000			03276nam a22005415i 4500
001			978-1-4939-1640-5
003			DE-He213
005			20200421112052.0
007			cr nn 008mamaa
008			140922s2015 xxu| s |||| 0|eng d
020			_a9781493916405 _9978-1-4939-1640-5
024	7		_a10.1007/978-1-4939-1640-5 _2doi
050		4	_aTA365-367.5
072		7	_aTTA _2bicssc
072		7	_aTEC001000 _2bisacsh
082	0	4	_a620.2 _223
100	1		_aWu, Sean F. _eauthor.
245	1	4	_aThe Helmholtz Equation Least Squares Method _h[electronic resource] : _bFor Reconstructing and Predicting Acoustic Radiation / _cby Sean F. Wu.
264		1	_aNew York, NY : _bSpringer New York : _bImprint: Springer, _c2015.
300			_aXIII, 233 p. 82 illus., 61 illus. in color. _bonline resource.
336			_atext _btxt _2rdacontent
337			_acomputer _bc _2rdamedia
338			_aonline resource _bcr _2rdacarrier
347			_atext file _bPDF _2rda
490	1		_aModern Acoustics and Signal Processing
505	0		_aChapter 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.
520			_aThis 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.
650		0	_aEngineering.
650		0	_aMathematical models.
650		0	_aAcoustics.
650		0	_aVibration.
650		0	_aDynamical systems.
650		0	_aDynamics.
650		0	_aAcoustical engineering.
650	1	4	_aEngineering.
650	2	4	_aEngineering Acoustics.
650	2	4	_aAcoustics.
650	2	4	_aVibration, Dynamical Systems, Control.
650	2	4	_aMathematical Modeling and Industrial Mathematics.
710	2		_aSpringerLink (Online service)
773	0		_tSpringer eBooks
776	0	8	_iPrinted edition: _z9781493916399
830		0	_aModern Acoustics and Signal Processing
856	4	0	_uhttp://dx.doi.org/10.1007/978-1-4939-1640-5
912			_aZDB-2-ENG
942			_cEBK
999			_c57275 _d57275