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Journal articles on the topic 'Nearfield acoustical holography'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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1

Williams, Earl G. "Patch nearfield acoustical holography." Journal of the Acoustical Society of America 112, no. 5 (November 2002): 2352. http://dx.doi.org/10.1121/1.4779525.

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2

Wu, Sean F. "Transient nearfield acoustical holography." Journal of the Acoustical Society of America 136, no. 4 (October 2014): 2171. http://dx.doi.org/10.1121/1.4899855.

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3

Cho, Yong Thung, J. Stuart Bolton, Yong‐Joe Kim, and Hyu‐Sang Kwon. "Two‐microphone nearfield acoustical holography." Journal of the Acoustical Society of America 118, no. 3 (September 2005): 1917. http://dx.doi.org/10.1121/1.4780380.

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4

Williams, Earl G., and Karl B. Washburn. "Broadband generalized nearfield acoustical holography." Journal of the Acoustical Society of America 80, S1 (December 1986): S94—S95. http://dx.doi.org/10.1121/1.2024057.

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5

Williams, Earl G., and J. Adin Mann. "Fourier Acoustics: Sound Radiation and Nearfield Acoustical Holography." Journal of the Acoustical Society of America 108, no. 4 (October 2000): 1373. http://dx.doi.org/10.1121/1.1289662.

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6

Wu, Sean. "Noise diagnosis using nearfield acoustical holography." Journal of the Acoustical Society of America 122, no. 5 (2007): 3027. http://dx.doi.org/10.1121/1.2942826.

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7

Kwon, Hyuck Sang. "Multi-Reference Scan-Based Nearfield Acoustical Holography." Key Engineering Materials 321-323 (October 2006): 1249–52. http://dx.doi.org/10.4028/www.scientific.net/kem.321-323.1249.

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Multi-reference, scan-based Nearfield Acoustical Holography (NAH) is a useful measurement tool that can be applied when an insufficient number of microphones are available to make measurements on a complete hologram surface simultaneously. The scan-based procedure can be used to construct a complete hologram by joining together sub-holograms captured using a relatively small, roving scan array and a fixed reference array. For the procedure to be successful, the source levels must remain stationary for the time taken to record the complete hologram: that is unlikely to be the case in practice, however. Usually, the reference signal levels measured during each scan differ from each other with the result that spatial noise is added to the hologram. A non-stationarity compensation procedure that is based on the acoustical transfer functions between the sources and both the reference and scanning, field microphones are invariable is introduced. Numerical and experimental results show well the availability of the introduced procedures to suppress the spatially distributed noise and to get better sound fields partially separated.

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8

Kim, Yong‐joe, Moohyung Lee, and J. Stuart Bolton. "Multi‐reference methods for nearfield acoustical holography." Journal of the Acoustical Society of America 129, no. 4 (April 2011): 2491. http://dx.doi.org/10.1121/1.3588219.

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9

Maynard, J. D. "Nearfield acoustical holography and nonlinear sound fields." Journal of the Acoustical Society of America 121, no. 5 (May 2007): 3069. http://dx.doi.org/10.1121/1.4781862.

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10

Williams, Earl G. "Current advances in cylindrical nearfield acoustical holography." Journal of the Acoustical Society of America 84, S1 (November 1988): S171—S172. http://dx.doi.org/10.1121/1.2025966.

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11

Zechmann, Edward, and J. Adin Mann. "Extending nearfield acoustical holography past intermediate sources." Journal of the Acoustical Society of America 109, no. 5 (May 2001): 2363. http://dx.doi.org/10.1121/1.4744313.

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12

Ramapriya, Deepthee Madenoor, Gabriele Gradoni, Stephen C. Creagh, Gregor Tanner, Elise Moers, and Inés Lopéz Arteaga. "Nearfield acoustical holography – a Wigner function approach." Journal of Sound and Vibration 486 (November 2020): 115593. http://dx.doi.org/10.1016/j.jsv.2020.115593.

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13

Zhao, Xiang. "Energetically optimal regularization in nearfield acoustical holography." Journal of the Acoustical Society of America 117, no. 4 (April 2005): 2546. http://dx.doi.org/10.1121/1.4809411.

