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The sloshing in LNG tanks has attracted attention over recent years mainly due to the market developments and changes in the design and operation of LNG ships. In designing LNG insulation Mark 3 systems it is essential to estimate the stress level that can occur in the structures due to the extreme loading such as sloshing loading which can be local high and transient. The effect of the flexibility of the stiffened panel and impact-loading patch on the stresses level of insulation system is investigated. The results are presented in the form of the dynamic amplification factor. For impulse type sloshing pressures relative to the steel plate the steel plate behaves as a rigid support resulting in vertical responses that exhibit a limited variation over the area.

Symp held in London 7 - 9 March 1978 Papers are Operational requirements and choice of craft The offshore tapestry and the 200 mile exclusive economic zone Offshore capabilities required to meet governments increased responsibilities and tasks Seakeeping and the small warship Small warships in the Royal Navy and the Fishery Protection Task A hydrofoil fisheries patrol vessel for the United Kingdom The amphibious hovercraft as a warship General design aspects of small fast warships Planing hull feasibility model Its role in improving patrol craft design An experimental investigation on the roll stability of a semi displacement craft at forward speed Structural design and materials for small warships A navigation and action information system for offshore task forces Weapon electronics in small fast warships and security vessels Arming the light naval craft Air defence of small fast warships The compact gas turbine for powering small fast ships The diesel engine for powering high speed craft Controllable pitch propellers for small fast warships and patrol craft

Varied observations over Oregon's continental shelf illustrate the beauty and complexity of geophysical flows in coastal waters. Rapid creative and sometimes fortuitous sampling from ships and moorings has allowed detailed looks at boundary layer processes internal waves and coastal currents including how they interact. These processes drive turbulence and mixing in shallow coastal waters and encourage rapid biological responses yet are poorly understood and parameterized. The work presented in this article represents examples of efforts by many physical oceanographers to quantify small-scale coastal-mixing processes so that their effects might be included in regional circulation models. After some introductory information new perspectives on cross-shelf structure are outlined. Next a look is taken at the bottom Eckman layer followed by nonlinear internal waves form drag the role of internal waves in shear-enhancement of the coastal jet and consequences.

Papers are: 10th Chua Chor Teck annual memorial lecture: 'The human element in maritime safety and marine pollution prevention' by J C Card Taking advantage from ISM Code certification Major advancements for the safety of bulk carriers ABS IMO and IACS initiatives Anris 2000: safe navigation and calculable risk by an intelligent alarm and monitoring system for large and fast ships FPSO power generation by using gas diesel engines Virtual laboratory in engineering education and training Port of Singapore authority's standard for port limit's Bunker tanker Brain business for the business brain

Applications of marine electric propulsion are first outlined ice breakers dredgers and cargo ships being mentioned. Thyristor converters find application in static logic schemes which are briefly discussed. Main types of excitation control are discussed in detail. These include A.C. variable frequency control W.L. control and the constant current system. The operation of a non-reversing thyristor converter is discussed and d.c. thyristor converters and control systems are considered. Thyristor drives for the main power supply are next dealth with. Marine a.c. power systems are decribed including converter circuits reversing drive connexions and motor design. Thyristor converter protection and cooling are described. Control of a.c. cage motors thyristor control for gas turbine electric propulsion is discussed including control circuits propulsion motor control systems spare equipment thyristor transformer input and emergency mode operation. Mechanical features of the equipment are mentioned. Finally application to self-propelling oil drilling rigs and submarines is shown.

Intl Conf held at the University of Strathclyde on 16-18 June 1986 Papers are Stability requirements for semi-submersibles; a designer's veiwpoint A new theory and its application for stability criteria covering wave-induced tilt pheonomena in semi-submersibles Wind loads in floating offshore structures Inclining tests in service Mobile platform stability; the MOPS projects Semi-submersible research and its applications The study of a new procedure for assessing stability of ships and offshore structures Hydrodynamic model studies of the Ocean Ranger Marine Disaster A method of simultaneous measurement of directional wave spectra surface current and rig motion A data system for improving safety and availabilty of moored floating structures Transient motions of a semi-submersible after damage Dynamic positioning of a semi-submersible - resulting of scale model tests and computer simulations Propulsive aspects of dynamically positioned semi-submersibles

