Proceedings of the ... International Conference on Offshore Mechanics and Arctic Engineering, Volume 2; Volume 7, Part 2American Society of Mechanical Engineers, 1988 - Arctic regions |
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Page 204
... excitation force in uniform flow = jt q ( z ) v ( z ) dz Fs = excitation force in shear flow 22 Th G ( z ) ( z ) dz Is 21.22 = = hydrodynamic damping unit length structural damping unit length excitation length mode shape It can be seen ...
... excitation force in uniform flow = jt q ( z ) v ( z ) dz Fs = excitation force in shear flow 22 Th G ( z ) ( z ) dz Is 21.22 = = hydrodynamic damping unit length structural damping unit length excitation length mode shape It can be seen ...
Page 205
... Excitation ( m ) Length Z1 ( lower ) 5.6 - 0.020 0.90 0.030 1.19 0 complete excitation 2.52 2.48 Table 1 The Patel & Lyons criteria would lead to complete excitation for both the B 0.012 and B = 0.020 profiles . = Alternatively defining ...
... Excitation ( m ) Length Z1 ( lower ) 5.6 - 0.020 0.90 0.030 1.19 0 complete excitation 2.52 2.48 Table 1 The Patel & Lyons criteria would lead to complete excitation for both the B 0.012 and B = 0.020 profiles . = Alternatively defining ...
Page 206
... excitation , the hydrodynamic damping and the form of the lift force . Various techniques based on the local reduced velocity have been proposed for estimating the excitation length . The damping ratio and lift coefficient are dependent ...
... excitation , the hydrodynamic damping and the form of the lift force . Various techniques based on the local reduced velocity have been proposed for estimating the excitation length . The damping ratio and lift coefficient are dependent ...
Contents
Catchment Regions of Multiple Dynamic Responses in Nonlinear Problems of Offshore Mechanics | 15 |
OFFSHORE TECHNOLOGY GEOTECHNICAL ENGINEERING | 21 |
Hydrodynamic Forces on a Floating Cylinder in Waves of Finite Depth | 23 |
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added mass amplitude analysis approximately biofouling body boundary breaker breaking waves calculated circular cylinder component computed cylinder damping coefficient diameter diffraction domain drag coefficient drag force dynamic effects exciting force experimental Figure fluid force coefficients forces acting free surface function Green function harmonic Hermite polynomial hindcast hydrodynamic hydrodynamic forces ice mass in-line incident wave inertia integral interaction irregular Kc number linear wave theory load lowerhull maximum measured Mechanics and Arctic method nondimensional nonlinear obtained Ocean Offshore Mechanics offshore structures oscillation parameters platform predicted present ratio Rayleigh distribution regular waves response Reynolds number second order second-order semi-submersible platform semisubmersible shear flow shown simulation solution spectra spectral density spectrum superposition principle surface elevation surge motion tests values velocity potential vibrations vortex shedding w₁ water depth wave drift damping wave drift force wave forces wave frequency wave height wave period