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Design of a programmable active acou...

Smoker, Jason J.

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Design of a programmable active acoustics metamaterial.

Record Type:	Language materials, printed : Monograph/item
Title/Author:	Design of a programmable active acoustics metamaterial./
Author:	Smoker, Jason J.
Description:	187 p.
Notes:	Source: Dissertation Abstracts International, Volume: 74-08(E), Section: B.
Contained By:	Dissertation Abstracts International74-08B(E).
Subject:	Engineering, Mechanical. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3557691
ISBN:	9781303011290

Design of a programmable active acoustics metamaterial.
Smoker, Jason J.

Design of a programmable active acoustics metamaterial. - 187 p.

Source: Dissertation Abstracts International, Volume: 74-08(E), Section: B.

Thesis (Ph.D.)--University of Maryland, College Park, 2012.

Metamaterials are artificial materials engineered to provide properties which may not be readily available in nature. The development of such class of materials constitutes a new area of research that has grown significantly over the past decade. Acoustic metamaterials, specifically, are even more novel than their electromagnetic counterparts arising only in the latter half of the decade. Acoustic metamaterials provide a new tool in controlling the propagation of pressure waves. However, physical design and frequency tuning, is still a large obstacle when creating a new acoustic metamaterial. This dissertation describes active and programmable design for acoustic metamaterials which allows the same basic physical design principles to be used for a variety of application.

ISBN: 9781303011290Subjects--Topical Terms:

783786
Engineering, Mechanical.

Design of a programmable active acoustics metamaterial.
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020 $a 9781303011290
035 $a (MiAaPQ)AAI3557691
035 $a AAI3557691
040 $a MiAaPQ $c MiAaPQ
100 1 $a Smoker, Jason J. $3 2097751
245 1 0 $a Design of a programmable active acoustics metamaterial.
300 $a 187 p.
500 $a Source: Dissertation Abstracts International, Volume: 74-08(E), Section: B.
500 $a Adviser: Amr Baz.
502 $a Thesis (Ph.D.)--University of Maryland, College Park, 2012.
520 $a Metamaterials are artificial materials engineered to provide properties which may not be readily available in nature. The development of such class of materials constitutes a new area of research that has grown significantly over the past decade. Acoustic metamaterials, specifically, are even more novel than their electromagnetic counterparts arising only in the latter half of the decade. Acoustic metamaterials provide a new tool in controlling the propagation of pressure waves. However, physical design and frequency tuning, is still a large obstacle when creating a new acoustic metamaterial. This dissertation describes active and programmable design for acoustic metamaterials which allows the same basic physical design principles to be used for a variety of application.
520 $a With cloaking technology being of a great interest to the US Navy, the proposed design approach would enable the development of a metamaterial with spatially changing effective parameters while retaining a uniform physical design features. The effective parameters would be controlled by tuning smart actuators embedded inside the metamaterial structure. Since this design is based on dynamic effective parameters that can be electrically controlled, material property ranges of several orders of magnitude could potentially be achieved without changing any physical parameters. With such unique capabilities, physically realizable acoustic cloaks can be achieved and objects treated with these active metamaterials can become acoustically invisible.
590 $a School code: 0117.
650 4 $a Engineering, Mechanical. $3 783786
650 4 $a Physics, Acoustics. $3 1019086
650 4 $a Engineering, Materials Science. $3 1017759
690 $a 0548
690 $a 0986
690 $a 0794
710 2 $a University of Maryland, College Park. $b Mechanical Engineering. $3 1018396
773 0 $t Dissertation Abstracts International $g 74-08B(E).
790 $a 0117
791 $a Ph.D.
792 $a 2012
793 $a English
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3557691