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Keywords: frequency
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Proceedings Papers

Paper presented at the SNAME 23rd Offshore Symposium, February 14, 2018
Paper Number: SNAME-TOS-2018-024
... gives acceptable range of design results compared with the fully coupled approach and that the uncoupled approach can be utilized effectively in the design phases of the floating wind platform and mooring system. subsea system thrust fpso frequency floating production system natural frequency...
Proceedings Papers

Paper presented at the SNAME 22nd Offshore Symposium, February 2, 2017
Paper Number: SNAME-TOS-2017-018
... is based on the assumption of a perfect fluid. This approach is known to overpredict the wave elevations close to the moonpool resonance frequencies, as it neglects viscous effects that in reality play a major role in limiting the wave kinematics. Thus, applying potential theory, without special treatment...
Proceedings Papers

Paper presented at the SNAME 21st Offshore Symposium, February 16, 2016
Paper Number: SNAME-TOS-2016-012
... Multiphase flow-induced dynamic loads in rigid tie-in spool are mainly generated by fluid density variation, slugging, and direction change at bends. When the frequencies of the induced dynamic loads are close to the natural frequencies of the rigid tie-in spool, resonance will occur. This may...
Proceedings Papers

Paper presented at the SNAME 21st Offshore Symposium, February 16, 2016
Paper Number: SNAME-TOS-2016-014
... angle from mean, low frequency and wave frequency for each component are extracted. Numerical results are presented to illustrate the significance of each of the motion components to the Flexible Joint rotation angle. The paper concludes with recommendations on the key design considerations...
Proceedings Papers

Paper presented at the SNAME 21st Offshore Symposium, February 16, 2016
Paper Number: SNAME-TOS-2016-024
... artificial intelligence statistics platform design wind energy 100-yrp condition steady wind case naval architect renewable energy tendon spectra subsea system frequency st offshore symposium turbulence houston WIND TURBULENCE EFFECTS IN GLOBAL RESPONSES OF A 5 MW WIND TURBINE THREE-COLUMN...
Proceedings Papers

Paper presented at the SNAME 21st Offshore Symposium, February 16, 2016
Paper Number: SNAME-TOS-2016-040
... requiring the generation of a-priori ambient flow time histories. Ambient turbulence intensity and mean flow speed are user input parameters and Kolmogorov's five-thirds law is utilized to obtain the frequency spectra upon which the algorithm is based. st offshore symposium velocity component us...
Proceedings Papers

Paper presented at the SNAME 20th Offshore Symposium, February 17, 2015
Paper Number: SNAME-TOS-2015-017
... turbine systems, developed by the National Renewable Energy Laboratory (NREL). The hydrodynamic coefficients of the TLP were computed using WAMIT and coupled with the FAST code to simulate aeroservo-hydro-elastic responses. Platform motions; accelerations at nacelle; mooring tensions; eigen frequencies...
Proceedings Papers

Paper presented at the SNAME 20th Offshore Symposium, February 17, 2015
Paper Number: SNAME-TOS-2015-026
... to increase the fidelity of the simulation. proceedings subsea processing houston texas texas section voltage naval architect compressor station tap point application subsea system th offshore symposium energization transmission line consumer frequency industry application upstream oil...
Proceedings Papers

Paper presented at the SNAME 19th Offshore Symposium, February 6, 2014
Paper Number: SNAME-TOS-2014-013
... structures undergoing vortex induced motion; (a) Spar fitted with strakes and (b) riser fitted with fairings. vortex natural frequency project management strategic planning and management strake proceedings texas texas section th offshore symposium subsea system rotational oceanic consulting...
Proceedings Papers

Paper presented at the SNAME 19th Offshore Symposium, February 6, 2014
Paper Number: SNAME-TOS-2014-025
... have also been examined. construction texas texas section installation artificial intelligence th offshore symposium platform diameter naval architect proceedings pipe riser pipe frequency diameter riser design concept riser stiffness houston Proceedings of the 19th Offshore...
Proceedings Papers

Paper presented at the SNAME 16th Offshore Symposium, February 9, 2010
Paper Number: SNAME-TOS-2010-003
.... tension-leg platform renewable energy platform design spiral upstream oil & gas water depth frequency proceedings th offshore symposium artificial intelligence mooring system wind turbine tltp optimization problem subsea system texas texas section offshore wind turbine naval architect...
Proceedings Papers

Paper presented at the SNAME 16th Offshore Symposium, February 9, 2010
Paper Number: SNAME-TOS-2010-004
... incident wave amplitude impedance social responsibility wec platform loss factor sustainable development ocean energy texas texas section turbine renewable energy sustainability naval architect frequency wave energy converter houston th offshore symposium Proceedings of the 16th...
Proceedings Papers

Paper presented at the SNAME 16th Offshore Symposium, February 9, 2010
Paper Number: SNAME-TOS-2010-005
... frequency subsea system body 1 body 12 texas texas section green water concept green water proceedings reservoir pitch motion social responsibility relative wave motion naval architect water concept ocean energy sustainable development renewable energy houston Proceedings of the 16th...
Proceedings Papers

Paper presented at the SNAME 16th Offshore Symposium, February 9, 2010
Paper Number: SNAME-TOS-2010-007
... point of view. For dynamic stiffness the influencing parameters mean load, load range and frequency are distinguished and it is mentioned that according to previous research in a real wave situation the parameters load range and frequency can be ignored. A first example case discusses a renewable wave...
Proceedings Papers

Paper presented at the SNAME 16th Offshore Symposium, February 9, 2010
Paper Number: SNAME-TOS-2010-008
... process. To predict and possibly mitigate the resonance of the system, it is crucial to accurately estimate the natural frequency from the total added-mass of the system. The objective of this study is to determine the total added-mass coefficient of a suction pile through model tests. KEY WORDS: Added...
Proceedings Papers

Paper presented at the SNAME 14th Offshore Symposium, November 10, 2004
Paper Number: SNAME-TOS-2004-14-013
... VERITAS, OSLO, NORWAY ABSTRACT Slow speed engines in LNG Carriers means introduction of an excitation source with forces of considerably magnitude acting over a wide range of frequencies. A vibration study of a large LNG Carrier (235K m3) with spherical tanks reveals that the response of the containment...
Proceedings Papers

Paper presented at the SNAME 13th Offshore Symposium, February 24, 2004
Paper Number: SNAME-TOS-2004-13-007
... of 6500 short tons, and is designed for GOM operations. Two tendon concepts were evaluated and compared: stepped OD steel, and a Carbon Fiber Reinforced Polymer (CFRP) tendon design. Sizing studies and frequency domain global analyses were performed for both tendon concepts. Comparative displacement...

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