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Keywords: surface condition
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Proceedings Papers
Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-210
... upstream oil & gas friction coefficient subsea clamp specimen test facility sub-sea system normal force wet test coefficient load cell dry test steel surface condition surface roughness test result controls and umbilicals roughness pom-c test material contact material...
Proceedings Papers
Paper presented at the The 32nd International Ocean and Polar Engineering Conference, June 5–10, 2022
Paper Number: ISOPE-I-22-429
... with different pH and pH2S. In addition, the effect of different surface conditions and microstructures were investigated by comparing machined surface with surface preserved with mill scale which was formed during hot rolling as well as surfaces containing a local hard zone. The morphological characteristics...
Proceedings Papers
Ralf Glienke, Mathias Schwarz, Frithjof Marten, Rasmus Eichstädt, Daniela Schwerdt, Melanie Meyer, Maik Dörre
Paper presented at the The 32nd International Ocean and Polar Engineering Conference, June 5–10, 2022
Paper Number: ISOPE-I-22-488
... Society of Offshore and Polar Engineers (ISOPE) ISBN 978-1-880653-81-4; ISSN 1098-6189 www.isope.org On fatigue strength of large-size bolt-assemblies in steel constructions under consideration of manufacturing and surface condition related impacts Ralf Glienke a, Mathias Schwarz b, Frithjof Marten c...
Proceedings Papers
Paper presented at the The 29th International Ocean and Polar Engineering Conference, June 16–21, 2019
Paper Number: ISOPE-I-19-573
... non-uniform contact force research is carried out based on analytical methods. roller surface condition calculation offshore pipeline stinger fluctuation university stinger structure contact force offshore oil 201 contact force analysis ship stinger wave direction hull equation...
Proceedings Papers
Paper presented at the The 29th International Ocean and Polar Engineering Conference, June 16–21, 2019
Paper Number: ISOPE-I-19-629
... to diameter of damaged tube T/D and the surface condition. Using the test data of two different sizes of clamp models, the parameter coefficients of the empirical formula are analyzed. Parameter optimization method is also used to fit the experimental data. It is shown that the predicted values...
Proceedings Papers
Paper presented at the The 28th International Ocean and Polar Engineering Conference, June 10–15, 2018
Paper Number: ISOPE-I-18-267
... ABSTRACT Effects of surface roughness and fouling on ship resistance are analyzed by numerical simulation, the fouling covered on hull are graded through the visual inspection, three different hull surface conditions are divided corresponding to three models used to simulate by FLUENT software...
Proceedings Papers
Paper presented at the The Twenty-fourth International Ocean and Polar Engineering Conference, June 15–20, 2014
Paper Number: ISOPE-I-14-228
... it is not a simple task to directly calculate heat energy at the boundary. Simplified condition of heat flux is often used on the surface including various surface conditions, such as atmospheric temperature, condition of vegetation, constituents of the soil, etc. In this study, two methods of determining...
Proceedings Papers
Paper presented at the The Seventeenth International Offshore and Polar Engineering Conference, July 1–6, 2007
Paper Number: ISOPE-I-07-554
... free surface conditions is formulated in the scope of potential flow theory. A finite element method based on the variational principle is employed both for fluid motion and structural response. Elastic response of VLFS is analyzed by Mindlin plate model. The only surge motion is considered...
Proceedings Papers
Paper presented at the The Seventeenth International Offshore and Polar Engineering Conference, July 1–6, 2007
Paper Number: ISOPE-I-07-363
...). In the present paper, the acoustic scattering experiment of a four side free plate with acoustic beam being used as the sound source in the Semi-anechoic Room has been made in Dalian University of Technology (DUT). layer face acoustic pressure acoustic source acoustic beam surface condition...
Proceedings Papers
Paper presented at the The Sixteenth International Offshore and Polar Engineering Conference, May 28–June 2, 2006
Paper Number: ISOPE-I-06-258
... with nonlinear free surface condition was described for two-dimensional hydrofoils in (Bai and Han, 1994). An iterative panel method has been applied for surface piercing hydrofoils without cavitation in (Hsin and Chou, 1998). (Kim, 1992) and (Ragab, 1998) solved the submerged high-speed hydrofoil problem...