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14

Williams, Earl G., Brian H. Houston, and Joseph A. Bucaro. "Broadband nearfield acoustical holography for vibrating cylinders." Journal of the Acoustical Society of America 86, no. 2 (August 1989): 674–79. http://dx.doi.org/10.1121/1.398245.

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15

Williams, Earl G., Henry D. Dardy, and Richard G. Fink. "Nearfield acoustical holography using an underwater, automated scanner." Journal of the Acoustical Society of America 78, no. 2 (August 1985): 789–98. http://dx.doi.org/10.1121/1.392449.

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16

Strong, William Y., and Gordon Ebbitt. "A scanning microphone implementation of nearfield acoustical holography." Journal of the Acoustical Society of America 79, S1 (May 1986): S35. http://dx.doi.org/10.1121/1.2023186.

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17

UEDA, Masanori, DAISUKE Hisamatsu, Ichiro HAGIWARA, and Wakae KOZUKUE. "2416 Application of Wavelet on Nearfield Acoustical Holography." Proceedings of Design & Systems Conference 2001.11 (2001): 251–53. http://dx.doi.org/10.1299/jsmedsd.2001.11.251.

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18

Hayek, S. I., and T. W. Luce. "Aperture Effects in Planar Nearfield Acoustical Imaging." Journal of Vibration and Acoustics 110, no. 1 (January 1, 1988): 91–96. http://dx.doi.org/10.1115/1.3269486.

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The influence of the size of the measurement aperture on the accuracy of reconstruction of the pressure and vector velocity fields using underwater nearfield acoustical holography technique is examined. In this measurement technique, the amplitude and phase of the pressure in the nearfield of a planar structure submerged in water is measured at a set of points on a planar surface which constitute the measurement aperture. The reconstruction of the pressure and velocity vector fields on the surface of a vibrating submerged steel plate was found to be insensitive to the aperture size down to the size of the structure. Examples of aperture sizes ranging from six (6) times down to 1/2 of the size vibrating steel plate are shown. Thus, the total length of time spent on measurements underwater can be drastically reduced.

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19

Dziklinski, Richard, and Sean Wu. "The Nyquist spatial sampling requirement in nearfield acoustical holography." Journal of the Acoustical Society of America 126, no. 4 (2009): 2255. http://dx.doi.org/10.1121/1.3249271.

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20

Hwang, Eui Seok, Jong Cheon Sun, and Yeon June Kang. "Beamforming‐based partial field decomposition in nearfield acoustical holography." Journal of the Acoustical Society of America 118, no. 3 (September 2005): 1916. http://dx.doi.org/10.1121/1.4780372.

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21

Hayashi, Takuro. "A noise source detection system using nearfield acoustical holography." Journal of the Acoustical Society of America 84, S1 (November 1988): S173. http://dx.doi.org/10.1121/1.2025970.

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22

Kim, Yong‐Joe, Hyu‐Sang Kwon, and Seunghwan Jung. "Planar nearfield acoustical holography in high‐speed subsonic flow." Journal of the Acoustical Society of America 127, no. 3 (March 2010): 1793. http://dx.doi.org/10.1121/1.3383989.

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23

KOZUKUE, Wakae, and Ichiro HAGIWARA. "The Role of Nearfield Acoustical Holography in Design System." Proceedings of Design & Systems Conference 2001.10 (2001): 264–67. http://dx.doi.org/10.1299/jsmedsd.2001.10.264.

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24

Muddeen, Fasil, and Brian Copeland. "Sound radiation from Caribbean steelpans using nearfield acoustical holography." Journal of the Acoustical Society of America 131, no. 2 (February 2012): 1558–65. http://dx.doi.org/10.1121/1.3675974.

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25

Deng, Jiang Hua, Jun Hong Dong, and Guang De Meng. "Sound Source Identification and Acoustic Contribution Analysis Using Nearfield Acoustic Holography." Advanced Materials Research 945-949 (June 2014): 717–24. http://dx.doi.org/10.4028/www.scientific.net/amr.945-949.717.

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The main goal of the present paper is to provide a method of source identification. Firstly, statistically optimal near-field acoustical holography (SONAH) techniques are applied to locate sound sources with the reflected sound field. In the presence of reflection plane parallel and perpendicular to the source plane, the incoming wave and reflected waves are separated based on the acoustic superposition principle and acoustic mirror image principle to satisfy the condition of the sound sources reconstruction using SONAH. Secondly, contribution of noise source to the special field point is analyzed and noise source ranking of interior panel groups are evaluated based the proposed three step acoustic contribution method. Finally, this method is verified experimentally.

