Skip to main content Accessibility help

We use cookies to distinguish you from other users and to provide you with a better experience on our websites. Close this message to accept cookies or find out how to manage your cookie settings.

Close cookie message
×
Hostname: page-component-cd9895bd7-q99xh Total loading time: 0 Render date: 2024-12-18T16:00:46.715Z Has data issue: false hasContentIssue false

5 - Resonators, Expansion Chambers and Silencers

Published online by Cambridge University Press:  11 May 2021

Erkan Dokumacı
Erkan Dokumacı
Affiliation:
Dokuz Eylül University
Get access

Summary

Chambers and resonators are used as noise control devices in almost all industrial duct systems. In Chapter 5, transmission loss is defined and, using the acoustic models and the assembly techniques described in previous chapters, transmission loss characteristics of various chamber and resonator types are demonstrated. Also discussed are the calculation of the shell noise and mean pressure loss (or back pressure), which may impose trade-offs on effective use of these devices in duct-borne noise control.

Keywords

resonatorsexpansion chambersmufflerssilencerstransmission lossreciprocal elementspressure-dropback-pressuretemperature drop
Type
Chapter
Information
Duct Acoustics
Fundamentals and Applications to Mufflers and Silencers
 , pp. 173 - 237
Publisher: Cambridge University Press
Print publication year: 2021

