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Acoustic Attenuation Performance of a Multi-chamber Muffler with Selective Sound-absorbing Material Placement
Technical Paper
2007-01-2202
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Combining the acoustic attenuation behaviors of reactive and dissipative mufflers, a hybrid muffler design may be expected to provide broadband high noise attenuation and low pressure drop. In the present study, a multi-chamber muffler with selective sound-absorbing material placement proposed by Sterrett et al [1] is considered. The one-dimensional analytical approach based on the plane wave propagation theory and three-dimensional substructure boundary element method are developed to predict the acoustic attenuation characteristics of the multi-chamber muffler. The effects of flow-resistivity of sound absorbing material, porosity of perforation and geometrical parameters on the acoustic attenuation performance of the multi-chamber hybrid muffler are investigated in detail.
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Citation
Ji, Z., "Acoustic Attenuation Performance of a Multi-chamber Muffler with Selective Sound-absorbing Material Placement," SAE Technical Paper 2007-01-2202, 2007, https://doi.org/10.4271/2007-01-2202.Also In
References
- Sterrett D. E. Pekrul E. C. Turner T. P. Multi-chamber muffler with selective sound absorbent material placement United States Patent USA 1998
- Lee I. J. Selamet A. Huff N. T. Acoustic characteristics of coupled dissipative and reactive silencers SAE Paper 2003-01-1643 2003
- Lee I. J. Selamet A. Huff N. T. Hrdlicka M. Design of a hybrid exhaust silencing system for a production engine SAE Paper 2005-01-2349 2005
- Wang C. N. Numerical decoupling analysis of a resonator with absorbent material Applied Acoustics 58 109 122 1999
- Selamet A. Lee I. J. Ji Z. L. Huff N. T. Acoustic attenuation performance of perforated absorbing silencers SAE Paper 2001-01-1435 2001
- Seybert A. F. Seman R. A. Lattuca M. D. Boundary element prediction of sound propagation in ducts containing bulk absorbing materials Journal of Vibration and Acoustics 120 976 981 1998
- Wu T. W. Cheng C. Y. R. Zhang P. A direct mixed-body boundary element method for packed silencers Journal of the Acoustical Society of America 111 2566 2572 2002
- Seybert A. F. Cheng C. Y. R. Application of the boundary element method to acoustic cavity response and muffler analysis Journal of Vibration, Acoustics, Stress, and Reliability in Design 109 15 21 1987
- Cheng C. Y. R. Seybert A. F. A multidomain boundary element solution for silencer and muffler performance prediction Journal of Sound and Vibration 151 119 129 1991
- Wang C. N. Tse C. C. Chen Y. N. A boundary element analysis of a concentric-tube resonator Engineering analysis with boundary elements 12 21 27 1993
- Ji Z. L. Ma Q. Zhang Z. H. Application of the boundary element method to predicting acoustic performance of expansion chamber mufflers with mean flow Journal of Sound and Vibration 173 57 71 1994
- Ji Z. L. Selamet A. Boundary element analysis of three-pass perforated duct mufflers Noise Control Engineering Journal 48 5 151 156 2000
- Sullivan J. W. Crocker M. J. Analysis of concentric-tube resonators having unpartitioned cavities Journal of the Acoustical Society of America 64 207 215 1978
- Utsuno U. Tanaka T. Fujikawa T. Seybert A. F. Transfer function method for measuring characteristic impedance and propagating constant of porous materials Journal of the Acoustical Society of America 86 637 643 1989
- Delany M. E. Bazley E. N. Acoustical properties of fibrous absorbent materials Applied Acoustics 3 105 116 1970
- Huff N. T. Materials for absorptive silencer systems SAE Paper 2001-01-1458 2001
- Kirby R. Cummings A. The impedance of perforated plates subjected to grazing gas flow and backed by porous media Journal of Sound and Vibration 217 619 636 1998
- Lee I. J. Selamet A. Huff N. T. Impact of perforation impedance on the transmission loss of reactive and dissipative silencers Journal of the Acoustical Society of America 120 3706 3713 2006
- Selamet A. Ji Z. L. Radavich P. M. Acoustic attenuation performance of circular expansion chambers with offset inlet/outlet: II. Comparison with computational and experimental studies Journal of Sound and Vibration 213 4 619 641 1998
- Selamet A. Ji Z. L. Diametral plane-wave analysis for short circular chambers with end offset inlet/outlet and side extended inlet/outlet Journal of Sound and Vibration 214 3 580 587 1998