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http://dx.doi.org/10.5762/KAIS.2011.12.5.2011

NAH method for reducing sound source generated in air-conditioning rotary compressor  

Kim, Heui-Cheol (School of Mechanical Engineering Yeungnam University)
Lee, Dong-Yeon (School of Mechanical Engineering Yeungnam University)
Yi, Hwa-Cho (School of Mechanical Engineering Yeungnam University)
Shim, Jae-Sool (School of Mechanical Engineering Yeungnam University)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.12, no.5, 2011 , pp. 2011-2018 More about this Journal
Abstract
The paper demonstrates how to deal with the Near-field Acoustic Holography method (NAH) for reducing noise source which is generated in air-conditioning compressor. Sound radiation was measured for both normal compressor and fault compressor. The acoustic noise holograms are predicted by measuring at discrete multiple points around the two compressors and are thereafter reconstructed on the surface of the compressors. 1344 measuring points are used by two microphones in which one is scanning microphone and the other is reference microphone. NAH is a good tool for the visualization of Sound so we can show the source of sound graphically. In this paper, the NAH method found the exact noise source position on the surface of the compressor and the noise-related sub part in the compressor. We found the NAH and is very useful as a noise reduction tool for home-appliance device.
Keywords
Near-Field Acoustic Holography (NAH); Rotary compressor; Visualization;
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  • Reference
1 J. D. Maynard, E. G. Williams, and Y. Lee, "Near-field acoustic holography: I. Theory of generalized holography and the development of NAH," J. Acoust. Soc. Am. 78, pp.1395-1413 (1985)   DOI
2 B.-K. Kim and J.-G. Ih, "On the reconstruction of vibro-acoustic field over the surface enclosing an interior space using the boundary element method," J. Acoust. Soc. Am. 100, pp.3003-3016 (1996)   DOI
3 S. F. Wu, "On reconstruction of acoustic pressure fields by using HELS method," J. Acoust. Soc. Am. 107, pp.2511-2522 (2000)   DOI
4 H. Iwata, K. Sato, M. Hirabayashi, "Prediction of noise from a scroll compressor," International Compressor Engineering Conference, Perdue,1988, pp.977-986
5 K. Sano, Kawahara, Fujiwara,Ishii, "Experimental study for noise and vibration in Hermetic type compressor(1st report:Reduction of noise caused by resonance of each scroll compressor element)," Trans. JSRAE,Vol.14,No.2, 1997, pp.125-136
6 L .E. Kinsler, A. R. Frey, A. B. Coppens and J. V. Sanders, Fundamentals of Acoustics (John Wiley & Sons, 1982)
7 V. Isakov, S. Wu, On theory and application of the Helmholtz equation least squares method in inverse acoustics, Inverse Problems, 18 (2002), pp. 1147-1159.   DOI
8 H.-E. de Bree, The Microflown: An acoustic particle velocity sensor, Acoustics Australia 31, pp.91-94 2003.
9 J. D. Maynard, E.G. Williams and Y. Lee, Near-field acoustic holography: I. Theory of generalized holography and the development of NAH, Journal of the Acoustical Societyof America 78, pp.1395-1413, 1985.   DOI
10 R. Raangs, W.F. Druyvesteyn and H.-E. de Bree, A low-cost intensity probe, Journal of the Audio Engineering Society 51, 344-357, 2003.
11 S. F. Wu, "On reconstruction of acoustic pressure fields using the Helmholtz equation least squares method," J. Acoust. Soc. Am. 107, pp.2511-2522 (2000).   DOI
12 G.-T. Kim and B.-T. Lee, "3-D sound source reconstruction and field reprediction using the Helmholtz integral equation," J. Sound Vib. 136, pp.245-261 (1990).   DOI
13 S.-C. Kang and J.-G. Ih, "The use of partially measured source data in near-field acoustical holography based on the BEM," J. Acoust. Soc. Am. 107, pp.2472-2479   DOI
14 E. G. Williams, "An overview of the inverse problem for sound reconstruction in interior spaces," J. Acoust. Soc. Am. 105, 968(A) (1999).
15 E. G. Williams, B. H. Houson, P. C.Herdic, S. T. Raveendra, and B. Gardner, "Interior near-field acoustical holography in flight," J.Acoust. Soc. Am. 108, pp.1451-1463 (2000).   DOI
16 E. G. Williams, Fourier Acoustics:Sound Radiation and Nearfield Acoustical Holography, pp.115-182 (Academic, San Diego, California, 1999).
17 E. G. Williams, "Regularization methods for near-field acoustical holography," J. Acoust. Soc. Am. 110, pp.1976-1988 (2001).   DOI
18 E. G. Williams, H. D. Dardy and R. G. Fink " Nearfield acoustic holography using an underwater, automated scanner," J. Acoust. Soc. Am. 78(2), pp.789-798 (1985).   DOI
19 R. C. Wei, A. L. Pate and M. R. Bai, "Power Estimation from Acoustical Holography,"ASME Winter Annual Meeting, Nov. pp.25-30 (1990)
20 K. Sano, K. Mitsui, "Analysis of Hermatic rolling piston type compressor noise and counter measurement," International Compressor Engineering Conference, Perdue,1986, pp.242-250