Proceedings Papers
Paper presented at the The Fifteenth International Offshore and Polar Engineering Conference, June 19–24, 2005
Paper Number: ISOPE-I-05-247
... cost and the memory requirements to about O(N lgN) and O(N) order respectively. time step wave elevation surface condition free surface element method boundary element method neumann boundary condition body surface engineering integral equation node influence matrix water wave...
Proceedings Papers
Paper presented at the The Fourteenth International Offshore and Polar Engineering Conference, May 23–28, 2004
Paper Number: ISOPE-I-04-279
... cylinder wave load contribution surface condition cylinder unique solution wave field Wave-Drift Added Mass of a Vertical Circular Cylinder Derived from a Moving Frame Formulation Weiguang Bao, Takeshi Kinoshita and Motoki Yoshida Institute of Industrial Science, University of Tokyo Tokyo, Japan...
Proceedings Papers
Paper presented at the The Twelfth International Offshore and Polar Engineering Conference, May 26–31, 2002
Paper Number: ISOPE-I-02-032
... 1992, Cao and Zhang 1996). amplitude spar buoy cylinder type spar buoy subsea system offshore surface condition coefficient velocity potential free surface condition platform exciting force spar platform spiral strake upstream oil & gas stability characteristic heave strake...
Proceedings Papers
Paper presented at the The Eleventh International Offshore and Polar Engineering Conference, June 17–22, 2001
Paper Number: ISOPE-I-01-289
... regions. By matching the general solutions at boundaries of adjacent regions with the aid of a generalized inner product, the solution is obtained in the matrix form. The generalized inner product is developed to deal with the membrane-covered surface condition and to incorporate the edge conditions...
Proceedings Papers
Paper presented at the The Eleventh International Offshore and Polar Engineering Conference, June 17–22, 2001
Paper Number: ISOPE-I-01-038
... inner solution is ignored, the free surface condition of this region would be a rigid boundary condition and no impact pressure could be obtained. This is the case of very small ampli- tude of incident waves. Therefore, the slamming ironer solution of the pressure up to O(e) should be taken into account...
Proceedings Papers
Paper presented at the The Tenth International Offshore and Polar Engineering Conference, May 28–June 2, 2000
Paper Number: ISOPE-I-00-314
... procedure free surface mesh wave elevation surface condition elevation vertical cylinder diffraction pattern application derivative simulation cylinder configuration diffraction potential Proceedings of the Tenth (2000) International Offshore and Polar Engineering Conference Seattle, USA, May...
Proceedings Papers
Paper presented at the The Tenth International Offshore and Polar Engineering Conference, May 28–June 2, 2000
Paper Number: ISOPE-I-00-300
... ABSTRACT There are several papers concluding that the free long waves are generated to compensate the discontinuity of the forced long waves across the harbour (or channel) mouth. But the linear waves should be continuous across the mouth and the forcing terms in the free surface condition...
Proceedings Papers
Paper presented at the The Eighth International Offshore and Polar Engineering Conference, May 24–29, 1998
Paper Number: ISOPE-I-98-045
... Seaquake forces acting on a three-dimensional floating body are studied numerically. Green function which satisfies the Helmholtz equation and fulfills the free surface condition and the sea bottom boundary condition is introduced. The solution of the seismic wave field and pressure distribution...
Proceedings Papers
Paper presented at the The Seventh International Offshore and Polar Engineering Conference, May 25–30, 1997
Paper Number: ISOPE-I-97-037
... surface condition and the plate surface condition are represented respectively as follows: v o-0 for z<0, (4) e fzB, (5) z - o, (x,y) e ~F, z - 0, (x, y) E f~R: 0¢ O--z - - 1 fo r z - 0, o¢ = 0 (6) Ot On 0¢ = o (7) Ot Oz Where, fib denotes the projection of the wetted surface of the plate on the plane z...
Proceedings Papers
Paper presented at the The Sixth International Offshore and Polar Engineering Conference, May 26–31, 1996
Paper Number: ISOPE-I-96-197
... generality and absence of any arbitrary constant in the formulation. elimination artificial intelligence bib method green function diffraction-radiation problem surface sj integral equation dimension boundary condition free surface surface condition logarithmic singularity rankine panel...
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