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The influence of composition of heat affected zone toughness of C-Mn microalloyed steels
AuthorsA M Barnes ; P H M Hart
PublisherThe American Society of Mechanical Engineers - ASME
AbstractExperimental samples of hot rolled and normalised carbon-manganese microalloyed steels were prepared for either bead-in-groove submerged arc welding or weld thermal simulation with and without subsequent heat treatment: they were then subjected to chemical analysis metallographic examination fracture toughness testing hardness measurement and fractography: the findings are used to discuss the effects of alloy composition (notably C Mn Si P Nb V Al N) on the development of microstructure and toughness in the unaltered and intercritically reheated grain coarsened heat affected zones (GCHAZ and ICGCHAZ) in the as-welded and post-weld-heat-treated (PWHT) conditions.
AuthorsDate publishedA M Barnes ; P H M Hart
1996
PublisherThe American Society of Mechanical Engineers - ASME
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The information explosion - Safety boon or bureaucratic bonanza?
AuthorsG E Kurz
Shelf Location213e
AbstractThe maritime information needs of the recent past are outlined and contrasted with the current situation of rapidly increasing quantities of data on all aspects of ships and shipping collected in various large computer databases and used to support decision making by owners operators and charterers. Particular attention is paid to the construction and use of the Mobil Ship Inspection Program a corporate database of information gained from ship inspections and to the development of SIRE (the Ship Inspection Report Program) an industry wide database of ship quality information coordinated by OCIMF (the Oil Companies International Marine Forum) and available to members and qualifying organisations. The feasibility of other projects including an IMO supported International Ship Database an ITF database and a European funded MARIS (Maritime Information Society) database is considered.
AuthorsPublisherG E Kurz
The Connecticut Maritime Association Inc
Shelf LocationDate published213e
1995
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The international submarine races: the first 19 years plus the next 19 years and beyond
AuthorsNancy Riegle Hussey ; Claude P Brancart
Shelf Location214b
AbstractThe ISR (international submarine race) is an engineering competition open to high schools colleges and university students and individuals. It presents opportunities to students to achieve excellence in areas of marine technology and ocean engineering. The ISR was conceived as a 'hook' to interest talented and motivated students to become involved in marine technology and ocean engineering. The focus of the ISR is on the engineering principles and technologies involved in the design and operation of a human-powered submarine. The paper addresses how the ISR provides the stimulus for engineering education that attracts favourable public and academic attention. Examples of the successes achieved are presented.
AuthorsDate publishedNancy Riegle Hussey ; Claude P Brancart
2008
Shelf Location214b
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The Intifante 2000 sea trial - preliminary source localisation and ocean tomography data analysis
AuthorsS M Jesus
Date published2001
AbstractThe key to current advances in the usage of acoustics for ocean exploration is being able to predict the acoustic behaviour of a given environment. INFANTE aims to develop AUVs (autonomous underwater vehicles) and includes a component of testing methods and algorithms for improving the capabilities of the underwater communication channel between the surface and a submerged vehicle. This sea trial servs a number of specic purposes. The work presented concentrates on the ocean tomography and source localisation objectives over the different bottom topography conditions and with various types of emitted signals including the noise sources. Section 2 gives an overview of the INTIFANTE 2000 sea trial including a description of the environmental characteristics such as bathymetry bottom properties and hydrology as well as the overall experiment geometry. Section 3 describes the acoustic data gathered at the VLA and shows some forward modelling and matched-field results. Some conclusions are drawn in section 4.
AuthorsS M Jesus
Date published2001
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The main ways to improve equipment control ship systems
AuthorsV V Voitetsky
Shelf Location213d
AbstractWide implementation of computers and their adaptation to the ship conditions gave impetus to development of automation systems in several ways. Some of the trends in this are noted. First attention is given to improvement of the CS structure. Next a look is taken at enhancement of automation degree and ECS intelligence followed by upgrading of power supply system and reduction in the power consumption improvement of human factor and aethetic characteristics of the systems improvement of system development technology reduction in the labour intensiveness/cost of system development and implementation of CALS-technology. Lastly development/implementation of special measures for check-out - adjustment works on the ship and at the plant-manufacturer is touched upon along with provision of electromagnetic compatibility for control systems.
