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2018 | Book

Acoustics-A Textbook for Engineers and Physicists

Volume II: Applications

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About this book

This textbook provides graduate and advanced undergraduate students with a comprehensive introduction to the application of basic principles and concepts for physical and engineering acoustics. Many of the chapters are independent, and all build from introductory to more sophisticated material. Written by a well-known textbook author with 39 years of experience performing research, teaching, and mentoring in the field, it is specially designed to provide maximum support for learning. Derivations are rigorous and logical, with thorough explanations of operations that are not obvious. Many of the derivations and examples have not previously appeared in print. Important concepts are discussed for their physical implications and implementation. Many of the 56 examples are mini case studies that address systems students will find to be interesting and motivating for continued study. The example solutions address both the significance of the example and the reasoning underlying the formulation. Tasks that require computational work are fully explained. This volume contains 168 homework exercises, accompanied by a detailed solutions manual for instructors. Building on the foundation provided in Volume I: Fundamentals, this text offers a knowledge base that will enable the reader to begin undertaking research and to work in the core areas of acoustics.

Table of Contents

Frontmatter
Chapter 7. Radiation from Vibrating Bodies
Abstract
The previous chapters were devoted to the analysis and interpretation of specific types of acoustic waves. In this chapter, the central theme is phenomenological. We will consider a variety of situations in which the task is to determine the acoustic field generated by a body that executes a specified vibration. These are the problems in acoustic radiation.
Jerry H. Ginsberg
Chapter 8. Radiation from a Source in a Baffle
Abstract
Section  introduced a correction for the pressure-release condition at the open end of a one-dimensional waveguide. The basis for that development is the radiation properties of a circular piston flush mounted in a wall whose extent is large. The wall is referred to as a baffle. A piston serves well as a model of real transducers that might be piezoceramics in an underwater projector.
Jerry H. Ginsberg
Chapter 9. Modal Analysis of Waveguides
Abstract
We return to situations where boundaries guide the direction in which sound may propagate. The difference from the one-dimensional waveguides considered in Chaps. 2 and 3 is that some feature will vary transversely to the propagation direction.
Jerry H. Ginsberg
Chapter 10. Modal Analysis of Enclosures
Abstract
To say that a region containing an ideal fluid is a “cavity” is to imply that it is a void in some solid region. The synonymous term “enclosure” is more descriptive, in the sense that it conveys the notion that the domain is surrounded by a solid boundary. A tube terminated at both ends is the simplest configuration to analyze. Sections 2.​5.​3 and 3.​2.​2 addressed planar waves in such a system, but our concern here will extend to higher order waveguide modes. As is true for planar waves, closure results in reflection of the incident waves, thereby setting up a field that features standing waves in all directions. The developments that follow will primarily deal with regular geometries. The chapter will close by developing an approximate method for irregular cavities. The closure will be an approximate method for cavities and an elastic structures.
Jerry H. Ginsberg
Chapter 11. Geometrical Acoustics
Abstract
Our explorations thus far have analyzed sound fields from a global perspective, in which field equations and boundary conditions for the entire system were satisfied concurrently.
Jerry H. Ginsberg
Chapter 12. Scattering
Abstract
Have you ever wondered why you can hear sound even though there is a building between you and the source, or why the sky is blue, or how dolphins can identify objects underwater? These phenomena are manifestations of scattering.
Jerry H. Ginsberg
Chapter 13. Nonlinear Acoustic Waves
Abstract
When told that a system’s response is quite large, a knowledgeable individual will anticipate that nonlinear effects are important. This certainly is the case in acoustics, as exemplified by an explosion, wherein peak pressures might be well above atmospheric. However, even if the pressure is not large, there is another parameter whose largeness might require consideration of nonlinear effects.
Jerry H. Ginsberg
Correction to: Acoustics—A Textbook for Engineers and Physicists
Jerry H. Ginsberg
Backmatter
Metadata
Title
Acoustics-A Textbook for Engineers and Physicists
Author
Jerry H. Ginsberg
Copyright Year
2018
Electronic ISBN
978-3-319-56847-8
Print ISBN
978-3-319-56846-1
DOI
https://doi.org/10.1007/978-3-319-56847-8

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