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Conf held in July 1979 in London Papers are Environmental loadings on concrete cooling towers - types likelihood effects and consequences Numerical simulation of three-dimensional separated flow; a first step Wind loading on structures Safety considerations for natural draught cooling towers under wind load Dynamic effects of wind on offshore towers Effects of soil-structure interaction on the dynamic along-wind response of structures The wind induced dynamic response of the Wye bridge Investigation on the vibrational behaviour of a cable-stayed bridge under wind loads A study of the measured and predicted behaviour of a 46-storey building Experimental study of wind forces and wind-induced vibrations at a steel lighthouse tower Simplified models of large-wind-turbine open-truss tower Wind loading and missile generation in tornado Earthquake floor response and fatigue of equipment in multi-storey structures An integrated procedure to compute wave loads on hybrid gravity platforms Wave forces on elliptical cylinders by finite element method Dynamic analysis of marine risers involving fatigue and corrosion Spectral dynamic fatigue analysis of the ANDOC DUNLIN `A' platform A computational approach for the analysis of fixed offshore structures including piling Slam load histories on cylinders Theoretical analysis on the transverse motion of a buoy by surface wave Probabilistic design of a fibre-reinforced concrete floating pontoon A structural problem of piers resting on piles

A test apparatus based on a medium speed four stroke cycle diesel engine was used with different combustion chambers to study the effects of chamber height and shape on engine performance (fuel consumption exhaust) in a range of injection conditions (nozzle holes injection angle); particular attention is paid to the growth and free movement of the fuel spray and its interaction with the chamber walls and its effective mixing with the combustion gas.

This paper brings INTERTANKO (the International Association of Independent Tanker Owners) comments on the United Nations Conference on Conditions for Registration of Ships. The comments are intended as being a non-lawyers’ companion to the Convention text. The aim is that the comments shall be reasonably short and readable. The comments are on the 1986 UN Convention on Conditions for Registration of Ships.

This paper describes a series of experimental studies on the dynamic behaviour of buried pipe in liquefied ground by using a shaking table model test. The test was performed to examine the external forces acting on the pipe of which one end was connected to a stationary structure during the liquefaction of ground. The connection joint of pipe to the structure was either a ball type flexible joint or a fixed joint. Also in the test the direction of shaking was varied from the longitudinal direction to the direction normal to the pipe.

In this paper the influence of the transverse location of the rudder on lift drag stall and on the interaction phenomena is discussed including the effects of the wake field and the propeller induced velocity field on the flow conditions in the rudder plane. Analysis on the relevant frequency range of rudder motions for fast non-planing monohulls operating in waves is presented. The dynamic effects of steering on the rudder forces are studied.

The protective behaviour of chromia-rich scales grown on stainless steels is mainly dependent on their chemical and mechanical properties. In situ growth and thermal stresses measurements on chromia-rich scales grown on ferritic stainless steels are reported as well as adhesion measurements of these scales on their substrate. Experimental procedures are described and results are presented and discussed. Finally conclusions are drawn.

These reports are part of the Port Series which cover the principal United States coastal, Great Lakes, and inland ports. In the library, we have the following editions: 1. Port Series no. 62, Revised 1991: The Port of Cincinnati, Ohio and Ports of Ohio River, Miles 317-560 2. Port Series no. 61, Revised 1992: The Port of Huntington, WV and Ports on Ohio River Miles 40 to 317 and Kanawha River, WV 3. Port Series no. 60, Revised 1992: The Port of Pittsburgh, PA, Ports on the Ohio, Monongahela, and Allegheny Rivers, PA 4. Port Series no. 70, Revised 1992: The Port of St. Louis, Missouri and Ports on Upper Mississippi River miles 0 to 300 AOR 5. Port Series no. 71, Revised 1993: Ports of Memphis, TN; Helena, AR; and Ports on lower Mississippi River (miles 620 to 954 AHP) 6. Port Series no. 4, Revised 1994: Ports of Southern New England – Bridgeport, New Haven, Connecticut River, New London, Providence, Fall River, New Bedford, Fairhaven 7. Port Series no. 69, Revised 1994: Port of Minneapolis – St. Paul, MN and ports on upper Mississippi river (Miles 300 TO 860 OAR) 8. Port Series no. 39, New Edition 1994: The Ports of Southwest and western Alaska 9. Port Series no. 48, Revised 1995: The Port of Milwaukee, Wisconsin and ports on Lake Michigan 10. Port Series no. 46, Revised 1995: The Port of Chicago, Illinois 11. Port Series no. 45, Revised 1996: The Ports of Detroit and Monroe, and Ports on The Saginaw River, Michigan 12. Port Series no. 37, Revised 1998: The Ports of Port Angeles, Port Townsend, Anacortes, Everett, and Bellingham, WA 13. Port Series no. 50, Revised 1999: Ports of Hawaii: Honolulu, Barbers Point, Port Allen, Nawiliwili, Kaunakakai, Kaumalapau, Manele-Bay, Lahaina, Kahului, Kawaihae, Kona, Hilo 14. Port Series no. 5, Revised 1999: The Port of New York, NY and NJ and ports on Long Island, NY 15. Port Series no. 49, Revised 2000: The Ports of Duluth, MN, and superior, WI, Taconite Harbour, Silver Bay, and Two harbors, MN, and Ashland, WI 16. Port Series no. 43, Revised 2000: Port of Cleveland, Ohio 17. Port Series no. 1, Revised 2001: Ports of Portland, Maine and Portsmouth, New Hampshire and Ports on the Kennebec and Penobscot Rivers, Maine 18. Port Series no. 33, Revised 2001: Ports on the Oregon coast 19. Port Series no. 42, Revised 2001: United States Ports on Lake Erie – Erie, PA and Conneaut, Ashtabula, Fairport Harbor, Lorain, Huron, and Sandusky, Ohio 20. Port Series no. 41, Revised 2001: Ports of Buffalo, Rochester, Oswego, and Ogdensburg, New York 21. Port Series no. 36, Revised 2002: Port of Seattle, Washington 22. Port Series no. 44, Revised 2000: Port of Toledo, Ohio 23. Port Series no. 68, Revised 2002: Ports on the Arkansas, Red, and Ouachita River Systems and Missouri River 24. Port Series no. 35, Revised 2003: Ports of Tacoma, Olympia, and Grays Harbor, Washington 25. Port Series no. 38, Revised 2003: Ports of Southeast Alaska: Metlakatla, Ketchikan, Hollis, Thorne Bay, Hydaburg, Craig, Klawock, Wrangell, Petersburg, Kake, Juneau, Angoon, Haines, Skagway, Sitka, Pelican, Gustavus, Hoonah, Yakutat

