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The Helmholtz equation least squares...

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The Helmholtz equation least squares methodfor reconstructing and predicting acoustic radiation /

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	The Helmholtz equation least squares methodby Sean F. Wu.
其他題名:	for reconstructing and predicting acoustic radiation /
作者:	Wu, Sean F.
出版者:	New York, NY :Springer New York :2015.
面頁冊數:	xiii, 233 p. :ill. (some col.), digital ;24 cm.
Contained By:	Springer eBooks
標題:	Acoustical engineeringMathematical models.
電子資源:	http://dx.doi.org/10.1007/978-1-4939-1640-5
ISBN:	9781493916405 (electronic bk.)

The Helmholtz equation least squares methodfor reconstructing and predicting acoustic radiation /
Wu, Sean F.

The Helmholtz equation least squares methodfor reconstructing and predicting acoustic radiation /[electronic resource] :by Sean F. Wu. - New York, NY :Springer New York :2015. - xiii, 233 p. :ill. (some col.), digital ;24 cm. - Modern acoustics and signal processing. - Modern acoustics and signal processing..

Chapter 1. Introduction -- Chapter 2. The Spherical Wave Functions -- Chapter 3. The Helmholtz Equation Least Squares (HELS) Method -- Chapter 4. Validity of the HELS Method -- Chapter 5. Implementation of the HELS Method -- Chapter 6. Combined Helmholtz Equation Least Squares (CHELS) Method -- Chapter 7. Hybrid HELS -- Chapter 8. Equivalent Sources Using HELS -- Chapter 9. Transient HELS -- Chapter 10. Panel Acoustic Contribution Analysis Using HELS -- References -- Index.

This book gives a comprehensive introduction to the Helmholtz Equation Least Squares (HELS) method and its use in diagnosing noise and vibration problems. In contrast to the traditional NAH technologies, the HELS method does not seek an exact solution to the acoustic field produced by an arbitrarily shaped structure. Rather, it attempts to obtain the best approximation of an acoustic field through the expansion of certain basis functions. Therefore, it significantly simplifies the complexities of the reconstruction process, yet still enables one to acquire an understanding of the root causes of different noise and vibration problems that involve arbitrarily shaped surfaces in non-free space using far fewer measurement points than either Fourier acoustics or BEM based NAH. The examples given in this book illustrate that the HELS method may potentially become a practical and versatile tool for engineers to tackle a variety of complex noise and vibration issues in engineering applications.

ISBN: 9781493916405 (electronic bk.)

Standard No.: 10.1007/978-1-4939-1640-5doiSubjects--Topical Terms:

288967
Acoustical engineering
--Mathematical models.

LC Class. No.: TA365

Dewey Class. No.: 620.2015118

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