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26

Bowen, Donald John. "Development and implementation of nearfield acoustical holography for wideband sources." Journal of the Acoustical Society of America 81, no. 4 (April 1987): 1204. http://dx.doi.org/10.1121/1.394648.

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27

Williams, Earl G., Henry D. Dardy, and Karl B. Washburn. "Generalized nearfield acoustical holography for cylindrical geometry: Theory and experiment." Journal of the Acoustical Society of America 81, no. 2 (February 1987): 389–407. http://dx.doi.org/10.1121/1.394904.

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28

Kim, Yong‐Joe, and Yaying Niu. "Statistically optimal nearfield acoustical holography in subsonically moving fluid medium." Journal of the Acoustical Society of America 129, no. 4 (April 2011): 2492. http://dx.doi.org/10.1121/1.3588223.

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29

Gan, W. S. "Application of nearfield acoustical holography to infrasonic noise source determination." Journal of the Acoustical Society of America 80, S1 (December 1986): S119. http://dx.doi.org/10.1121/1.2023603.

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30

Thomas, Jean-Hugh, and Jean-Claude Pascal. "Wavelet preprocessing for lessening truncation effects in nearfield acoustical holography." Journal of the Acoustical Society of America 118, no. 2 (August 2005): 851–60. http://dx.doi.org/10.1121/1.1945469.

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31

Attendu, Jean-Michel, and Annie Ross. "Time domain nearfield acoustical holography with three-dimensional linear deconvolution." Journal of the Acoustical Society of America 143, no. 3 (March 2018): 1672–83. http://dx.doi.org/10.1121/1.5027841.

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32

Zhou, Pan, Sean F. Wu, and Wanyou Li. "Reconstructing Excitation Forces Acting on a Baffled Plate Using Nearfield Acoustical Holography." Journal of Theoretical and Computational Acoustics 26, no. 01 (March 2018): 1750028. http://dx.doi.org/10.1142/s2591728517500281.

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This paper deals with reconstruction of excitation forces and analyses of the root causes of vibro-acoustic responses of an elastic structure by using nearfield acoustical holography and modal expansion theory. Derivations of formulations for reconstructing excitation forces, including distributed, line, and point forces, acting on the back side of a rectangular thin plate simply supported on an infinite, rigid baffle, are presented. The reason for choosing a baffled plate is that analytic solutions to vibro-acoustic responses are readily available, so the accuracy in reconstruction can be examined rigorously. For simplicity, the effect of fluid loading is neglected, and input data are assumed error-free. Numerical examples of reconstructing excitation forces are presented, and results agree very well with benchmark values. The impacts of various parameters, such as the ratio of measurement aperture versus plate size, microphone spacing, standoff distance, the number of natural modes, etc., on reconstruction accuracy are investigated. Needless to say, in practice such idealized scenario is nonexistent and the accuracy in reconstruction of excitation forces are severely compromised by measurement errors and interfering signals. Nevertheless, the concept as presented is sound, except that more effective regularizations must be employed to enhance signal to noise ratio, and reconstruction results.

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33

Kim, Yong-Joe, and Yaying Niu. "Improved Statistically Optimal Nearfield Acoustical Holography in subsonically moving fluid medium." Journal of Sound and Vibration 331, no. 17 (August 2012): 3945–60. http://dx.doi.org/10.1016/j.jsv.2012.03.028.

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34

Niu, Yaying, and Yong-Joe Kim. "Nonlinear, dissipative, planar Nearfield Acoustical Holography based on Westervelt wave equation." Journal of Sound and Vibration 332, no. 4 (February 2013): 952–67. http://dx.doi.org/10.1016/j.jsv.2012.09.023.

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35

Dziklinski, Richard, and Sean Wu. "Spatial resolution of Helmholtz equation least‐squares‐based nearfield acoustical holography." Journal of the Acoustical Society of America 121, no. 5 (May 2007): 3070. http://dx.doi.org/10.1121/1.4781869.