The ro-ro passenger ship 'Estonia' sank in 1994 because she a large amount of water flooded her vehicle deck. To prevent further such disasters the safety of damaged ro-ro passenger ships has been discussed by IMO. The validity of a time domain simulation method is investigated for the rolling motion of a ro-ro passenger ship with a flooded vehicle deck expressed by a 2D lump mass concept. Model experiments using different amounts of water on deck were carried out to confirm the effectiveness of the method in regular beam waves. As a result the simulation method on rolling motion shows a reduced roll response caused by moving water on deck. Roll amplitudes obtained from the simulation are in good agreement with experimental ones. The present method could be used to assess the safety of ro-ro passenger ships with damaged holes and floodwater on deck.

Conf held in London 18 - 19 May 1977 Papers are Fundamental and practical aspects of crack growth under corrosion fatigue conditions Quantitative understanding of the effects of mechanical and environmental variables on corrosion fatigue crack behaviour Preliminary results of effect of environment on the low cycle fatigue behaviour of Type 316 stainless steel and 9% Cr ferritic steel The effect of environment and frequency on crack nucleation Stage 1 and II crack growth in two aluminium zinc magnesium alloys The influence of low oxygen and contaminated sodium environments on the fatigue behaviour of solution treated AISI 316 stainless steel Environmental effects on fatigue crack initiation and propagation in a cast steel Mechanisms affecting chemistry and material properties at crack tips in metals The effect of pressurized water reactor environment on fatigue crack propagation of pressure vessel steels A quantitative assessment of the superposition model of corrosion fatigue The effect of frequency and temperature on environmentally assisted fatigue crack growth below K1SCC in steels Cracking in 500 MW L P rotor shafts

'The study on cargo oil tank (COT) corrosion of oil tanker' has been carried out by 'The Shipbuilding Research Association of Japan Panel #242 (SR242) committee' for 3 years supported by the Nippon Foundation. The main objectives of this study were - (1) Making facts clear on VLCC localized corrosion on bottom plate scientifically (2) clarifying differences in localized corrosion behaviour between double hull (D/H) and single hull (S/H) and (3) reconfirmation that localized corrosion behaviour of mild steel (MS) and TMCP steel is the same. The wide range of studies by onboard inspections and laboratory tests on localized corrosion on bottom plate was carried out. In this study intensive field examinations are conducted for technical understanding of fact. 7 VLCCs including single hull and double hull have been examined. Key findings are looked at.

This publication reviews the current rescue procedures by helicopters at sea, and looks at the availability of search and rescue helicopters, rescue of a person on a vessel, estimation of the expected number of persons rescued by helicopters following a casualty, risk considerations, and considerations on the impact on the design.

Severe damage was caused to a Japanese nuclear power plant in August 2004. This was caused by failure on a condensation water pipe in a secondary line. A similar type of failure could occur on a steam-feed water-condensation water pipe for a main or auxiliary boiler plant in ships. Subsequently the occurrence mechanism and circumstances of such a failure on the piping system of ships was investigated. The results confirmed that the same fault could occur in such ships. This failure called FAC (flow accelerated corrosion) is caused by erosion-corrosion at a place where the flow is turbulent such as a behind an orifice or control valve or at a bending such as an elbow which is strongly influenced by temperature flow velocity and the pH of the fluid. Wall pipe thickness is measured in such locations and under such conditions using an ultra-sonic testing machine.

