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Influence of quality management systems on the environmental changes and the work conditions in industry
AuthorsD Zawanda-Michulka ; R Strulak ; A Al-Hassan
Date published2001
AbstractThe influence of quality management systems on the environmental changes and work conditions in industry is introduced. A system based on the issued of ISO norms series 9000 is discussed. It is concluded that the application of these technologies (quality management systems) will allow for much more efficient solutions of company management problems and flexible disposability in terms of environmental conditions.
AuthorsD Zawanda-Michulka ; R Strulak ; A Al-Hassan
Date published2001
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Influence of water depth on microstructure and mechanical properties of wet welds
AuthorsA M Pope ; J C G Teixeira ; M P Paes et al.
PublisherAmerican Society of Mechanical Engineers - ASME
AbstractThe effects of depth of welding on the chemical composition degree of porosity inclusion content and the relative quantity of reheated zone in the weld metal deposited by oxidising electrodes containing limited amounts of nickel were investigated. Based on wet welding experiments with oxidising electrodes in depth of up to 20m it was found that porosity increased; weld metal carbon manganese silicon nickel and oxygen contents were not significantly affected; inclusions remained constant; and tensile strength and impact resistance decreased.
AuthorsDate publishedA M Pope ; J C G Teixeira ; M P Paes et al.
1997
PublisherAmerican Society of Mechanical Engineers - ASME
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International convention on oil pollution preparedness response and co-operation - an overview
AuthorsA Mahapatra
PublisherInstitute of Marine Engineers (India)
AbstractThe basic provisions of the 1990 IMO International Convention on Oil Pollution Preparedness Response and Co-operation are outlined and include: the preparation of an emergency plan (Article III); oil pollution reporting procedure (Article IV); action on receiving an oil pollution report (Article V); national and regional response systems (Article VI); inter-state co-operation (Article VII); research and development (Article VIII); technical co-operation (Article IX); and the promotion of bilateral and multilateral co-operation (Article X). Resolution 8 Improving Salvage Service is also considered.
AuthorsDate publishedA Mahapatra
1994
PublisherInstitute of Marine Engineers (India)
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Lessons on the engine room simulator for beginners compared to those for experienced ship's engineers
AuthorsAlbin Zeleznik
Date published2005
AbstractA teacher at a secondary vocational maritime school describes his experience of using simulators with students. Firstly the Slovene general and marine education is described. The secondary vocational maritime school (course lasts 4 years. Having completed the secondary school program and a 1-year training period on board ship as engine cadets students are allowed to sit for an examination for engineers on engine room watch with engine capacity ranging above
AuthorsAlbin Zeleznik
Date published2005
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MARIN model tests - green seas hatch loading on bulk carriers
AuthorsGuilhem Gaillarde ; Zing Zheng
Date published2001
AbstractA look is taken at the model test techniques and analysis methods used during the extensive study on bulk carrier hatch cover loading. The tests took place in 2000 and 2001 and were undertaken for two Capesize bulk carriers and one Panamax bulk carrier. First the vessels are looked at. Next details of instrumentation are given followed by the test facility and the test program. General comments on the experiments and analysis are given. Lastly the results are considered.
AuthorsGuilhem Gaillarde ; Zing Zheng
Date published2001
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New developments on crankcase relief valves give optimum engine room safety
AuthorsM Digruber ; J Besau ; J Hruby
Date published2001
AbstractExplosion relief valves are used on diesel gas and dual- fuel engines to protect against explosions in the crankcase backfire into the inlet duct or misfire into the exhaust systems. Latest developments on explosion relief valves give optimum engine room safety. A relief valve design with a proven 'zero flame escape' features result from an extensive explosion test series and theoretical calculations.
AuthorsM Digruber ; J Besau ; J Hruby
Date published2001
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Nonlinear wave-structure interactions on floating production systems
AuthorsC T Stansberg ; F G Nielsen
Date published2001
AbstractResults from two model test studies on an FPSO and a vertical column respectively are presented. The aim is a detailed investigation of interactions between steep ocean surface waves and floating structures. First green sea on an FPSO in irregular storm waves with moderate wavelengths is considered. Secondly run-up and diffraction of regular and irregular waves around a fixed vertical column is investigated.
