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Modeling a ship's ferromagnetic signatures [electronic resource] / John J. Holmes

Author
Holmes, John J., 1951-
Published
San Rafael, Calif. (1537 Fourth Street, San Rafael, CA 94901 USA) : Morgan & Claypool Publishers, [2007]
Copyright Date
©2007
Edition
1st ed.
Physical Description
1 electronic text (vii, 75 pages : illustrations (some color)) : digital file
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Restrictions on Access
Abstract freely available; full-text restricted to subscribers or individual document purchasers.
Contents
1. Introduction -- Reference -- 2. Basic equations -- 2.1 Basic equations of electromagnetics -- 2.2 Coordinate systems -- 2.3 Prolate spheroidal coordinate system -- 2.4 Solution to Laplace's and Poisson's equation in prolate spheroidal coordinates -- References -- 3. First-principal models -- 3.1 Spherical model of a vessel's hull -- 3.2 Prolate spheroidal model of a vessel's hull -- 3.3 Dipole moments and their units -- 3.4 Mathematical models of a degaussing coil -- 3.5 Numerical models -- 3.6 Ferromagnetic physical scale models -- References -- 4. Semiempirical models -- 4.1 Forward models -- 4.2 Inverse models -- References -- 5. Summary -- References -- Appendix I. References -- Appendix II. Author biography.
Summary
Ferromagnetic models of ships and submarines that predict or reproduce their magnetic signatures have found applications in the development of both offensive and defensive military systems from World War II to the present. The mathematical basis of generalized coordinate systems will be presented and demonstrated with example applications to analytic spherical and prolate spheroidal magnetic ship models. In addition, the advantages and pitfalls of using complex finite-element- and boundary-element numerical techniques to predict high-order near-field ship signatures will be discussed, followed by a short description of the design and testing of complementary physical scale models. Extrapolation of measured magnetic signatures from testing environments to threat areas using semi-empirical math models will be presented, along with an explanation of their inherent instabilities and methods for regularizing them. These magnetic ship signature modeling techniques are used today in designing optimized signature reduction systems that have a minimum impact on ships and their systems. The discussion will be closed with an important discussion of the verification and validation of magnetic models of surface ships and submarines.
Subject(s)
ISBN
159829251X (electronic bk.)
9781598292510 (electronic bk.)
1598292501 (pbk.)
9781598292503 (pbk.)
Related Titles
Synthesis digital library of engineering and computer science
Note
Part of: Synthesis digital library of engineering and computer science.
Title from PDF t.p. (viewed Oct. 19, 2008).
Series from website.
Bibliography Note
Includes bibliographical references.
Other Forms
Also available in print.
Technical Details
Mode of access: World Wide Web.
System requirements: Adobe Acrobat Reader.
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View MARC record | catkey: 7058229