## Proceedings of the ... International Conference on Offshore Mechanics and Arctic EngineeringAmerican Society of Mechanical Engineers, 1994 - Arctic regions |

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Page 229

(1985) • : First

10.000 0.2 0.4 0.6 0.1 (Ss/Sc)+ (Ss/Sc)- Ss — Slrouhal number (vortex shedding

frequency) Sc = Slrouhal number (cylinder osillation frequency) FIGURE 5.8 ...

(1985) • : First

**Phase**Tesu : Second**Phase**Tests Gopalkriihnan (1993) . : Re =10.000 0.2 0.4 0.6 0.1 (Ss/Sc)+ (Ss/Sc)- Ss — Slrouhal number (vortex shedding

frequency) Sc = Slrouhal number (cylinder osillation frequency) FIGURE 5.8 ...

Page 327

From the above formulations, it can be shown that the instantaneous frequency (

denotes differentiation with respect to time. An “optimum carrier” frequency is

given ...

From the above formulations, it can be shown that the instantaneous frequency (

**phase**velocity) is given by [13]: d4(t) r(t)f(t) = r(t)f(t) dt &*(t) where the prime “”denotes differentiation with respect to time. An “optimum carrier” frequency is

given ...

Page 328

In general it was found that this frequency differed from one computed based on

a constant

measured

In general it was found that this frequency differed from one computed based on

a constant

**phase**assumption, i.e., $(r) = uict + ip (also a least-square fit to themeasured

**phase**). The results from analysis of one half-cycle for KC = 19.3 are ...### What people are saying - Write a review

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### Contents

OCEAN WAVES AND ENERGY | 1 |

HYDRODYNAMIC FORCES | 45 |

COMPUTATIONAL HYDRODYNAMICS | 91 |

Copyright | |

7 other sections not shown

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### Common terms and phrases

added mass amplitude analysis boundary conditions buoy calculated Circular Cylinder compliant tower components correlation length curve deck diameter diffraction drag coefficient drag force drift force dynamic effects energy Engineering envelope equation experimental Figure fluid Fluid Mechanics free surface heave Hilbert transform horizontal hydrodynamic hydrodynamic force incident wave increase installation interaction irregular waves lift coefficient lift force linear load control lock-in matrix maxima maximum measured method model tests modes mooring line nonlinear obtained Ocean OMAE oscillating cylinder parameters peak phase pipe platform predicted present pressure problem quadratic Quickwave random ratio Reynolds number riser seastate second-order shear shedding frequency shown simulation solution spectral spectrum stationary cylinder stiffeners Strouhal Strouhal number transfer function transverse turbulence uniform flow values vector velocity potential vertical vibration vortex shedding water depth wave force wave frequency wave height wave power wind