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Keywords: frequency
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Proceedings Papers

Paper presented at the SNAME Maritime Convention and 5th World Maritime Technology Conference, November 4–6, 2015
Paper Number: SNAME-WMTC-2015-084
... of the American Bureau of Shipping (ABS) Rules of 2011 is applied for this study. It starts with a Response Amplitude Operator (RAO) motion calculation of the frigate to obtain the range of peak frequencies in which the response of relative vertical motion and velocity is a maximum. Then, these frequencies...
Proceedings Papers

Paper presented at the SNAME Maritime Convention and 5th World Maritime Technology Conference, November 4–6, 2015
Paper Number: SNAME-WMTC-2015-089
... with linearity assumption and experience coefficients defined in the rules. The offshore engineering design software SESAM is used to accomplish the modeling, calculation, and comparison as well as analysis. frequency fdpso multi-point moored fdpso moored fdpso mooring system china sea wang...
Proceedings Papers

Paper presented at the SNAME Maritime Convention and 5th World Maritime Technology Conference, November 4–6, 2015
Paper Number: SNAME-WMTC-2015-219
... pulse may a system natural frequency of 20 Hz and 20-percent critical amplify the acceleration response for a long duration wave damping. impact pulse. Thus the common myth that shock isolation seats designed to mitigate mine blast in military land vehicles or short duration road impacts will also...
Proceedings Papers

Paper presented at the SNAME Maritime Convention and 5th World Maritime Technology Conference, November 4–6, 2015
Paper Number: SNAME-WMTC-2015-229
... shows the roll motion results in the calm water condition. Roll motion at a very low frequency and a natural roll frequency (0.48 Hz) was dominant, because of the rudder motion in maneuvering and the resonant motion in the natural roll frequency. In the damaged condition, the GM was reduced...
Proceedings Papers

Paper presented at the SNAME Maritime Convention and 5th World Maritime Technology Conference, November 4–6, 2015
Paper Number: SNAME-WMTC-2015-105
... through special TMCP technology – was explored on its potential to mitigate the risk. liquefied natural gas exceedance frequency leak frequency leakage risk management midstream oil & gas steel brittle crack liquified natural gas gas monetization cryogenic pool size diameter flng...
Proceedings Papers

Paper presented at the SNAME Maritime Convention and 5th World Maritime Technology Conference, November 4–6, 2015
Paper Number: SNAME-WMTC-2015-121
... interference. Hence, the purpose of this work is to provide analytical evidence to prove that an air-filled rubber membrane is capable of replacing the previous effort of air-injection. A design strategy for tuning the frequency of destructive interference to an exciting frequency is also presented, which can...
Proceedings Papers

Paper presented at the SNAME Maritime Convention and 5th World Maritime Technology Conference, November 4–6, 2015
Paper Number: SNAME-WMTC-2015-133
... excitation frequency non-linear retardation function anti-roll tank response operator roll angle retardation function tank A study of the response to sway motions of free surface anti-roll tanks Nicolas Carette (V) MARIN, n.carette@marin.nl Free surface anti-roll tanks are commonly used to reduce...
Proceedings Papers

Paper presented at the SNAME Maritime Convention and 5th World Maritime Technology Conference, November 4–6, 2015
Paper Number: SNAME-WMTC-2015-147
... and pressure on the bottom plating of the wedge hull as well as calculations of velocity. This experiment is the start of a much larger research endeavor that will contribute to a deeper understanding of fluid-structure interaction of slamming. frequency new orleans time signal upstream oil & gas...
Proceedings Papers

Paper presented at the SNAME Maritime Convention and 5th World Maritime Technology Conference, November 4–6, 2015
Paper Number: SNAME-WMTC-2015-149
... to the propeller is significantly higher in waves. marine transportation iihr experimental data prediction calm water upstream oil & gas harmonic amplitude pitch motion computation stern validation frequency simulation wavelength condition amplitude sadat-hosseini ship experimental data...
Proceedings Papers

