Acoustic Invisibility for Elliptic Objects Theory and Experiments for Underwater Sound
Aus der Reihe
PoliMI SpringerBriefs
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Sprache:Englisch
Fr. 72.90
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Beschreibung
Produktdetails
Einband
Taschenbuch
Erscheinungsdatum
31.01.2023
Abbildungen
IX, 87 p. 38 illus., 34 illus. in color.
Verlag
SpringerSeitenzahl
87
Maße (L/B/H)
23.5/15.5/0.6 cm
Gewicht
184 g
Auflage
1st ed. 2023
Sprache
Englisch
ISBN
978-3-031-22602-1
The book investigates acoustic cloaking for elliptical targets, starting from the development of a systematic approach to deal with such non-axisymmetrical shapes by adopting transformation acoustics in elliptic coordinates, and concluding with numerical and experimental validation of a microstructured cloak in the underwater environment. The book thus comprises all the steps from theory to practice that led to the first experimental validation of acoustic invisibility for non-cylindrical objects, whose results are presented in the last chapter. Indeed, despite Transformation Theory is now an established tool to design material distributions capable to unlock the design of invisibility devices, it is not trivial to apply it for shapes different than the sphere and the cylinder, which are thus the ones mainly addressed in the literature. This book paves the way for exploration of other shapes, demonstrating the effectiveness of a pentamode cloak in reducing the acoustic visibility of anelliptical target, and discussing design choices that can make the implementation of the required microstructure less cumbersome despite the lack of axial symmetry of the problem, from both the numerical and manufacturing point of views.
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