structure modal parameters byusing input output measurements . A method is proposed to extract the mass ,

damping , and stiffness matrices of structures from the

**estimated**modalparameters .

Page 306

+ R . obtained from the

matrix is available . It is shown that knowledge of both inputs and outputs is

required in order to be able to

applying the ...

+ R . obtained from the

**estimated**modal parameters provided that the massmatrix is available . It is shown that knowledge of both inputs and outputs is

required in order to be able to

**estimate**the mass matrix . The possibility ofapplying the ...

Page 308

We present in next sections a method to

these

. Theorem to give explicit expressions of C and K in terms of the modal ...

We present in next sections a method to

**estimate**the M , C , and K matrices fromthese

**estimated**modal parameters . Equation ( 20 ) will be solved in the following. Theorem to give explicit expressions of C and K in terms of the modal ...

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### Contents

Early Production Systems in the North | 31 |

Application of System Identification Technique to Damage Detection and Location in Offshore Platform | 77 |

Vibration Testing and Dynamic Analysis of Offshore Platform Models | 85 |

Copyright | |

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### Common terms and phrases

analysis angle applied assumed axial bending cable calculated coefficient components Conference connection considered cost curve depth determined developed diameter direction displacement distribution dynamic effect element energy Engineering equation equipment estimated extreme factor fatigue field Figure flow force frequency function given important included increase installation International length limit linear load lower Marine mass material matrix maximum mean measured Mechanics method mode mooring motion natural normal obtained Offshore operation parameters performed period pile pipe platform position predicted presented pressure problem production range ratio response riser rope shear shown shows significant soil solution static stiffness strength stress structure surface Table Technology tension tower unit vane vertical vessel wave weight wire