New Acoustics Based on Metamaterials

Woon Siong Gan (Autor)

Buch | Softcover

313 Seiten

2019 | Softcover reprint of the original 1st ed. 2018
Springer Verlag, Singapore
978-981-13-4866-2 (ISBN)

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This book highlights the acoustical metamaterials’ capability to manipulate the direction of sound propagation in solids which in turn control the scattering, diffraction and refraction, the three basic mechanisms of sound propagation in solids. This gives rise to several novel theories and applications and hence the name new acoustics. As an introduction, the book mentions that symmetry of acoustic fields is the theoretical framework of acoustical metamaterials. This is then followed by describing that acoustical metamaterials began with locally resonant sonic materials which ushered in the concept of negative acoustic parameters such as mass density and bulk modulus. This complies with form invariance of the acoustic equation of motion which again exemplifies the symmetry property of acoustic fields.

Dr. Woon Siong Gan obtained his BSc in physics in 1965, DIC in acoustics & vibration science in May 1967 and PhD in acoustics in Feb 1969, all from the Physics department of the Imperial College London. He was associate professor in the physics department of the Nanyang University, Singapore from 1970 to 1979. From 1979 to 1989, he was a practicing acoustical consultant. In 1989, he founded Acoustical Technologies Singapore Pte Ltd, a research & technologies company engaging in ultrasound technologies especially acoustical imaging. The company has developed and patented the scanning acoustic microscope (SAM) and the surface acoustic wave (SAW) devices. He is also the author of the book: Acoustical Imaging: Techniques and Applications for Engineers published by John Wiley & Sons in June 2012. He is the first to introduce symmetry properties to acoustic fields in 2007. In 1996 he coined the term transport theory. Transport theory is today the key foundation of theoretical designof materials.

Introduction.- Gauge Invariance Properties of Acoustic Fields.- Negative Refraction is a Special Case of Coordinates.- Transformation-Unified Theory of Negative Refraction and Acoustical Cloaking.- Three Basic Mechanisms of Sound Propagation in Solids and Fluids.- Revolution in Acoustic Devices by Metamaterial.- Scattering at different Layers of different Parities.-Diffraction Tomography by Negative Inclusions.- Vibration Propagation in Metamaterial Structures.- Seismic Metamaterials.- Phononic Crystals based Crystal Acoustics.- Metamaterials based Acoustic Waveguides .- Metamaterials Acoustic Filters -Application to Communication.- Acoustical Cloaking of Underwater Objects-Submarines.- Acoustic Diodes.- Nonlinear Acoustics based on Metamaterials.- Phononics.- Nonlinear Phononic Crystals-Energy Harvesting.- Fabrication of Nanometamaterials.- Artificial Piezoelectricity.- Conclusions.

Erscheinungsdatum	04.01.2019
Reihe/Serie	Engineering Materials
Zusatzinfo	25 Illustrations, color; 44 Illustrations, black and white; XVI, 313 p. 69 illus., 25 illus. in color.
Verlagsort	Singapore
Sprache	englisch
Maße	155 x 235 mm
Themenwelt	Technik ► Maschinenbau
Schlagworte	Acoustical Cloaking • Acoustic Filters • Acoustic Waveguides • Artificial Piezoelectricity • Crystal Acoustics • Diffraction Tomography • Gauge Invariance • negative refraction • Nonlinear Phononic Crystals • seismic metamaterials
ISBN-10	981-13-4866-9 / 9811348669
ISBN-13	978-981-13-4866-2 / 9789811348662
Zustand	Neuware