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Keywords: restriction
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Proceedings Papers
Paper presented at the The 32nd International Ocean and Polar Engineering Conference, June 5–10, 2022
Paper Number: ISOPE-I-22-054
... to the seabed. Depending on the installation scenario, the different concepts have advantages and disadvantages. In the conventional concept, relatively little harbor space is required, and the restrictions in terms of wind and waves are mainly relevant for installing the turbine at sea. However, installation...
Proceedings Papers
Paper presented at the The 30th International Ocean and Polar Engineering Conference, October 11–16, 2020
Paper Number: ISOPE-I-20-1244
... are brought into the category of restrictions. The choice of facility type shall be based on a number of influences that may include the following (Mirzoev, 2009): Technological; Engineering and geologic; Metocean (geographic); Production; Environmental. At the current stage, special attention...
Proceedings Papers
Paper presented at the The 30th International Ocean and Polar Engineering Conference, October 11–16, 2020
Paper Number: ISOPE-I-20-2148
... and engineering experience, with the restriction of pipe blockage, pump cavitation, and excavation capacity. Three cases of different operation scenarios are applied to verify and analyze the performance of dredger conveying system. Calculated conveying performance is in good agreement with measured in each case...
Proceedings Papers
Paper presented at the The 30th International Ocean and Polar Engineering Conference, October 11–16, 2020
Paper Number: ISOPE-I-20-1190
...). Wind energy has established itself as an alternative to traditional power generation. Due to the restriction of suitable land areas, offshore will in future play an increasingly important role in the energy turnaround compared to onshore (Oelker et al., 2017). Another reason is the significantly higher...
Proceedings Papers
Stephan Oelker, Abderrahim Ait-Alla, Michael Lütjen, Marco Lewandowski, Michael Freitag, Klaus-Dieter Thoben
Paper presented at the The 28th International Ocean and Polar Engineering Conference, June 10–15, 2018
Paper Number: ISOPE-I-18-332
... of the complexity and the restrictions of the processes. A first study of feederbased installation concepts for OWF was presented in (Ait Alla, Oelker, Lewandowski, Freitag, and Thoben 2017). The authors introduced the base port-feeder concept, in which a feeder vessel supplies an installation vessel, called "Jack...
Proceedings Papers
Paper presented at the The 27th International Ocean and Polar Engineering Conference, June 25–30, 2017
Paper Number: ISOPE-I-17-431
... feeder concept installation site owf installation vessel restriction installation process installation cost offshore wind farm scenario sustainability installation concept base port transport vessel installation port weather restriction conventional concept sustainable...
Proceedings Papers
Paper presented at the The Twenty-fifth International Ocean and Polar Engineering Conference, June 21–26, 2015
Paper Number: ISOPE-I-15-499
... scenarios by varying the active sensor locations. The single objective examples illustrated the situations where only a specified number of sensors were available, and/or there were restrictions in placing the sensors. A two objective optimization case was also investigated that illustrates use...
Proceedings Papers
Paper presented at the The Twenty-second International Offshore and Polar Engineering Conference, June 17–22, 2012
Paper Number: ISOPE-I-12-495
... sequence engineering artificial intelligence resolution restriction optimality condition snapshot frequency oceanic sea state radiance equation multigrid space-time reconstruction Space-time Reconstruction of Oceanic Sea States via Variational Stereo Methods Guillermo Gallego 1 , Anthony...
Proceedings Papers
Paper presented at the The Twenty-first International Offshore and Polar Engineering Conference, June 19–24, 2011
Paper Number: ISOPE-I-11-262
... ABSTRACT: We investigate the applicability of the Hybrid Particle Level Set (HPLS) method for the simulation of breaking waves by analysing its performance in modeling sloshing waves and the collapse of a water column in a confined tank. It is found that commonly used restrictions that delete...
