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Effect of soft root weld layer on fracture toughness of under-matched weld joints on Q+T steel
AuthorsI Rak ; V Gliha ; Z Praunseis et al.
PublisherThe American Society of Mechanical Engineers - ASME
AbstractSamples of quenched and tempered high-strength low-alloy steel (HT 80) were multipass welded to give undermatching homogeneous or heterogeneous welds with soft root passes: impact toughness and CTOD (Crack Tip Opening Displacement) were determined and correlated with joint characteristics.
AuthorsDate publishedI Rak ; V Gliha ; Z Praunseis et al.
1996
PublisherThe American Society of Mechanical Engineers - ASME
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Effects of hull length on the hydrodynamic loads on a slender underwater vehicle during manoeuvres
AuthorsC D Williams ; T L Curtis ; J M Doucet et al.
Date published2006
AbstractExperiments were performed with the bare hull of a full-scale slender body-of-revolution underwater vehicle of five different lengths using an internal three-component balance and a planar motion mechanism (PMM). The experiments included resistance static yaw dynamic sway and yaw and circular arc runs. Results from the resistance static yaw and sway runs are presented.
AuthorsC D Williams ; T L Curtis ; J M Doucet et al.
Date published2006
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Effects of Soil Information on Economics of Jackup Installation
AuthorsD A Geer ; S D Devoy ; V Rapoport
Date published2000
AbstractThe economic impact of quality and availability of site soil information on safe jackup installation is looked at. Preload operations based on sufficient and on limited (or insufficient) soil data are analyzed. Reliability and applicability of a variety of soil information sources are discussed. The time to preload can be significantly reduced if sufficient soil information is available.
AuthorsD A Geer ; S D Devoy ; V Rapoport
Date published2000
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Experience of the Indian Ocean Tsunami on the Sri Lankan coast
AuthorsS Hettiarachchi ; S Samarawickrama
Date published2005
AbstractA summary of the initial efforts in understanding the Indian Ocean Tsunami and its hydraulic impact on the coastline of Sri Lanka. Attention is focused on the hydraulic processes which led to large scale inundation analysis of wave-current measurements recorded offshore of Colombo Harbour and describes post tsunami field investigations to assess the overall impact on the coastline. The need for modelling potential tsunamis is identified and issues relating to the planing of countermeasures briefly discussed.
AuthorsS Hettiarachchi ; S Samarawickrama
Date published2005
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Experimental study on static strength of corrosive mild steel
AuthorsM Oka
Date published1990
AbstractA paper confirming that corrosive mild steel members in some cases show a decrease in ductility that is elongation. Furthermore it has been found that this phenomenon has been brought about by corrosive pits formed on their surfaces. The effects of corrosive pits on static strength have been studied parametrically by the simulation test in which artificial pits are formed on the surfaces of test specimens.
AuthorsM Oka
Date published1990
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Hydrodynamic forces on a submerged plate
AuthorsMikio Takaki
Date published2001
AbstractIn this paper numerical simulations are created to make clear the mechanism of hydrodynamic characteristics on the submerged horizontal plates by applying the Marker and Cell method (MAC method). First the numerical method is validated by comparing it with the experimental results. Then the flow field around the submerged-plate is discussed by using the numerical results. Finally the transmission wave coefficient and the hydrodynamic forces and moments acting on the submerged-plate are estimated and the effect of inclination of the submerged-plate on them is discussed.
AuthorsMikio Takaki
Date published2001
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Ice and earthquake loads on a structure in the Okhotsk Sea: annual report of the JOIA project FY1998
AuthorsK Kato
Date published2000
AbstractJOAI (Japan Ocean Industries Association) has been organising the research project 'Study on Ice Load Acting on Marine Structures' since 1993. The research was undertaken because it was recognised that cold regions especially ice-covered waters were recognized as regions which were important for future developments of natural energy resources. In this paper the main outcomes of the studies during FY1998 carried out by the project are briefly described. In addition on-going studies are briefly introduced.
AuthorsK Kato
Date published2000
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MAIB - Report of the Chief Inspector of Marine Accidents into the explosion on the motor tanker Esso Mersey on 4 September 1991 resulting in the loss of two lives
AuthorsMAIB
PublisherDepartment of Transport (DOT)
AuthorsDate publishedMAIB
1992
PublisherDepartment of Transport (DOT)
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Nonlinear and non-Gaussian effects on TLP tether responses
AuthorsJ Zou ; E W Huang ; C H Kim
Date published1999
AbstractA series of comparison studies are conducted to investigate nonlinear wave loads effects on TLP tether which include the axial tension bending moment interaction ratio utilization ratio and nonlinear and non-Gaussian effects on tether extremes and fatigue damage. After some introductory information an outline is given of theoretical wave loads in time domain. Next dynamic equation of coupled TLP system is looked at followed by interaction ratio and utilization ratio nonlinear and non-Gaussian correction factors experimental measurements benchmark axial tether tension in fatigue sea state and extreme tether bending moment. Lastly nonlinear and non-Gaussian effects on tether fatigue life are addressed.