AuthorsDate publishedV V Voitetsky
2003
Shelf Location213d
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The Metallurgy of Steel. Volume 2 - Mechanical Treatment. Griffin's Metallurgical Series
AuthorsF. W. Harbord and J. W. Hall
Shelf Location210b
AbstractContents include chapters on: introduction to the need for mechanical working of steel and the development of the rolling mill, reheating furnaces, types of rolling mill, types of rolling, special mills, supply of power (rolling mill engines, gas engines, electric driving), section mills, plate and sheet mills, rod mills, continuous billet, bar and strip mills, forging steel by the steam hammer and the press, compressing steel while fluid, tube-making, wire drawing, protecting steel from corrosion and the steel trade.
AuthorsPublisherF. W. Harbord and J. W. Hall
London ; Charles Griffin & Co. Ltd
Shelf LocationDate published210b
1923
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The MMS-USCG memorandum of understanding
AuthorsP J Hill
Date published2001
AbstractThe joint MMS USCG and Industry effort to update the MOU (Memorandum of Understanding) between the MMS (Minerals Management Service) and the USCG (US Coast Guard) is documented. Advances into deep water coupled with the introduction of new types of facilities particularly floating facilities had rendered the previous MOU obsolete. The EIS (Environmental Impact Statement) on FPSOs provides additional insight related to these type units. Some of the in-work issues of the process whereby joint industry and government teams seek to define and provide feedback and input into regulatory issues are explored. The challenges to implementation of the MOU which continue to be faced by the agencies are identified. The MOU is examined its applicability to FPSOs is explained and areas where further refinement is recommended are identified.
AuthorsP J Hill
Date published2001
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The MULTISPAN Project - response models for vortex induced vibrations of submarine pipelines
AuthorsL Vitali ; L E Malacari ; K J Mork et al.
PublisherAmerican Society of Mechanical Engineers - ASME
AbstractResponse models for VIV (vortex induced vibrations) of submarine pipelines are discussed. A response model for in-line VIV considering the effect of reduced velocity stability parameter turbulence intensity of the free stream current incident angle of the current and gap between the pipe and the sea bottom is proposed. The effect of these parameters on both the first and the second instability region is quantified. A semi-empirical relationship is also shown to predict the reduced velocity at the onset of cross-flow VIV taking into account the effect of the stability parameter the gap ratio and the specific mass. The uncertainties related to the response models both for in-line and cross-flow VIV are quantified.
AuthorsDate publishedL Vitali ; L E Malacari ; K J Mork et al.
1997
PublisherAmerican Society of Mechanical Engineers - ASME
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The National Shipbuilding Research Program: Engineering for Ship Production
AuthorsThomas Lamb
Shelf Location226c
AbstractThe application of the recently introduced design-for-production technique is described and illustrated through examples. However, it is suggested that this technique is not really new and that it has come about only as an individual technique because ship designers have become isolated from the actual production of ships. Once the best production-oriented designs are developed, it is necessary to transmit the design information to the various departments in the shipyard that use the information. The methods currently used to do this are based on tradition and have not changed much over many years. They are not the most suitable for the efficient production of ships. Therefore, improvements to the existing shipyard engineering methods are presented, and as such are the basis for engineering for production.
AuthorsPublisherThomas Lamb
SNAME Ship Production Committee, 1986
Shelf LocationDate published226c
1986
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The nautical almanac 1996
AuthorsHer Majesty's Nautical Almanac Office
Shelf Location227e
AbstractThis volume provides essential astronomical information for every kind of sea-going vessel, from cruise liners to fishing boats. It is prepared jointly by HM Nautical Almanac Office at the Royal Greenwich Observatory and the Nautical Almanac Office at the United States Naval Observatory, to meet the requirements of the Royal Navy and the US Navy. The Almanac contains tabulations for the Sun, Moon, planets and stars for use in the determination of position at sea from sextant observations. In addition, it gives times of sunrise, sunset, twilights, moonrise and moonset, for use in planning of observations; all necessary interpolation and altitude correction tables; the phases of the Moon; a pole-star table; diagrams and notes for the identification of stars and planets; information on eclipses of the Sun and Moon; and the standard times of most countries of the world.