AuthorsC T Stansberg ; F G Nielsen
Date published2001
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On acoustical designing of small vessels
AuthorsK Juras
Date published2000
AbstractThe importance of the early introduction of acoustic principals in the design process of small vessels is explained. Measures for reducing noise at identified noise sources are considered. The noise propagation paths are identified and the effects of the arrangement and acoustical treatment of ship accommodation and working spaces on noise levels is discussed. The effects of disposable measures of their acoustical treatment and the importance of correctly chosen acoustic materials on sound energy propagation and attenuation are considered. Permissible noise level criteria are identified.
AuthorsK Juras
Date published2000
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On the improvement of ship manoeuvring simulation in restricted waters by means of captive model test results
AuthorsM Vantorre ; R S Burns
PublisherComputational Mechanics Publications
AbstractA number of possibilities to improve the mathematical model of a ship manoeuvring simulator based on results of captive manoeuvring tests with ship models are discussed. Most topics involve simulating ship manoeuvres in quite extreme conditions such as very shallow water harbour manoevres at low and reversed speed and effects due to lateral restrictions. A validation technique for mathematical models is discussed. This is based on captive model tests.
AuthorsDate publishedM Vantorre ; R S Burns
1995
PublisherComputational Mechanics Publications
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Prediction of vibro-acoustic parameters on a cruise ship
AuthorsMarek Iwaniec ; Jerzy Wiciak
Date published2002
AbstractAdvanced computer programs are often used as design tools. These programs enable mechanical problems to be solved numerically. Packages based on the finite element method can be used effectively to predict the dynamical behaviour of the structure at the design stage. The numerical analysis of the hull of a passenger ship whose FEM model is based on the technical specification is considered. Estimated values of acoustic pressure are compared with measurement results. Furthermore the applicability of computer models to predictions of dynamic behaviour of complex structures is evaluated.
AuthorsMarek Iwaniec ; Jerzy Wiciak
Date published2002
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Progressive development of two-stroke engine tribology
AuthorsKonrad Rass ; Matthias Amoser
Date published2007
AbstractReliable Piston running is still one of the key functions of a diesel engine. Today piston-running behaviour and its effect on the wear of piston rings and cylinder liners are one of the determining factors for the TBO (time between overhauls) achieved by low-speed two-stroke marine diesel engines. They also have a major influence on ship operating costs. This paper reports on the development work undertaken in recent years for piston-running tribology in Wartsila large-bore low-speed two-stroke marine diesel engines to meet these targets. The main emphasis is on the development work concentrating on the RTA96C and RT-flex96C engines.
AuthorsKonrad Rass ; Matthias Amoser
Date published2007
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Ridge ice loads on proposed faceted conical structure
AuthorsZ Wang ; D B Muggeridge ; K R Croasdale
Date published1997
AbstractTo simplify fabrication and reduce construction costs the oil industry has proposed using a multifaceted shape to replace a smoothly curved surface for conical offshore structures. A test program was undertaken to study the mechanism of ice interaction with the new structure. Test results and analysis are presented. The effect of the ridge width and structure orientation on crack pattern and maximum ridge loads was analysed. The influence of neck size on global loads was also investigated.
AuthorsZ Wang ; D B Muggeridge ; K R Croasdale
Date published1997
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Scale effects on foils and fins in steady and unsteady flow
AuthorsF van Walree ; H R Luth
Date published2000
AbstractThere has been an increase in the use of foils on high-speed and-or advanced craft in the last ten years. Scale effects on foil lift and drag are described for low Reynolds number conditions typically encountered during model testing. Both steady and unsteady flow conditions are addressed. Experimental data are discussed which illustrate scale effects. Some strategies to control scale effects are reviewed.
