The Proceedings of the First (1990) European Offshore Mechanics Symposium: Hydrodynamics and Structural Mechanics, Tubular Joints and Fatigue, TLP, Offshore Systems, Pipelines and Risers, Cables and Mooring, Ice-structure InteractionsJin S. Chung |
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Results 1-3 of 61
Page 256
... pitch / roll resonance at wave frequencies of half the natural pitch frequency . This implies that even large increases in pitch stiffness will not move the natural period out of the excitation range . The following is a summary of an ...
... pitch / roll resonance at wave frequencies of half the natural pitch frequency . This implies that even large increases in pitch stiffness will not move the natural period out of the excitation range . The following is a summary of an ...
Page 269
... pitch motions are over- estimated by the numerical model . This is due to the added mass term a13 , which couples the surge and pitch response . The model does not take into account the frequency depen- dent nature of the added mass ...
... pitch motions are over- estimated by the numerical model . This is due to the added mass term a13 , which couples the surge and pitch response . The model does not take into account the frequency depen- dent nature of the added mass ...
Page 335
... pitch moment will reduce and better pitch motion will be achieved . For large draughts , the line of action will be above the centre of gravity . As the draught increases further both the line of action and the centre of gravity will ...
... pitch moment will reduce and better pitch motion will be achieved . For large draughts , the line of action will be above the centre of gravity . As the draught increases further both the line of action and the centre of gravity will ...
Contents
OPENING SPEECH | 1 |
On the Modelling of Short Crested Sea for Structural Response Calculations | 13 |
Real Time Estimation of Waves and Drift Forces | 21 |
Copyright | |
43 other sections not shown
Common terms and phrases
added mass amplitude analysis anchor axial behaviour bending buckling buckling length buoy cable calculated components cylinder damage damping damping ratio deformation diameter displacement distribution drag coefficient drift force dynamic effect elements equation European Offshore Mechanics experimental failure fatigue Figure flow frequency hoop stress horizontal hydrodynamic in-plane inertia coupling interaction joint length linear load maximum measured method mooring motion nonlinear Norway obtained Offshore and Polar Offshore Mechanics Symposium offshore structures oscillation parameters pipe pipeline pitch plastic plate platform predicted pressure random ratio Rayleigh distribution response riser S-N curve scour shear shear stress ship shown simulation Society of Offshore soil spectral spectrum static Statoil steel stiffeners stiffness strain strength surface surge Table tension Tension Leg Platform tests tether transfer function Trondheim tube values velocity vertical vessel water depth wave height Weibull distribution weld