AuthorsPublisherHer Majesty's Nautical Almanac Office
London: HMSO, 1995
ISBN number117728144
Shelf LocationDate published227e
1995
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The numerical simulation of LNG sloshing with an improved volume of fluid method
AuthorsErwin Loots ; Wouter Pastoor ; Bas Buchner et al.
Date published2004
AbstractWith the trend towards offshore LNG production and offloading sloshing of LNG in partially filled tanks has become an important research subject for the offshore industry. LNG sloshing can induce impact pressures on the containment system and can affect the motions of the LNG carrier. So far LNG sloshing was mainly studied using model tests with an oscillation tank. However the development of Navier-Stokes solvers with a detailed handling of the free surface nowadays allows the numerical simulation of sloshing. It should be investigated however how accurate the results of this type of simulations are for this complex flow problem. The present paper first presents the details of a numerical model an improved Volume OF Fluid (iVOF) method. Comparisons are made with sloshing model test results.
AuthorsErwin Loots ; Wouter Pastoor ; Bas Buchner et al.
Date published2004
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The ocean observatories initiative: wiring the ocean for interactive scientific discovery
AuthorsAlexandra R Isern
Date published2006
AbstractThe National Science Foundation's Division of Ocean Science has established the Ocean Research Interactive Observatory Networks (ORION) Program to operate and manage existing and future ocean observing sites funded by NSF including those constructed by the Ocean Observatories Initiative (OOI). The OOI is an integrated observatory system with three elements: 1) deep-sea buoys with capabilities appropriate to the experiments they will host 2) a regional electro-optical cabled network and 3) new construction or enhancements to existing facilities leading to an expanded network of coastal observatories. These three components are linked through a forward-looking cyber-infrastructure. This paper provides an update on current activities related to the OOI Project and the ORION Program.
AuthorsAlexandra R Isern
Date published2006
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The operation of autonomous underwater vehicles ; Volume 1 : Recommended code of practice for the operation of autonomous underwater vehicles 2nd edition
AuthorsSociety for Underwater Technology
Shelf Location232c
AbstractThis is the first update since the 1st edition was published in 2000. Since then a great deal of experience has been gained in the operation of these vehicles, and related matters - such as insurance and the legal aspects - informs this update. Since any AUV will spend time on the surface, the code has been extended to include this, and the vehicles are now classified as autonomous marine vehicles (AMVs).
AuthorsPublisherSociety for Underwater Technology
Society for Underwater Technology
ISBN number906940516
Shelf LocationDate published232c
2009
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The performance safety and production benefits of SPS structures for double hull tankers
AuthorsMartin A Brooking ; Stephen J Kennedy
Date published2004
AbstractSince being introduced to the marine and civil industries ten years ago SPS (sandwich plate system) has evolved steadily. It offers unique benefits including reduced structural complexity and production costs enhanced safety and environmental protection improved space utilisation and passenger-crew comfort. SPS technology represents a step-change in ship construction and repair. The latest advances in SPS technology are described using the design of a 14k dwt tanker. Summaries of current development projects and the latest programme of testing are presented. In addition a view is given on how SPS technology is likely to impact tanker new construction and repair over the coming years.
AuthorsMartin A Brooking ; Stephen J Kennedy
Date published2004
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The physical behaviour of crude oil during transportation and its impact upon the carriage of crude oil by sea
AuthorsT J Gunner
Date published2001
AbstractA research programme is presented which looks at three identified phases of crude oil that create problems onboard tankers: vapour liquid and sludge. Data is collected from numerous participating vessels which provided crude oil samples for analysis. Subsequent empirical modelling of a proportion of the data has allowed equations to be created that will help vessels' commands to gain an insight into cargo behaviour and will assist in decision making for operational matters. The initial information is presented together with the models developed as a result of this extensive piece of data collection and work. Diagrams appear on pages 10-17.
