Rezensionen
Rezensionen
Alexander A. Dorfmann
Mathematische Modellierung in der Schiffstheorie
Geometrie, Mechanik, Hydrodynamik
Rezension
The book deals with mathematical and mechanical aspects of ship theory. It contains an introduction, seven chapters dealing with geometry, mechanics, hydrostatics, hydrodynamics, motion of a ship, one-dimensional motion of a ship, water waves as well as an appendix providing mathematical items and formulas. Here, a ship is defined as a rigid body exhibiting at least one plane of symmetry and generally a non-homogeneous mass distribution. In all chapters, the author provides the necessary formulas to take this specification into account, for instance, formulas for description of surfaces and for the moment of inertia. Examples for special geometries are c0nsidered. In doing so, the author follows a strong classification, at some places with little explanation. Therefore, the book has also the character of a formulary. The author has written his book for a broad audience: for engineers, lecturers, Ph.D. and other students. From the reviewer´s point of view, the book can be a useful supplement for people interested in ship theory. Unfortunately, the book does not contain a subject index. There is only a list of abbreviations. It would be desirable, if – at least at two or three places – the author had dealt more extensively with mathematical modeling, as is promised in the book´s title. This remark is meant in the sense that it would be useful just for (undergraduate) students to see in detail how the modeling starts from some assumptions (first principles like balance of impulse) and ends with a complete mathematical problem for determining the unknown quantities. In addition, at some places basic items are difficult to understand without further references, for instance hydro masses (Hydromassen). FinaIly, at some places, unfortunately, there are linguistic errors. (Michael Wolff)
