This book was written by A. Hermans with the intention to provide readers with a general technical introduction to the various aspects of the water waves playing the important roles in hydrodynamics of ships as well as offshore engineering. Firstly, it derives the equations and linearized boundary conditions that describe the non-viscous free waves with the particular attention being paid to the combination of non-steady and steady flow fields. After that, the author derives some of the simple types of free wave solutions, for example cylindrical and plane waves. The source singularity function has also been derived for several steady and unsteady situations; subject functions are playing a role in the numerical codes that are used for the description of the ship's motion. The content of the publication is divided into eight major chapters addressing the water waves theory, second-order theory, non-linear and irregular waves, linear wave phenomena and asymptotic formulation, and other important technical aspects of the ship hydrodynamics. The appendices at the last part of the book are providing such important additional information as the methods of characteristics and of stationary phase, two-dimensional Green's function, singular integral equations and simplification of the relevant algebraic equations. A very useful and practical volume for ship designers.
A very useful and informative self-contained reference publication containing the data on the added mass not only of the ships but also of the various other marine engineering structures. The author has provided a good description of both theoretical and experimental methods of determination of the added masses. The volume will impress readers with the completeness and width of the content together with the consistency of presentation of the material. It will definitely be found extremely practical in the everyday work. Note that this book may be used in ship engineering as well as in various other fields of engineering such as machine engineering and hydrotechnique. The author has made a good attempt to summarize all important material published earlier in English and Russian-language literature sources. Proper knowledge and understanding of the added masses interacting with the fluid is considered necessary in the research and applied tasks. The publication will definitely be called for by the ship designers as well as designers of all other engineering structures that commonly interact with the fluids. It will become a truly indispensable source of technical information. The author of the book has managed to combine numerous diverse issues relating to the determination of the added masses...
The global warming and exploration of the hydrocarbons that is carried out in the Arctic region results in the constantly increasing maritime activity in iced waters. Nowadays, it is possible to predict if a ship will be capable of surviving an encounter with the ice of a particular given thickness; however such knowledge will not be enough to accurately predict the associated increase of the fuel costs. In the present thesis the investigation of the validity of the analytical formulations for the ice resistance in the above mentioned geographical region has been performed. Subject formulations have been based on the trials in the Swedish-Finnish waters having lower salinity and relatively warm climate in comparison to the ones of the Arctic waters. This has been conducted by comparing the ship resistance that is estimated on the basis of the information obtained from the onboard measurements of the ship's speed and thickness of the ice as well as the engine power with the estimates received from the analytical formulations. The topic addressed in this book is very challenging and rewarding. The thesis starts with the introduction followed by the description of the characteristics of the sea ice, models used for the calculation of the ice induced hull resistance, open-water resistance, analysis of the relevant statistical data, and many other important aspects.
The publication is primarily dealing with the flows over the ship propellers that operate behind vessels, together with the forces and movements generated by the propellers on the ship's hull and shafting. An excellent presentation of all complex technical concepts related to the subject. This book is a remarkably useful encyclopedic resource. It is reflecting the results of the work conducted by many researchers in the field and their professional experience collected during last sixty years. For easier understanding, all mathematical derivations and concepts have all been explained in detail. The main content of the book has been divided in two parts. The first part the subject of the book has been outlines with the comprehensive practical applications to the representation of the performance of the hydrofoils, both with and without cavitation as well as propellers and wings. The second part of the volume is addressing the unsteady forces acting on ship propellers in wakes using the lifting-surface theory together with the vibratory forces included by the ship propellers on the boundaries and hulls. The last chapter of the book describes the rational procedure to optimize of the compound propulsors with the intention to increase the efficiency. This is one of the best deck references available for the research engineers as well as all other specialists and even students.
Here is the second edition of this book which continues to serve as one of the most complete and comprehensive guides to proper understanding of the ship hydrostatics together with the associated design and performance matters, taking readers from the basic principles to the serious and detailed analysis. The practical application of the hydrostatics has been illustrated using the real-life examples and calculations conducted in Excel and MATLAB programs. Apart from the traditional content, this release of the book includes the definitions and also indexes presented in four languages in order to make the material accessible to the international readers. As always, the book is equipping the naval architects with the required theoretical knowledge and context to get the understanding oh the stability through all stages from design to the construction and use, it is covering the pre-requisite basic theory including the dimensions and geometry of the ship's hull, calculation of moments and numerical integration, and it is outlining a clear approach to the modeling of stability and its analysis my means of the contemporary methods of computation, covering the international recognized standards and applicable regulations governing the stability. An excellent publication which have deservedly gained the world popularity and recognition among both students and specialists.
The present guide has been specifically designed and released to assist marine surveyors and ship masters tin ensuring that they perform the draught surveys in the maximum correct and accurate manner. We know that the accurate measurement of the dry bulk cargo can considerably minimize the risk of potential shortage claims and associated disputes. The authors of this publication have outlined the established and proven methods and corrections for the draught surveys to be conducted to the required level of accuracy. The content of the guide provides them with the formulas and recommended procedures for nearly every situation that can be encountered in the course of the draught survey. The authors have also included the UN ECE forms for the draught surveys for reference. The guide starts with short introduction and description of the practical procedure of the draught survey. Apart from that, the main content of the guide has three parts covering the information required for the surveys, assessment of the underwater volume of the ship, and deductibles. A glossary is there at the end of the guide containing and explaining all terminology. Five appendices provide some valuable additional information, such as the equipment, information and corrections check lists, metric/imperial conversions and check list of reservations.
The present title is intended to provide the required introductory technical background to the naval architecture statistics. Each of the subjects discussed within this volume has been treated in detail, and this approach has been applied starting from the very first principle. The main objective of J. Jensen, the author of this volume, was to derive and present readers all required theoretical information for the prediction of the extreme loads and evaluation of the corresponding stresses in the hull girder of the ship. Though some part of the book is dedicated to the reliability analysis, this treatment shall be supplemented with the methods for the detailed evaluation of stress and also for the assessment of the structural strength of the ship's hull prior to the commencement of the reliability analysis. The class societies have issued their regulations covering the structural analysis of a vessel and proper selection of its scantlings. In the past, subject regulations gave formulas for the calculation of the hull thickness and size of the stiffening members. Such empirical regulations must be conservative so that they can be applied to the majority of the vessels. However the regulation have been changed with the advent of the powerful computers. Nowadays, naval architects can perform the structural analysis of the hull using the rational methods that are based on the first principles...
The ship disasters that occurred in the past all serve as reminders to the professionals of the maritime industry of the serious need for the cost effective enhancement of the safety and also as strong indicators of the gaps existing there in the stability safety of the vessels. The latter problem is actually very complex, and practically meaningful solutions to it can be feasible only in case of close international co-operation and combining the efforts made by all members of the maritime community. A CRP, standing for the Collaborative Research Project, was launched some thirty years ago as a response to the above mentioned problem. The authors of the present publication have included selected and most valuable technical materials obtained from the first four CRP workshops. The book contains nearly fifty documents representing all currently available professional expertise related to the stability of the vessels, spanning seventeen different countries of the world. All of the papers included in this volume have been arranged in four groups, dealing with the stability of the intact ship, stability of a damaged ship, covering the special problems of ship stability, and addressing the impact that stability has on design and operation of the vessels. Definitely must-have book for all those people who wish to be kept updated with all recent happenings in the field of contemporary naval architecture, and ship stability in particular.