AuthorsF van Walree ; H R Luth
Date published2000
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Second international conference on fast sea transportation Yokohama Japan December 13-16 1993 Volume 1
AuthorsVarious
Shelf Location223a
AbstractProjects and Concepts 1 Papers are Comfort enquiry and motion measurement during commercial passenger service on the French SES Agnes 200 - Skorupka and Perdon Agnes 200 structural evaluation - Picart Agnes 200 up to date technical information and potential use for commercial and military applications - Guezou The second stage of TSL-A Program - Ozawa et al Integrated structural design and strength evaluation system for TECHNO SUPERLINER A - Sueoka et al Research on hydrodynamic performance of TSL A - Kusaka et al
AuthorsPublisherVarious
Society of Naval Architects
Shelf LocationDate published223a
1993
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Simulation of ice loads on a conical shaped structure - comparison with experimental results
AuthorsK Kato ; K Izumiyama
Date published1997
AbstractIce loads on conical structures obtained by three methods - the experimental ice loads obtained by an ice tank experiment a theoretical method and a numerical method - were compared. The proposed numerical method gave better simulation of total ice loads on a conical structure. The method simulated crack pattern and ice force.
AuthorsK Kato ; K Izumiyama
Date published1997
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Study of cavitation on a finite span foil with sweptback planform
AuthorsH Yamaguchi ; H Kato ; N Takasugi et al.
Date published1995
AbstractExperiments and computations were made for a 45 deg. sweptback hydrofoil with aspect ratio of 3 and the section shape of NACA0012. The results were compared with those of the non-sweptback elliptic planform foil. Lift and drag coefficients limiting flow on the foil surface and velocity distribution around tip vortex were measured both in cavitating and non-cavitating conditions. The computations on the viscous flow around the foil were used along with these experiments for discussions of the flow and cavitation structure around the sweptback foil.
AuthorsH Yamaguchi ; H Kato ; N Takasugi et al.
Date published1995
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Taking the Automated Bridge Concept on Board
AuthorsMER
Date published1991
AbstractThis article describes the use of a Ship Operations Centre (SOC) on Hapag-Lloyd's newbuildings which have been fitted as standard since 1989. The SOC allows a multi-purpose officer to run the entire ship. The company's Broad Management Centre (BMC) which deals with administrative functions and the use of the Inmarsat system are described. Problems with data transmission on local networks and software are mentioned and the value of building a full-scale model of the SOC divided into designated sections is detailed.
AuthorsMER
Date published1991
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The Effect of Bow Flare Angle on FPSO Green Water Loading
AuthorsB Buchner ; A Voogt
Date published2000
AbstractIn this paper green water at the bow of weathervaning FPSOs is investigated. The paper first discusses the waterheight on deck. Then a method to predict the water velocities is described. Finally a way to determine green water loads on structures at deck is presented. For these three quantities the relation with the freeboard exceedance level is given.
AuthorsB Buchner ; A Voogt
Date published2000
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The effect of mud on tanker manoeuvres
AuthorsR Sellmeijer ; G Van Oltmerssen
Date published1984
AbstractFollowing problems with mud collection in the channels of Europoort Rotterdam a series of model tests were carried out to examine the effects of bottom mud/sediment layers and ship speed/keel clearance on the manoeuvrability (turning circle zig zag) and vessel sinkage (squattrim) of deep draught tankers in wide restricted depth channels with different thicknesses and densities of bottom contamination. A mathematical model has been developed based on the results.
AuthorsR Sellmeijer ; G Van Oltmerssen
Date published1984
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The effects of changes in energy balance and impact on maritime transportation
AuthorsE G Frankel
Shelf Location207a
AbstractThe paper presents a review of energy supply, demand and reserves, and analyses the effect of changes in energy balance. The potential development and cost of alternate fuel sources and methods of energy conversion is discussed and the impact of changes in energy balance on transport demand, transport technology and transport energy consumption is studied. The paper presents some of the expected effects on maritime transportation technology and operation.
AuthorsPublisherE G Frankel
Haifa ; Israel Shipping Research Institute
Shelf LocationDate published207a
1974