Proceedings of the ... International Conference on Offshore Mechanics and Arctic Engineering, Volume 13, Parts 1-2American Society of Mechanical Engineers, 1994 - Arctic regions |
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Page 29
... spectral moments given in terms of the spectral density S ( w ) by ∞ mn = ] w " S ( w ) dw ( 10 ) The above equations apply for linear waves with arbitrary thresh- old level ao . When nonlinear waves are introduced , we ask what must ...
... spectral moments given in terms of the spectral density S ( w ) by ∞ mn = ] w " S ( w ) dw ( 10 ) The above equations apply for linear waves with arbitrary thresh- old level ao . When nonlinear waves are introduced , we ask what must ...
Page 30
Values of the spectral coefficient C , determined from equation ( 12 ) with R set equal to zero , are shown in Figure 2 as a function of the relative threshold level a / Hs . It can be seen that some de- pendence of the spectral ...
Values of the spectral coefficient C , determined from equation ( 12 ) with R set equal to zero , are shown in Figure 2 as a function of the relative threshold level a / Hs . It can be seen that some de- pendence of the spectral ...
Page 352
... Spectral Amplitude ( ft3 ) & 8 30 & 0.00 0.00 0.30 1.00 1.50 Frequency ( Hz ) 40.00 Spectral Amplitude ( ( ft / s ' ) ) 20.00 DOIOH72 HEAVE ACCELERATION 80.00 50.00 40.00 Spectral Amplitude ( ( ft / s ' ) ' ) 20.00 0.00 0.00 0.50 00 ...
... Spectral Amplitude ( ft3 ) & 8 30 & 0.00 0.00 0.30 1.00 1.50 Frequency ( Hz ) 40.00 Spectral Amplitude ( ( ft / s ' ) ) 20.00 DOIOH72 HEAVE ACCELERATION 80.00 50.00 40.00 Spectral Amplitude ( ( ft / s ' ) ' ) 20.00 0.00 0.00 0.50 00 ...
Contents
OCEAN WAVES AND ENERGY | 1 |
Load Control Method and Its Realization on an OWC Wave Power Converter | 19 |
Nonlinearity in CrestTrough Statistics of Bretschneider Seas | 27 |
Copyright | |
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added mass amplitude analysis applied ASME assessment axial boundary buoy calculated compliant tower components correlation crack growth curve cylinder damping deck displacement distribution domain drag drag coefficient dynamic effects Engineering equation estimated experimental factor fatigue flow fluid fracture mechanics free surface frequency hindcast horizontal hydrodynamic increase inspection installation interaction jack-up joints lift coefficient lift force linear load matrix maximum measured method modes module mooring line motion nonlinear obtained offshore structures OMAE operation oscillating cylinder parameters peak period phase piles pipe potential predicted pressure probability of failure procedure random random variables ratio reliability response Reynolds number riser risk safety seastate second-order shown in Figure significant wave height simulation spectral spectrum statistical stiffness stress Strouhal tether transfer function tubular variables vector velocity velocity potential vertical vortex shedding water depth wave force Weibull distribution weld wind