## Proceedings of the ... International Conference on Offshore Mechanics and Arctic Engineering, Volumes 1-2American Society of Mechanical Engineers, 1990 - Arctic regions |

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Page 63

EXPERIMENTAL STUDY OF IN - LINE FORCES ON A LARGE DIAMETER FIXED VERTICAL CYLINDER TO RANDOM WAVES N. Srinivasan ... The random

EXPERIMENTAL STUDY OF IN - LINE FORCES ON A LARGE DIAMETER FIXED VERTICAL CYLINDER TO RANDOM WAVES N. Srinivasan ... The random

**wave force**spectra were predicted using least square method , cross - spectral method and equivalent K.Page 160

and , quadratic difference interactions of the sea

and , quadratic difference interactions of the sea

**waves**. The linear and second order**wave**exciting**forces**are then obtained from the spectrally decomposed surge responses using the TLP linear transfer function model .Page 298

Following Marthinsen ( 1983 ) , the second - order force was estimated as follows . Let Ę be wave elevation at 0 and n its Hilbert transform , i.e. XP -Frcosa -Ftsinacoss mpg Fysinasins Yp Zр ( 19 ) N

Following Marthinsen ( 1983 ) , the second - order force was estimated as follows . Let Ę be wave elevation at 0 and n its Hilbert transform , i.e. XP -Frcosa -Ftsinacoss mpg Fysinasins Yp Zр ( 19 ) N

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### Contents

HYDRODYNAMIC FORCES | 47 |

The Force Coefficients on Inclined Cylinder in Random Wave and Current | 57 |

K S Varyani | 79 |

Copyright | |

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### Common terms and phrases

acting added mass amplitude analysis angle applied array assumed body boundary calculated circular coefficient compared component considered constant corresponding crest cylinder damping defined dependent depth determined direction distribution domain drag drift dynamic effect element Engineering equation estimated experimental experiments expressed Figure flow fluid forward speed frequency function given heave horizontal hydrodynamic increase integral irregular length lift force linear load maximum mean measured method mooring motion nonlinear obtained Offshore oscillation parameters period phase pile plate potential predicted present pressure problem radiation range ratio reference regular waves relative respectively response riser ship shown shown in Figure simulation solution spectra spectrum structure surface surge Table theory velocity vertical vessel wave force wave height wind