AuthorsJ Zou ; E W Huang ; C H Kim
Date published1999
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OMAE 1997 & POAC 1997 - 16th International Conference on Offshore Mechanics and Arctic Engineering & 14th International Conference on Port and Ocean Engineering under Arctic Conditions Yokohama Japan 13-17 Apr 1997 Volume IV Arctic/Polar technology
AuthorsOMAE
Shelf Location216b
AuthorsPublisherOMAE
American Society of Mechanical Engineers - ASME
Shelf LocationDate published216b
1997
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Report of the investigation into the loss of the Bahamian registered tanker "Prestige" off the northwest coast of Spain on 19th November 2002
AuthorsBahamas Maritime Authority
Shelf Location15d
AbstractReport on the loss of the Bahamian tanker Prestige, which broke in two and sank on Tuesday 19th November 2002 with a large amount of her original cargo of 76,972 tonnes of fuel oil still on board. The incident occurred off the North West coast of Spain.
AuthorsPublisherBahamas Maritime Authority
Bahamas Maritime Authority
Shelf LocationDate published15d
2004
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Small is Beautiful on the UKCS
AuthorsMER
Date published1991
AbstractThis article describes how with the decline of large UK fields such as Brent and Forties and with an estimated 70 percent of reserves still untapped the emphasis on development is now on smaller fields many operating as satellites to larger declining fields. An oil boom to 1993 is foreseen as fields such as Piper B and Miller come on stream. The issues of cost-cutting the northern North Sea and the Osprey and Saltire developments are also discussed.
AuthorsMER
Date published1991
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The influence of grouping on the force characteristics of pairs of vertical surface-piercing cylinders
AuthorsD Smith ; N Haritos
Date published1997
AbstractResults are presented of an investigation of the modifications to the in-line Morison force coefficients on individual vertical surface piercing cylinders within cylinder groups associated with group interference effects determined from an experimental study carried out in the University of Melbourne's Michell Laboratory wave flume. Attention is focussed on results relating to the current experimental program carried out on cylinder pairs oriented in-line and transverse to the wave direction in irregular wave conditions.
AuthorsD Smith ; N Haritos
Date published1997
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The influence of roughness of wing's surface on lift and attack sideslip angles
AuthorsV A Tjushkevich ; Y A Yogovoy
Date published2001
AbstractTests are carried out on a rectangular wing with a relative thickness of 20% and one sweep wing with a limited wingspan at positive attack corners. The effect of elements present on the wing's surface - longitudinal edges disks spoilers rough strips - are considered and their effect on the lift coefficient Cy. Results are shown and conclusions listed.
AuthorsV A Tjushkevich ; Y A Yogovoy
Date published2001
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The need for a more balanced supply/demand shipping investment decision making framework with particular emphasis on macroeconomic influences on the world economy
AuthorsC Th Grammenos
PublisherIMarE Conferences and Symposia
AbstractConsideration is given to certain macroeconomic factors that influence the world economy and an explanation is provided as to why they should be incorporated into a more balanced supply/demand shipping investment decision making framework. Attention is paid to the financial and economic elements which have contributed to the decline in shipping from the mid-1970s onwards.
AuthorsDate publishedC Th Grammenos
1989
PublisherIMarE Conferences and Symposia
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The rate effect on pc value for nine undisturbed marine clays
AuthorsH Tanaka ; O Mishima ; M Tanaka
Date published2000
AbstractABSTRACT The rate effect on the Pc (consolidation yield pressure) is investigated for nine undisturbed marine clay deposits obtained from various countries including Japan. A series of laboratory tests are run on these samples under various strain rates using a CRS (constant rate of strain) oedometer test. An attempt is made to investigate the effect of the strain rate on Pc and to correlate it with the fundamental properties of soil such as index properties.
AuthorsH Tanaka ; O Mishima ; M Tanaka
Date published2000
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BSRA Technical Memorandum No. 127 Reports on foreign observers' course on the nuclear ship 'Savannah'. Shipyard Practice
AuthorsJ A Dodd ; S Macdonald
Shelf Locationin storage
AuthorsPublisherJ A Dodd ; S Macdonald
British Ship Research Association
Shelf LocationDate publishedin storage
1960
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Development of Shipbuilding on the Upper Reaches of the Clyde (2nd copy - in Archive, first copy on shelf 21)
Catalogue number720.117
Catalogue number720.117
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Report on the investigation of the contact between Pride of Provence and The Southern Breakwater, Dover Harbour, eastern entrance on 18 April 2003
AuthorsMarine Accident Investigation Branch
Shelf Location40d
AuthorsCatalogue numberMarine Accident Investigation Branch
UNK
Shelf Location40d
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BSRA Report NS. 207 Marine Engineering Report No. 107 Summary Report on Pulsator Fatigue Tests on Gear Teeth
AuthorsJ West
Shelf Locationin storage
AuthorsPublisherJ West
British Ship Research Association
Shelf LocationDate publishedin storage
1968