Proceedings Papers
Paper presented at the The Twenty-first International Offshore and Polar Engineering Conference, June 19–24, 2011
Paper Number: ISOPE-I-11-553
... restrictions on marine operations. This methodology is applied here to the Oyster® WEC design which is being developed by Aquamarine Power Ltd. but can be modified to investigate other technologies which have different operation and maintenance philosophies. KEY WORDS: Availability; wave energy converter...
Proceedings Papers
Paper presented at the The Twentieth International Offshore and Polar Engineering Conference, June 20–25, 2010
Paper Number: ISOPE-I-10-277
... or production). Depending on the design variables, structural optimization can be classified as follows (Sekulski, 2009): Shape optimization Topological optimization Choice of material Scantling optimization For scantling optimization (dimensioning), the design variables are restricted to parameters...
Proceedings Papers
Paper presented at the The Seventeenth International Offshore and Polar Engineering Conference, July 1–6, 2007
Paper Number: ISOPE-I-07-186
... social responsibility restriction power absorption diameter wave class supplementary mass equation sustainable development absorption Numerical modelling of wave energy absorption by a floating point absorber system G. De Backer*, M. Vantorre R. Banasiak*, C. Beels* and J. De Rouck* *Ghent...
Proceedings Papers
Paper presented at the The Eleventh International Offshore and Polar Engineering Conference, June 17–22, 2001
Paper Number: ISOPE-I-01-172
... mission is the installation of equipment in deepwater regions. INTRODUCTION The ocean environment imposes several restrictions on the design of underwater robots, due to unpredictable events and strong disturbances, that cannot be tackled using conventional control techniques. Therefore AUVs must...
Proceedings Papers
Paper presented at the The Tenth International Offshore and Polar Engineering Conference, May 28–June 2, 2000
Paper Number: ISOPE-I-00-029
... and the corresponding freeboard exceedance. Significant modifications have been made on the production ships, such as raised forecastle and installation of wave-breaking walls. Operational restrictions have also been introduced, including restrictions to personnel access in green water zones and storage limitations...
Proceedings Papers
Paper presented at the The Tenth International Offshore and Polar Engineering Conference, May 28–June 2, 2000
Paper Number: ISOPE-I-00-349
... of plastic deformation localization (P.D.L.) and irreversible slip generation (LS.G which are part of the fatigue crack initiation process, by calculating the cyclic deformation behavior of a FEM model of a f.c.c, crystal which reproduces the restriction caused by the neighboring rains. As results...
Proceedings Papers
Paper presented at the The Seventh International Offshore and Polar Engineering Conference, May 25–30, 1997
Paper Number: ISOPE-I-97-183
... and RAOs); number and pattern of lines, design criteria and restrictions like maximum and minimum allowable line tensions, maximum and minimum line lengths, maximum initial tension, maximum total offset, maximum horizontal distance to anchor, or any other mechanical or geometrical restrictions...
Proceedings Papers
Paper presented at the The Sixth International Offshore and Polar Engineering Conference, May 26–31, 1996
Paper Number: ISOPE-I-96-123
... with· uncertainties. The nonlinear system is linearized at nominal states. Control action is then applied to the perturbed system. The other is the bound of the uncertainty. restriction auv nominal state bode plot underwater vehicle heave velocity controller upstream oil & gas specification jctj...
Proceedings Papers
Paper presented at the The Fifth International Offshore and Polar Engineering Conference, June 11–16, 1995
Paper Number: ISOPE-I-95-177
...), and solid ice (winter). It should be noted that ice can be present during any season in concentrations (or conditions) that may require the suspension of operations. drilling equipment operator us government alaska operational safety restriction suspension mstorical operation drilling unit...
Proceedings Papers
Paper presented at the The Fifth International Offshore and Polar Engineering Conference, June 11–16, 1995
Paper Number: ISOPE-I-95-330
.... In the present paper this design problem is handled as a minimization problem, using the stress joint volume as the function to minimize; some geometry parameters as free variables, and maximum allowable stresses as restrictions A design procedure is established by combined use of one program for global response...