Noise Attenuation by Helmholtz Resonators Attached to a Duct

Mahmud, Md. Amin; Sameen, Zahin

IUT Repository Home
→
Mechanical and Production Engineering (MPE)
→
Thesis
→
Undergraduate
→
2014
→
View Item

dc.contributor.author	Mahmud, Md. Amin
dc.contributor.author	Sameen, Zahin
dc.date.accessioned	2021-09-17T06:24:00Z
dc.date.available	2021-09-17T06:24:00Z
dc.date.issued	2014-11-15
dc.identifier.citation	[1] Rayleigh JWS. The theory of sound 2nd revised and enlarged. 1945, New York Dover; [2] Ingard, U., On the theory and design of acoustic resonators,’’ 1953, Journal of Acoustical Society of America 25, 1037–1061. [3] Alster M. Improved calculation of resonant frequencies of Helmholtz resonators.1972, Journal of Sound and Vibration;24:63–85. [4] Panton RL, Miller JM. Resonant frequencies of cylindrical Helmholtz resonators.1975,Journal of the Acoustical Society of America;57:1533–5. [5] Selamet A, Dickey NS, Novak JM. The Herschel-Quincke tube: a theoretical, computational, and experimental investigation. 1994,Journal of Acoustical Society of America;96:3177–85 [6] Selamet A, Dickey NS, Novak JM. A theoretical, computational, and experimental investigation of Helmholtz resonators with fixed volume: lumped versus distributed analysis. 1995,Journal of Sound and Vibration;187:358–67. [7] Selamet A, Radavich PM, Dickey NS, Novak JM. Circular concentric Helmholtz resonators. 1997,Journal of Acoustical Society of America;101:41–51. [8] SelametA, Ji ZL. Circular asymmetric Helmholtz resonators. 2000, Journal of the Acoustical Society of America;107:2360–9. [9] Soh, Y. P., Yap, E. W. T., Gan, B. H. L., ‘Industrial Resonator Muffler Design,’ http://www.mecheng.adelaide.edu.au/Courses/Projects/level4papers2001/soh_yap_gan.pdf. [10] Griffin S, Lane SA, Huybrechts S. Coupled Helmholtz resonators for acoustic attenuation. 2001,Journal of Sound and Vibration;123:11–7. [11] Li, D. Vibroacousticbehaviour and noise control studies of advanced composite structures. 2003,PhD thesis, University of Pittsburgh. 61 [12] Selamet A, Lee I-JOURNAL Helmholtz resonator with extended neck. 2003, Journal of the Acoustical Society of America;113:1975–85. [13] Selamet A, Xu MB, Lee I-J, Huff NT. Helmholtz resonator lined with absorbing material. 2005, Journal of the Acoustical Society of America;117:725–33. [14] Tang SK. On Helmholtz resonators with tapered necks. 2005,Journal of Sound and Vibration;279:1085–96. [15] Xu M.B., Selamet A., Kim H., Dual Helmholtz resonator, 2010,Applied Acoustics, Volume 71, Issue 9, September, Pages 822-829 [16] Farooqui, M. 2012. ‘Noise reduction in centrifugal compressors using Helmholtz resonators'. Masters-thesis, KING FAHAD UNIVERSITY OF PETROLEUM AND MINERALS, SOUDI ARABIA. [17] Mekid, S., &Farooqui, M. 2012. ‘Design of Helmholtz resonators in one and two degrees of freedom for noise attenuation in pipelines’. Acoustics Australia, Vol. 40(3). [18] The Fletcher-Munson curves, www.wikipedia.com	en_US
dc.identifier.uri	http://hdl.handle.net/123456789/1022
dc.description	Supervised by Prof. Dr. MD. Zahid Hossain, Co-Supervisor, Md. Shahriar Islam, Lecturer, Department of Mechanical and Chemical Engineering (MCE), Islamic University of Technology, (IUT), Board Bazar, Gazipur-1704, Bangladesh.	en_US
dc.description.abstract	The resonating frequency and the transmission loss due to two 1-DOF cylindrical Helmholtz resonator attached to a duct is thoroughly investigated in this literature to attenuate low frequency noise using finite element method. Primarily, the relative spacing between the two identical resonators attached to a duct is investigated in this study to find the optimum positions between the resonators. The investigation is further carried out by changing the dimensions of the cavity and neck for the optimum relative position .Finally, based on these several investigations, a conclusion is drawn for an optimized system of two identical 1-DOF Helmholtz resonators in terms of position, orientation and geometry. The results shows a significant improvement in noise reduction compared to a single 1-DOF Helmholtz resonator .The results of a single 1-DOF Helmholtz resonator of a published literature were also validated both analytically and numerically in this study.	en_US
dc.language.iso	en	en_US
dc.publisher	Department of Mechanical and Production Engineering (MPE),Islamic University of Technology(IUT), Board Bazar, Gazipur, Bangladesh	en_US
dc.title	Noise Attenuation by Helmholtz Resonators Attached to a Duct	en_US
dc.type	Thesis	en_US