Proceedings of the ... International Conference on Offshore Mechanics and Arctic Engineering, Volumes 1-2American Society of Mechanical Engineers, 1990 - Arctic regions |
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Page 424
vibration generating equipment . The vibrations were monitored with the help of acceleration transducers mounted on the pile at mud line . The output from the acceleration transducers was amplified using universal amplifiers and ...
vibration generating equipment . The vibrations were monitored with the help of acceleration transducers mounted on the pile at mud line . The output from the acceleration transducers was amplified using universal amplifiers and ...
Page 426
... VIBRATION ITEM MODE PRAKASH ( 1981 ) VERTICAL fnz Hz -- HORIZONTAL fn1 Hz fn2 Hz 12.45 Ax 0.44 0.40 0.36 0.32 0.28 Amplitude ma . 0.24 0.20 0.16 0.12 0.08 0.04 0 Amplitude , microns 1.0 0.5 0 -0.5+ -1.0 DESIGN OF TOGI TEMPLATE TO AVOID ...
... VIBRATION ITEM MODE PRAKASH ( 1981 ) VERTICAL fnz Hz -- HORIZONTAL fn1 Hz fn2 Hz 12.45 Ax 0.44 0.40 0.36 0.32 0.28 Amplitude ma . 0.24 0.20 0.16 0.12 0.08 0.04 0 Amplitude , microns 1.0 0.5 0 -0.5+ -1.0 DESIGN OF TOGI TEMPLATE TO AVOID ...
Page 77
... vibration natural periods . Although the second or the third vibration mode can be very important in other cases , the first vibration mode is regarded as dominant for the considered tether diameter ( 1100 mm ) and water depth ( 300 m ) ...
... vibration natural periods . Although the second or the third vibration mode can be very important in other cases , the first vibration mode is regarded as dominant for the considered tether diameter ( 1100 mm ) and water depth ( 300 m ) ...
Contents
Simulation of Hurricane Seas in a Multidirectional Wave Basin | 17 |
9 | 38 |
27 | 45 |
Copyright | |
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added mass amplitude analysis array calculated results circular cylinder cosh crane ship crest damping coefficient density directional wave displacement distribution domain drag coefficient drag force dynamic effect Engineering equation estimated experimental results flow fluid force coefficients forces acting forward speed free surface Green's function heave horizontal hydrodynamic hydrodynamic forces incident wave irregular Kc number lift force linear load low-frequency matrix maximum measured method mooring line motion nonlinear obtained offshore structures oscillation parameters pile potential theory predicted pressure random ratio Rayleigh distribution regular waves response Sarpkaya second-order semisubmersible ship motions shown in Figure simulation solution spectra spectral density spectrum spreading function surge tanker transfer function vector velocity potential vertical vessel vortex vortex shedding vortices water depth wave amplitude wave component wave drift wave force wave frequency wave groups wave height wave number wave period wave power