Proceedings of the ... International Conference on Offshore Mechanics and Arctic Engineering, Volume 9American Society of Mechanical Engineers, 1990 - Arctic regions |
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Page 295
... load in wave groups was investigated . The 9 - DOF dynamic model incorporated hull motions coupled with nonlinear large - angle load swing and elastic stretch of the hoisting rope assembly . Hydrodynamic response forces and wave ...
... load in wave groups was investigated . The 9 - DOF dynamic model incorporated hull motions coupled with nonlinear large - angle load swing and elastic stretch of the hoisting rope assembly . Hydrodynamic response forces and wave ...
Page 297
... load were written as follows : ( 10 ) where Ak , Bk are 6 x 6 parameter matrices of an n - th order state space ... load , Xp , Yp , Zp are forces act- ing on the centroid of the load P resolved along fixed coordinates xo , yo , zo , and ...
... load were written as follows : ( 10 ) where Ak , Bk are 6 x 6 parameter matrices of an n - th order state space ... load , Xp , Yp , Zp are forces act- ing on the centroid of the load P resolved along fixed coordinates xo , yo , zo , and ...
Page 299
... load dependent parameters , in Table II ( case of hook load 242 t ) . Two approximations for response were calculated : ( 1 ) linear closed - form and ( 2 ) nonlinear simulated . Re- sults are presented in Fig . 2 for surge and pitch ...
... load dependent parameters , in Table II ( case of hook load 242 t ) . Two approximations for response were calculated : ( 1 ) linear closed - form and ( 2 ) nonlinear simulated . Re- sults are presented in Fig . 2 for surge and pitch ...
Contents
OCEAN WAVES | 1 |
Simulation of Hurricane Seas in a Multidirectional Wave Basin | 17 |
OFFSHORE MECHANICS AND ARCTIC ENGINEERING | 25 |
Copyright | |
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acceleration added mass amplitude analysis boundary conditions calculated circular cylinder computed cosh crest cylinder array damping coefficient damping factor density diffraction domain drag coefficient drag force drift force dynamic effect equation estimated flow fluid force coefficients forces acting forward speed free surface heave horizontal hydrodynamic hydrodynamic forces incident wave inertia coefficients integral irregular Kc number lift force linear load low-frequency low-frequency oscillation maximum measured method motion nonlinear obtained offshore structures oscillatory parameters pile plate potential flow predicted quadratic rad/sec radiation condition ratio regular waves response Sarpkaya second order second-order semisubmersible shown in Figure simulation solution spectral density spectrum surface elevation surge swing tank tanker transfer function vector velocity potential viscous vortex shedding vortices water depth wave amplitude wave drift damping wave excitation wave force wave frequency wave groups wave height wave number wave period wave power