Finite element computation of attenuation in bar-silencers and comparison with measured data

Journal of Sound and Vibration

Volumn 196, Issue 3, 1996, Pages 351-369

  Cummings, A ^a   Astley, R J ^b  

^a UNIVERSITY OF HULL   (United Kingdom)

^b UNIVERSITY OF CANTERBURY   (New Zealand)

Author keywords

[No Author keywords available]

Indexed keywords

AIR CONDITIONING DUCTS; ATTENUATION; FINITE ELEMENT METHOD; MATHEMATICAL MODELS; NATURAL FREQUENCIES;

BAR SILENCERS; RIGID WALLED DUCT; SILENCER AIRWAY; SOUND ATTENUATION; SPLITTER SILENCERS; UNIFORM MEAN GAS FLOW;

ACOUSTIC WAVE ABSORPTION;

EID: 0042540350     PISSN: 0022460X     EISSN: None     Source Type: Journal    
DOI: 10.1006/jsvi.1996.0488     Document Type: Article

References (10)

1. N.-Å. NILSSON and S. SöDERQVIST 1983 Proceedings of Inter-Noise 83, 1-4. The bar silencer - improving attenuation by constricted two-dimensional wave propagation.
2. R. J. ASTLEY and A. CUMMINGS 1987 Journal of Sound and Vibration 116, 239-263. A finite element scheme for attenuation in ducts lined with porous material: comparison with experiment.
3. C. WASSILIEFF 1987 Journal of Sound and Vibration 114, 239-251. Experimental verification of duct attenuation models with bulk reacting linings.
4. M. E. DELANY and E. N. BAZLEY 1970 Applied Acoustics 3, 105-116. Acoustical properties of fibrous absorbent materials.
5. F. P. MECHEL 1988 Journal of the Acoustical Society of America 83, 1002-1013. Design charts for sound absorber layers.
6. O. C. ZIENKIEWICZ and R. L. TAYLOR 1989 The Finite Element Method, Volume 1, Basic Formulation and Linear Problems. London: McGraw-Hill; fourth edition. See Chapter 7.
7. International Standard ISO 7235 1991 Acoustics - measurement procedures for ducted silencers - insertion loss, flow noise and total pressure loss.
8. A. CUMMINGS 1992 Proceedings of the Second International Conference on Recent Developments in Air-and Structure-borne Sound and Vibration, Auburn University, Auburn, AL, U.S.A. 689-696. Sound absorbing ducts.
9. F. P. MECHEL 1990 Acustica 70, 93-111. Theory of baffle-type silencers.
10. F. P. MECHEL 1990 Acustica 72, 7-20. Numerical results to the theory of baffle-type silencers.