Effect of protective layer on the performance of absorptive ducts

Noise Control Engineering Journal

Volumn 45, Issue 1, 1997, Pages 14-18

  Munjal, M L ^a   Thawani, P T ^b  

^a INDIAN INSTITUTE OF SCIENCE   (India)

^b FORD MOTOR COMPANY   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

ACOUSTIC IMPEDANCE; ACOUSTIC VARIABLES CONTROL; EFFECTS; LININGS; MUFFLERS;

ABSORPTIVE DUCTS; ABSORPTIVE LINING; GRAZING FLOW; PARALLEL BAFFLE MUFFLERS; PROTECTIVE LAYER;

DUCTS;

EID: 0030835201     PISSN: 07362501     EISSN: None     Source Type: Journal    
DOI: 10.3397/1.2828422     Document Type: Article

References (10)

1. M. L. Munjal, Acoustics of Ducts and Mufflers (Wiley-Interscience, New York, 1987).
2. A. Cummings and I. J. Chang, "Sound attenuation of a finite length dissipative flow duct silencer with internal mean flow in the absorbent," J. Sound Vib. 127(1). 1-17 (1988).
3. D. A. Bies, C. H. Hanson, and G. E. Bridges, "Sound attenuation in rectangular and circular cross-section ducts with flow and bulk-reacting liner," J. Sound Vib. 146(1), 47-80 (1991).
4. R. Ramakrishnan and W. R. Watson, "Design curves for circular and annular duct silencers," Noise Control Eng. J. 36(3), 107-120 (1991).
5. C. H. Hansen, D. A. Bies, and T. Heiland, "A new model for sound propagation and attenuation in a lined duct with flow," Proc. INTER-NOISE 95, edited by Robert J. Bernhard and J. Stuart Bolton (Noise Control Foundation, Poughkeepsie, New York, 1995), pp. 347-352.
6. M. Watanabe, "Computer method for calculating eigen-values in acoustically lined circular ducts with uniform flow," Proc. INTER-NOISE 95, edited by Robert J. Bernhard and J. Stuart Bolton (Noise Control Foundation, Poughkeepsie, New York, 1995), pp. 367-370.
7. Y. Minkin and A. Gnesin, "Mathematical model of high pressure drop silencers with layered parallel baffles." Proc. INTER-NOISE 95, edited by Robert J. Bernhard and J. Stuart Bolton (Noise Control Foundation, Poughkeepsie, New York, 1995), pp. 465-468.
8. K. S. Peat and K. L. Rathi, "A finite element analysis of the convected acoustic wave motion in dissipative silencers," J. Sound Vib. 184(3), 529-545 (1995).
9. M. E. Delaney and E. N. Bazley, "Acoustical properties of fibrous absorbent materials," Appl. Acoust. 3, 105-116 (1970).
10. K. N. Rao and M. L. Munjal, "Experimental evaluation of impedance of perforates with grazing flow," J. Sound Vib. 108(2), 283-295 (1986).