The demand for high-speed military transport is enormous particularly during a national crisis such as the Persian Gulf conflict. Despite the development of several powering prediction tools for semi-planing hulls during the past 30 years limitations inherent in these tools have restricted their applicability to ships similar in size to patrol boats. A study is presented which uses a speed-dependent regression model for which in-depth analyses were carried out. The findings are promising and should provide naval architects with a useful powering prediction tools for ship types ranging from high-speed round bilge patrol boats to large transom tern displacement hull forms.

One of the important areas in ship development for the next generation of ships is thermal management. Good thermal management from large heat sources together with reliable cooling technology is the key to energy savings cost efficiency and upgrading a vessel's performance. In this study a conceptual design for thermal management configuration is introduced which will fulfil thermal handling requirements from various heat loads on board ship. The configuration adapts environments for the next generation shipboard cooling application on naval and marine vessels and proposes a model for the direct ship's hull cooling method using flat plate heat sink and water cooling as part of an integrated thermal loop system called TPCLT (two-phase closed-loop thermosyphon). The configuration trade-offs the applicable thermal handling methods for each kind specific purpose of equipments or devices and heat load network to gain the appropriate one. On this basis preliminary design study on the required configuration of the TPCLT with direct hull cooling method is described.

This paper describes the application of the techniques of Data Warehouse (DW) and Data Mining (DM) to develop a framework for studying the marine safety. It helps to enhance the understanding and insights into the inbeing of marine tradegies and discover their patterns. in the paper a new dimensional modeled schema Star Schema is proposed to build the data warehouse of marine accidents/incidents. For case study a data warehouse is designed for the vessel casualties/incidents ocurred in the Tangtze River from 1995 to 2000. in the data warehouse the quantitive characteristics of the badly severe coliision accidents are extracted by data mining and the predictor formula based on Generalized Linear Model (GLM) is derived for the probability of ships colliding with bridges.

The Mobile Offshore Base (MOB) is designed to transit to anywhere in the world in the required time frame. During the research of MOB dynamical properties a non-linear system modeling and optimization tool using Reverse MI/SO (Multiple-Input / Single Output) techniques was developed and applied to different aspects of MOB dynamics analysis. MISO is based on statistical signal processing of the recorded time histories of the excitation and response of the non-linear multi-degree-of-freedom system. In this paper the model testing data in beam seas is analyzed using the Reverse MISO technique. The authors expected to identify significant nonlinear roll damping for the nonlinear integro-differential equation as is the case with ships. Instead a significant nonlinear heave damping related with the nonlinear relative heave velocity has been found during the analysis. This once again acts as a reminder that due to the strong nonlinearity of MOB motions in the severe sea ways nonlinear analysis methods such as Reverse MISO are important and need to be applied in order to fully identify the dynamics of the MOB motion.

EP (environmental protection) requirements must be integrated at program conception. The ESH integration model is presented. Institutionalisation of this model has enabled the T-AKE Program to establish EP performance requirements for the 12-ship class that substantially reduce the environmental footprint of the Navy. Compared to the 15 ships that it will be replacing T-AKE will require 50% less manning and will reduce waste streams by 70% enabling an annual life cycle cost savings of $5M in ashore waste disposal costs. The T-AKE Program has been the first to achieve the Chief of Naval Operations vision for the 'Environmentally Sound Warship of the 21st Century' through design integration of EP requirements.

This book is directed primarily toward the newcomer to tankers. It is intended as an introductory guide designed to maker the new officer's adjustment to tanker life smoother, less perilous; a source of useful information for the more experienced officer; and a reference book for other individuals interested in the operation of oil tankers, particularly those aspiring to the rating of tankerman. Contents include what an oil tanker is, how oil is measured and classified, cargo piping systems, loading, discharging, planning the load, ballasting, tank cleaning, fire fighting and fire prevention and preventing pollution.