Paper presented at the SNAME Maritime Convention and 5th World Maritime Technology Conference, November 4–6, 2015
Paper Number: SNAME-WMTC-2015-152
... predicted by both CFD and PF. RAOs were similar with the ones from regular waves, available only at a single frequency for head and beam cases. Roll RAOs showed resonance in near beam wave conditions resulting in large roll motions, particularly for the case with passive fins at 105 deg wave heading...
Proceedings Papers

Paper presented at the SNAME Maritime Convention and 5th World Maritime Technology Conference, November 4–6, 2015
Paper Number: SNAME-WMTC-2015-192
... of the methodology, a probabilistic approach is introduced to define a relevant set of ship–ship collision scenarios by treating the accidental influencing parameters as random variables. The collision frequency is calculated for each of the selected collision scenarios by considering a double–hull oil tanker...
Proceedings Papers

Paper presented at the SNAME Maritime Convention and 5th World Maritime Technology Conference, November 4–6, 2015
Paper Number: SNAME-WMTC-2015-009
... This paper describes numerical evaluation of radiation and diffraction forces for a ship travelling in a seaway at moderate forward speed. The method was developed with the objective of providing efficient and robust force predictions in both the frequency and time domains. For evaluation...
Proceedings Papers

Paper presented at the SNAME Maritime Convention and 5th World Maritime Technology Conference, November 4–6, 2015
Paper Number: SNAME-WMTC-2015-018
... calculated using potential flow methods. For certain frequencies, these tend to give negative values. This negative added mass is a known phenomenon in the industry. Combined with negative damping, it is believed to cause instability in non linear (coupled) time domain simulations. In these cases, the vessel...
Proceedings Papers

Paper presented at the SNAME Maritime Convention and 5th World Maritime Technology Conference, November 4–6, 2015
Paper Number: SNAME-WMTC-2015-021
... and corresponding vertical velocities of fluid conditions still exist with restrictions For example, the sampling were analyzed. The work is significant for mastering more frequency is lower so that the peak values during wave action mechanisms of wave impact. cannot be exactly obtained, therefore the results from...
Proceedings Papers

Paper presented at the SNAME Maritime Convention and 5th World Maritime Technology Conference, November 4–6, 2015
Paper Number: SNAME-WMTC-2015-024
... The coupling effects of tank sloshing on the ship motion and wave-induced loads of a very large ethane carrier (VLEC) with 83000m3 loading capacity and four membrane tanks are systematically investigated. The ship motion equation coupled with tank sloshing is calculated in the frequency domain...
Proceedings Papers

Paper presented at the SNAME Maritime Convention and 5th World Maritime Technology Conference, November 4–6, 2015
Paper Number: SNAME-WMTC-2015-038
... and heave motions and vertical accelerations. frequency time history irregular wave heave motion transfer function hull energy spectrum spectrum us government variance hydrodynamic performance vertical acceleration tank resistance regular wave test amplitude inverted bow ship speed...
Proceedings Papers

Paper presented at the SNAME Maritime Convention and 5th World Maritime Technology Conference, November 4–6, 2015
Paper Number: SNAME-WMTC-2015-039
... is discussed with reference to this method applied in this project. holgate optimisation dma system application formulation polymer frequency lower temperature temperature range dynamic mechanical analysis loss factor loss factor peak temperature-frequency sweep optimisation sp150 sp150 lt...
Proceedings Papers

Paper presented at the SNAME Maritime Convention and 5th World Maritime Technology Conference, November 4–6, 2015
Paper Number: SNAME-WMTC-2015-040
... renewable energy thruster simulation water depth accommodation vessel modified amplitude coefficient software mooring system frequency peña calculation investigation spectrum wind farm vessel orelia An Investigation into the Motion Behaviour of a Wind Farm Mothership Blanca Peña1 (AM...
Proceedings Papers

Paper presented at the SNAME Maritime Convention and 5th World Maritime Technology Conference, November 4–6, 2015
Paper Number: SNAME-WMTC-2015-048
.... liquid column damper ship superstructure deckhouse khan vibration control hull girder pillar damper frequency bulkhead characteristic stiffness vibration natural frequency superstructure tlcd Vibration Control of Ships Superstructure using Tuned Liquid Column Damper Md. Ayaz J. Khan1 (V...

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