AuthorsT J Gunner
Date published2001
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The potential of gas turbines with complex cycles
AuthorsD Stapersma
PublisherIMarE Conferences and Symposia
AbstractA short study carried out at the Royal Netherlands Naval College (RNLNC) to investigate the potential of a number of proposed gas turbine cycles is described. Complex gas turbines have one or more of the following features added to the simple cycle: intercooling between compressor stages heat addition by recuperation of heat form the exhaust gases through a heat exchanger or one or more reheat steps. The different complex cycles are compared on the basis of a trade-off between overall efficiency and power density expressed as specific power in kJ/kg. The overall optimisation of gas turbine cycles with respect to either efficiency (etaopt) or power density (workopt) are explained. Complex gas turbine cycles optimisation for maximum specific work or efficiency trade-off between efficiency and specific work exhaust temperature and combined cycle potential combined cycles and steam injection and water injection are discussed.
AuthorsDate publishedD Stapersma
1999
PublisherIMarE Conferences and Symposia
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The problem of synthesis of the most effective system for supporting a heat balance in a diving chamber of the hyperbaric lifeboats
AuthorsO A Kozyrko ; Y V Zacharov ; E I Trushlyakov et al.
Date published1997
AbstractHyperbaric lifeboats are used to rescue deep sea divers. Problems of the design of the most effective system of supporting a heat balance of divers in a pressure chamber of hyperbaric lifeboats and the concept of its efficiency are discussed. The complex criterion of efficiency of the life-supporting systems (LSS) is considered. The method of estimation of reliability of LSS on the basis of modified Kvirk's index is presented.
AuthorsO A Kozyrko ; Y V Zacharov ; E I Trushlyakov et al.
Date published1997
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The professional profile of a maritime english instructor (PROFS): an interim report
AuthorsC Cole ; B Pritchard ; P Trenkner
Shelf Location213c
AbstractAn urgent need to establish a sound well-structured profile of a qualified Maritime English instructor for higher MET institutions has been established. The Professional Profile of a Maritime English Instructor (PROFS) project aims to create generally accepted guidelines/recommendations for MET institution management on how to qualify teachers of general english and others of substandard maritime-technical qualifications currently teaching English to navigational/marine engineering university students to become lecturers in Marititme English meeting the requirements of the relevant legislation and also to provide prospective candidates to a Maritime English teaching profession with an idea of what will be expected from them should they wish to instruct navigational/marine engineering students at university level. The project's methodology and preliminary observations are outlined. The final outcome is due at the end of 2005.
AuthorsPublisherC Cole ; B Pritchard ; P Trenkner
Southampton ; WIT Press
Shelf LocationDate published213c
2005
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The protection of underwater cultural heritage - an academic exercise unless there is a sharing of the spoils
AuthorsRoger Field
Date published2000
AbstractThe draft convention on the Protection of Underwater Cultural Heritage seeks to exclude the application of salvage law as well as all internal laws and regulation which provide a commercial incentive for the excavation and removal of artefacts coins cargo etc which have been under water for at least 100 years. The convention is in danger of becoming a well-meaning but academic exercise without the gold incentive. A history of three wrecks carrying gold are described - the Doddington1755 the Brederode 1785 and HMS Birkenhead 1852. The factors which motivated ICOMOS to draw up a charter intended to protect and manage underwater cultural heritage is discussed together with the principal features of the draft convention.
AuthorsRoger Field
Date published2000
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The Rebirth of UK Engineering: The Hawley Review and the creation of the Engineering and Technology Board
AuthorsMichael Letellier
Shelf Location234a
AbstractBob Hawley was appointed Chairman of the Engineering Council in 1999. He recognised that changes were necessary to avoid the increasing marginalisation of UK engineering, particularly in a world where technological change had meant the boundaries of engineering had drastically changed; there were engineers who saw the old engineering institutions and Engineering Council as having no relevance to their work. This book sets out the process of reform as the problem was defined, analysed, possible solutions identified, those solutions explored with key stakeholders, and then an optimum path selected for action. In this case the solution was the new structure of the Engineering and Technology Board, being launched in 2002 as this is being written. Content includes a chapter on the context for change, the Hawley group (with interviews), looking outside the Hawley group (with interviews of people from IMarEST, IIE and InstE) and the reaction and feeling of business leaders, the shadow Board and the Engineering and Technology Board.
AuthorsPublisherMichael Letellier
Watford : Training Publications, 2003.
Catalogue number621.38
Shelf LocationDate published234a
2003
ISBN number1840190221