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Acoustic invisibility for elliptic objectstheory and experiments for underwater sound /

Record Type:	Electronic resources : Monograph/item
Title/Author:	Acoustic invisibility for elliptic objectsby Davide Enrico Quadrelli, Francesco Braghin.
Reminder of title:	theory and experiments for underwater sound /
Author:	Quadrelli, Davide Enrico.
other author:	Braghin, Francesco.
Published:	Cham :Springer Nature Switzerland :2023.
Description:	ix, 87 p. :ill., digital ;24 cm.
Contained By:	Springer Nature eBook
Subject:	Underwater acoustics.
Online resource:	https://doi.org/10.1007/978-3-031-22603-8
ISBN:	9783031226038$q(electronic bk.)

Acoustic invisibility for elliptic objectstheory and experiments for underwater sound /
Quadrelli, Davide Enrico.

Acoustic invisibility for elliptic objectstheory and experiments for underwater sound /[electronic resource] :by Davide Enrico Quadrelli, Francesco Braghin. - Cham :Springer Nature Switzerland :2023. - ix, 87 p. :ill., digital ;24 cm. - SpringerBriefs in applied sciences and technology. PoliMi SpringerBriefs,2282-2585. - SpringerBriefs in applied sciences and technology.PoliMi SpringerBriefs..

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 an elliptical 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.

ISBN: 9783031226038$q(electronic bk.)

Standard No.: 10.1007/978-3-031-22603-8doiSubjects--Topical Terms:

229073
Underwater acoustics.

LC Class. No.: QC242.2

Dewey Class. No.: 620.25

Acoustic invisibility for elliptic objectstheory and experiments for underwater sound /
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520 $a 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 an elliptical 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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