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Stewart, G.W. and Lindsay, R.B., Acoustics, (D. Van Nostrand Co., Inc., 1930).Google Scholar
Davis, D.D., Stokes, G.M., Moore, D. and Stevens, J.L., Theoretical and experimental investigation of mufflers with comments on engine-exhaust muffler design, NACA Report (1954), 1192.Google Scholar
Davies, P.A.O.L., The design of silencers for internal combustion engines, J. Sound Vib. 1 (1964), 185–201.Google Scholar
Alfredson, R.J. and Davies, P.A.O.L., Performance of exhaust silencer components, J. Sound Vib. 15 (1971), 175–196.Google Scholar
Davies, P.A.O.L., Practical flow duct acoustics J. Sound Vib. 241 (1988), 91–115.Google Scholar
Shearer, J.L., Murphy, A.T. and Richardson, H.H., Introduction to System Dynamics, (Reading: Addison-Wesley, 1971).Google Scholar
Seo, S.-H. and Kim, Y.-H., Silencer design by using array resonators for low frequency band noise reduction, J. Acoust. Soc. of Am. 118 (2005), 2332–2338.Google Scholar
Torregrosa, A.J., Broatch, A. and Payri, R., A study of the influence of mean flow on the acoustic performance of Herschel-Quincke tubes, J. Acoust. Soc. Am. 107 (2000), 1874–1879.Google Scholar
Hallez, R.F., Burdisso, R.A., Analytical modeling of Herschel-Quincke concept applied to inlet turbofan engines, NASA/CR-2002-211429 (2002).Google Scholar
Davies, P.O.A.L. and Holland, K.R., The observed aeroacoustic behaviour of some flow-excited expansion chambers, J. Sound Vib. 239 (2001), 695–708.Google Scholar
Torregrossa, A.J., Broatch, A., Climent, H. and Andres, I., A note on Srouhal number dependence of the relative importance of internal and external sources in IC engine exhaust systems, J. Sound Vib. 282 (2005), 1255–1263.CrossRefGoogle Scholar
Davies, P.O.A.L., Transmission matrix representation of exhaust system acoustic characteristics, J. Sound Vib. 151 (1991), 333–338.CrossRefGoogle Scholar
Eversman, W., A reverse flow theorem and acoustic reciprocity in compressible potential flows in ducts, J. Sound Vib. 246 (2001), 71–95.Google Scholar
Parrott, T.L., An improved method for design of expansion chamber mufflers with application to an operational helicopter, NASA TN D-7309 (1973).Google Scholar
Nelson, P.A., Halliwell, N.A. and Doak, P.E., Fluid dynamics of a flow excited resonance: part I: experiment, J. Sound Vib. 78 (1981), 15–38.Google Scholar
Davies, P.O.A.L., Flow-acoustic coupling in ducts, J. Sound Vib. 77 (1981), 191–209.CrossRefGoogle Scholar
Bruggerman, J.C., Hirschberg, A., van Dongen, M.E.H., Wijnands, A.P.J. and Gorter, J., Self-sustained aero-acoustic pulsations in gas transport systems: experimental study of the influence of closed side branches, J. Sound Vib. 150 (1991), 371–393.CrossRefGoogle Scholar
Nelson, P.A., Halliwell, N.A. and Doak, P.E., Fluid dynamics of a flow excited resonance: part II: flow acoustic interaction, J. Sound Vib. 91 (1983), 375–402.CrossRefGoogle Scholar
Radavich, P.M. and Selamet, A., A computational approach for flow-acoustic coupling in closed side branches, J. Acoust. Soc. Am. 109 (2001), 1343–1353.CrossRefGoogle ScholarPubMed
Dequand, S.M.N., Duct aeroacoustics: from technological application to the flute, (Doctoral Thesis, Eindhoven: Technische Universiteit Eindhoven, 2001) (doi: 10.6100/IR550318).CrossRefGoogle Scholar
Knotts, B.D. and Selamet, A., Suppression of flow-acoustic coupling in sidebranch ducts by interface modification, J. Sound Vib. 265 (2003), 1025–1045.CrossRefGoogle Scholar
Howe, M.S., Edge, cavity and aperture tones at very low Mach numbers, J. Fluid Mech. 330 (1997), 61–84.Google Scholar
White, R.M., Fluid Mechanics, (Boston: McGraw-Hill, 2008).Google Scholar
Fried, E. and Idel’chik, I.E., Flow Resistance: A Design Guide for Engineers, (Philadelphia: Taylor and Francis Ltd, 1989).Google Scholar
Payri, F., Torregrosa, A.J., Broatch, A. and Brunel, J-P., Pressure loss characterization of perforated ducts, International Congress and Exposition, Detroit, Michigan, (SAE Technical Paper Series 980282) (1998).Google Scholar
Dixit, D.K., Heat and Mass Transfer, (New Delhi: McGraw-Hill, 2016).Google Scholar
Cummings, A., Low frequency acoustic radiation from duct walls, J. Sound Vib. 71(2) (1980), 201–226Google Scholar
Cummings, A., Chang, I.-J. and Astley, R.J., Sound transmission at low frequencies through the walls of distorted circular ducts, J. Sound Vib. 97 (1984), 261–286.Google Scholar
Leissa, A.W., Vibration of shells, NASA SP-288, (1973).Google Scholar
Cummings, A., Design charts for low frequency acoustic transmission through the walls of rectangular ducts, J. Sound Vib. 78 (1981), 269–289.Google Scholar
Kuhn, G.F. and Morfey, C.L., Transmission of low frequency internal sound through pipe walls, J. Sound Vib. 47 (1976), 147–161Google Scholar
Yousri, S.N. and Fahy, F.J., Distorted cylindrical shell response to internal acoustic excitation below the cut-off frequency, J. Sound Vib. 52 (1977), 441–452.CrossRefGoogle Scholar
Cummings, A., Sound transmission through duct walls, J. Sound Vib. 239 (2001), 731–765.Google Scholar

Save book to Kindle

To save this book to your Kindle, first ensure no-reply@cambridge.org is added to your Approved Personal Document E-mail List under your Personal Document Settings on the Manage Your Content and Devices page of your Amazon account. Then enter the ‘name’ part of your Kindle email address below. Find out more about saving to your Kindle.

Note you can select to save to either the @free.kindle.com or @kindle.com variations. ‘@free.kindle.com’ emails are free but can only be saved to your device when it is connected to wi-fi. ‘@kindle.com’ emails can be delivered even when you are not connected to wi-fi, but note that service fees apply.

Find out more about the Kindle Personal Document Service.

Available formats
×

Save book to Dropbox

To save content items to your account, please confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account. Find out more about saving content to Dropbox.

Available formats
×

Save book to Google Drive

To save content items to your account, please confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account. Find out more about saving content to Google Drive.

Available formats
×