Ship-integrated design which includes the selection of a ship's particular dimensions design of ship form general arrangement and structure optimisation and so on is the pre-requisite (and a most important process) to the design. It affects the ship's ultimate technical and economic performance. The optimal selection of ship types is a complicated multi-variable and multi-objective issue and its solution relies mainly on designers' experience in the past. In recent years progress has been made in the research of ship particular dimensions and demonstration optimisation and ship type by setting up the math model adopting optimisation methods in mathematics system science and MCDM with the development of science and computer technique. A new method of interactive MCDM (multiple criteria decision making) is presented. In cases where ship designers sometimes find it difficult to make a decision when facing such complex ship form schemes. To address this the conventional AHP (analytical hierarchy process) is adopted but this mostly depends on the designer's subjective and leads to the systematic error. A new method can obtain accurate results with the rigid least square method as a tool making full use of the AHP and the objective information entropy which reflects the inherent attribute. When applied in practice it is proved to be effective

CIMAC Congress 2007 - Vienna Ever increasing demands to cut costs and manpower means an inevitable reduction in time-consuming laboratory based oil analysis. An alternative is therefore required. A range of on-line CMS (condition monitoring sensors) have been designed tested and placed in real world situations. These sensors detect parameters such as metallic wear debris emulsified and dissolved water viscosity and oil condition. These sensors provide the possibility of real time measurement of wear metals and oil condition at an economical cost. It is shown how this can be achieved in a number of cases including real and simulated failures. On-line sensor technology is presented for use in monitoring oil and machinery condition. Oil and machinery condition data has been collected from slow- and medium- speed diesel engines industrial and wind turbine gearboxes. This shows how oil change intervals can be extended and maintenance can be scheduled in advance. It is shown how well the sensors have performed and that real time assessments of machinery condition can be made from the data. The sensor development project described has now been completed and has resulted in full commercialisation of a suite of on-line oil conditions sensors.

This interim report outlines the current movement of the ballast water control in IMO and regional areas in Part 1 and introduces the essential part from the latest study in Japan on ballast water exchange methods in Part 2.

Int Symp held in Piraeus Greece on 9-11 May 1990 Papers are On fire! The need for new thinking Fire protection on large cruiser ships Fire safety on passenger vessels operating in the United States of America

Over time remnants of fixed offshore structures may corrode and split into smaller pieces from the repeated action of waves and currents. Efforts to predict what might happen to the remains of steel structures which may be left on the seabed following decommissioning are described. Of particular concern are remains left in waters deeper than 100 m of the northern North Sea from where complete fixed platforms have yet to be removed. If platform remains are to be left on the seabed the Regulatory Authorities will require evidence that they will remain substantially intact stable and not move across the seabed to become a hazard to fishermen and other sea users. All the factors are presented and considered. It is shown that hydrodynamic loads on debris may be assessed from the effect of waves and currents on the boundary layer close to the seabed. Expressions from lift drag and inertia forces are available from pipeline stability studies. New expressions are derived for stability and resistance of isolated tubulars and prisms on the seabed and compared with the results of model tests on sand and clay. The effect on stability of effective density size shape soil conditions environmental forces and height of fall to the seabed are discussed. It is found that tubulars tend to sink into soft clay but may roll on hard clay. Finally it is pointed out that data from wrecks shows the potential for self-burial due to sediment transport.

The performance of two vertical wave screens formed by pipes on reducing the pressures due to waves on a vertical wall placed on its leeward side has been investigated through an experimental program. The variations in the reflection characteristics of the wall are also studied. Of the two screens the porosity of the seaward side screen was maintained constant while the porosity of the one in between this screen and the wall was varied. Thus four different screen porosity combinations in a random wave field were studied. The effects of the screen porosity on the reflection from the wall and the dynamic pressures on the vertical wall have been reported as a function of relative dissipating chamber width. The details of models instrumentation analysis of the data and the results are presented and discussed in this paper.

A large number of design parameters are known to affect damage stability of ro-ro passenger ships. Amongst these and of great importance are the number and location of transverse bulkheads the location of longitudinal bulkheads below the main deck the length of lower hold the location of main deck and double bottom the existence of central or side casings above main deck etc. The aim here is to estimate the influence of these parameters on the attained subdivision index A of the vessel. To accomplish this a representative group of ro-ro and ro-pax vessels is selected and starting from the original designs the parameters mentioned above are systematically varied and damage stability calculations are carried out for the new models. The results obtained on the attained subdivision index A are presented and critically reviewed and suggestions for improved design are derived.