The awareness and use of composite materials in structural fire protection has increased in the offshore oil industry in recent years. New products have made their way into the market offering ease of installation and varying degrees of fire protection. This paper will discuss the fire integrity differences of these composites versus conventional structural fire protection materials and offer suggested methods of criteria to be applied to ensure the safety of personnel and property. This paper describes the current regulations in force for ships and mobile offshore drilling units (MODUs) the current testing procedures and the conventional types of structural fire protection offered. These will be compared with the newest composite type products being used in the offshore industry and the ways of evaluation and future testing procedures that should be proposed.

Panama currently has 13000 registered merchant ships but very few of its people are seafarers. The current examination and certification schemes are reviewed and modification to help these schemes meet the requirements of the revised Standards of Training Certification and Watchkeeping for Seafarers (STCW 95) are considered. A plan to co-ordinate and develop maritime education and training (MET) is put forward that includes updating maritime legislation the location of facilities staff development and attracting seafarers from neighbouring countries to facilities. If implemented the plan would allow Panama to improve its maritime status while benefiting economically.

The detrimental impact of the operating differential subsidy (ODS) and construction differential subsidy (CDS) programmes on the American Flag fleet since 1936 is reviewed. The CDS for example subsidised the construction of foreign ships in America's shipyards until 1982. The statistical tests that were undertaken to demonstrate that subsidies actually increase operational costs are described and various results are presented and discussed. The last ODS contracts ended in 1997 and a new act The Maritime Security Act of 1996 is about to come into force. The new regime presents clear benefits to the US government but it is concluded that any benefits for the maritime industry will not be apparent for some time.

The purpose of the article is to raise awareness for banning gross tonnage (GT) as a base for tariffs and legislation; to increase the understanding that GT has no scientific value; and to present the case that port dues should be based on the facilities which the port is serving and not related to assumed ship operators' earning. Arguments for a different approach to tonnage measurement and safety and the history of tonnage measurement are presented. Recommendations for design of container feeders large open container ships roro passenger ferries chemical tankers and bulk carriers are given.

Since 1995 there has been a dramatic increase in oil and gas exploration and production using floating platforms in deeper waters located farther offshore. The new type of oil and gas production vessel, a Floating Production, Storage and Off-loading facility (FPSO) is designed using the same principles as ships and incorporates land-based oil and gas equipment redesigned to meet environmental conditions encountered on an oil and gas process deck. There has been a need for written guidelines in applying oil and gas turbomachinery to FSPOs, which is what this book aims to deliver. Chapters focus on the environmental conditions faced; types of vessel; compliance, classification and certification; machinery design solutions; and damage to machinery.

The 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.

This book comprises a series of essays on seamanship topics which should be of interest to mariners in general and master mariners in particular. The book opens, following some introductory remarks, with a discussion of the application of mechanics to seamanship, particularly that part of seamanship concerned with the stability of the ship. So important is this in the operation of a ship that no effort should be spared in mastering its principles. The other chapters that follow comprise of the following subjects: The ship’s equipment; The principles of ship handling; Anchor work; Handling a ship in harbour or port; The ship at sea; Assisting another vessel in need of aid; The ship in rough seas; Fires on ships; Collisions; Dry-docking and grounding; Abandoning ship and survival in boats.

The New Jersey Shelf Observing System is described. It is a coastal ocean observatory whose primary goal is supporting collaborative inter-disciplinary oceanographic research. The observatory has both a sustained component designed to provide spatial datasets all year round and a process study component for more intensive measurements during short-term scientific experiments. The sustained component consists of tracking stations for the international constellation of ocean colour and IR satellites multi-frequency multi-static CODAR HF Radars and long-duration subsurface Glider AUVs. The processes study component uses numerous platforms that include aircraft ships propeller-driven AUVs and relocatable mooring arrays. Process studies focused on recurrent coastal upwelling centers and their biological impacts from 1998-2001 and are planned to focus on the Hudson River plume chemical contaminants and their biological impacts from 2003-2007. Despite being a research-oriented observatory run by the scientists for the scientists it maintains a significant societal impact through its website receiving an average of over 60000 hits a day during the busy summer months.