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36

Saijyou, Kenji, and Chiaki Okawara. "Regularization method for measurement of structural intensity using nearfield acoustical holography." Journal of the Acoustical Society of America 117, no. 4 (April 2005): 2039–45. http://dx.doi.org/10.1121/1.1875652.

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37

Williams, Earl G. "Measurement of the acoustic intensity in the nearfield of a fluid‐loaded, point‐driven cylinder using nonplanar nearfield acoustical holography." Journal of the Acoustical Society of America 78, S1 (November 1985): S25. http://dx.doi.org/10.1121/1.2022713.

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38

Aujogue, Nicolas, Annie Ross, and Jean-Michel Attendu. "Time-space domain nearfield acoustical holography for visualizing normal velocity of sources." Mechanical Systems and Signal Processing 139 (May 2020): 106363. http://dx.doi.org/10.1016/j.ymssp.2019.106363.

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39

Attendu, Jean-Michel, and Annie Ross. "Sparse regularization for reconstructing transient sources with time domain nearfield acoustical holography." Journal of the Acoustical Society of America 143, no. 6 (June 2018): 3796–806. http://dx.doi.org/10.1121/1.5043088.

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40

Niu, Yaying, and Yong‐Joe Kim. "Fan noise visualization and noise source identification by using nearfield acoustical holography." Journal of the Acoustical Society of America 128, no. 4 (October 2010): 2381. http://dx.doi.org/10.1121/1.3508467.

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41

Strong, William Y. "Using nearfield acoustical holography to analyze a source excited by multiple frequencies." Journal of the Acoustical Society of America 80, S1 (December 1986): S119. http://dx.doi.org/10.1121/1.2023602.

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42

Ruhala, Richard J., and Courtney B. Burroughs. "Separation of partially coherent noise sources for application to Nearfield Acoustical Holography." Noise Control Engineering Journal 56, no. 5 (2008): 386. http://dx.doi.org/10.3397/1.2979214.

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43

Washburn, Karl B., Karl Grosh, and Earl G. Williams. "Modal analysis of fluid‐loaded, axisymmetric shells using nearfield acoustical holography data." Journal of the Acoustical Society of America 87, S1 (May 1990): S50. http://dx.doi.org/10.1121/1.2028257.

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44

Saijyou, Kenji. "Measurement of structural intensity using boundary element method-based nearfield acoustical holography." Journal of the Acoustical Society of America 121, no. 6 (2007): 3493. http://dx.doi.org/10.1121/1.2724760.

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45

Bai, Mingsian R., Ching-Cheng Chen, and Jia-Hong Lin. "On optimal retreat distance for the equivalent source method-based nearfield acoustical holography." Journal of the Acoustical Society of America 129, no. 3 (March 2011): 1407–16. http://dx.doi.org/10.1121/1.3533734.

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46

Williams, Earl G., and Anthony J. Romano. "Measurement of structural intensity in submerged plates and shells using nearfield acoustical holography." Journal of the Acoustical Society of America 85, S1 (May 1989): S102. http://dx.doi.org/10.1121/1.2026611.

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47

Williams, Earl G., Brian H. Houston, and Peter C. Herdic. "Fast Fourier transform and singular value decomposition formulations for patch nearfield acoustical holography." Journal of the Acoustical Society of America 114, no. 3 (September 2003): 1322–33. http://dx.doi.org/10.1121/1.1603767.

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48

Kwon, Hyu-Sang, Yaying Niu, and Yong-Joe Kim. "Planar nearfield acoustical holography in moving fluid medium at subsonic and uniform velocitya)." Journal of the Acoustical Society of America 128, no. 4 (October 2010): 1823–32. http://dx.doi.org/10.1121/1.3478771.

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49

Zhao, Xiang, and Sean F. Wu. "Reconstruction of acoustic radiation from vibrating objects in a half space using hybrid nearfield acoustical holography." Journal of the Acoustical Society of America 114, no. 4 (October 2003): 2443. http://dx.doi.org/10.1121/1.4779308.

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50

Valdivia, Nicolas P. "Krylov Subspace iterative methods for time domain boundary element method based nearfield acoustical holography." Journal of Sound and Vibration 484 (October 2020): 115498. http://dx.doi.org/10.1016/j.jsv.2020.115498.

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