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Design and Optimization of a Muffler Integrated with an Adaptive Quarter Wave Tube for Noise Reduction in Commercial Vehicles
Technical Paper
2020-01-0507
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
With rising concerns on internal combustion engine noise levels in commercial vehicles, it is necessary to attenuate noises present in specific frequency bands. This can be achieved with the implementation of a quarter wave tube on the present exhaust system. Historically such passive attenuators have been efficient only at specific engine speeds and exhaust gas temperatures. A new folded adaptive quarter wave tube design is proposed here which can give significant noise attenuation at various engine operating conditions. The proposed design eliminates the requirement of complex electronic actuating mechanisms for the adaptive quarter wave tubes and replaces the same by perforated diaphragms and adjustable end plates, which are more robust and effective. The module can replace the turbo S-flow single chambered muffler which is installed on most of the commercial vehicles. A design is conceptualized and developed using CAD tools. The performances for various combinations of quarter wave tube and muffler lengths are compared using analytical solutions and Finite Element Analysis/CFD. A comparative study on the transmission losses achieved by the current muffler design and the proposed design is also carried out. After comparison of the results, an optimum design for an integrated muffler system is proposed.
Citation
Cherkkil, A. and Rathor, A., "Design and Optimization of a Muffler Integrated with an Adaptive Quarter Wave Tube for Noise Reduction in Commercial Vehicles," SAE Technical Paper 2020-01-0507, 2020, https://doi.org/10.4271/2020-01-0507.Data Sets - Support Documents
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References
- Craig , R. and Howard , C. Development of an Adaptive Quarter-Wave Tube Attached to a Large Diesel Engine Proc ACOUSTICS 2012 21 23
- Howard , C.Q. and Craig , R.A. Noise Reduction Using a Quarter Wave Tube with Different Orifice Geometries Applied Acoustics 76 180 186 2014
- Wu , C. , Chen , L. , Ni , J. , and Jing , X. Modeling and Experimental Verification of a New Muffler Based on the Theory of Quarter-Wavelength Tube and the Helmholtz Muffler SpringerPlus 5 1 1366 2016
- Cummings , A. Sound Transmission in a Folded Annular Duct Journal of Sound Vibration 41 375 379 1975
- Glav , R. , Regaud , P.-L. , and Åbom , M. Study of a Folded Resonator Including the Effects of Higher Order Modes Journal of Sound and Vibration 273 4-5 777 792 2004
- Hwang , Y.-H. , Lee , J.-M. , and Kim , S.-J. New Active Muffler System Utilizing Destructive Interference by Difference of Transmission Paths Transactions of the Korean Society for Noise and Vibration Engineering 12 5 374 379 2002
- Chen , S.R. and Too , G.-P.J. Simulations and Experiments for Hybrid Noise Control Systems Applied Acoustics 70 2 247 255 2009
- Kostek , T.M. and Franchek , M.A. Hybrid Noise Control in Ducts Journal of Sound and Vibration 237 1 81 100 2000
- Šteblaj , P. , Čudina , M. , Lipar , P. , and Prezelj , J. Adaptive Muffler Based on Controlled Flow Valves The Journal of the Acoustical Society of America 137 6 EL503 EL509 2015
- Pal , S. , Golan , T.S. , Kumar , V. , Jain , V. et al. Design of a Muffler & Effect of Resonator Length for 3 Cylinder SI Engine IOSR J. Mech. Civil Eng 11 3 85 91 2014
- Reşitoğlu , İ.A. , Altinişik , K. , and Keskin , A. The Pollutant Emissions from Diesel-Engine Vehicles and Exhaust Aftertreatment Systems Clean Technologies and Environmental Policy 17 1 15 27 2015
- Munjal , M.L. Acoustics of Ducts and Mufflers with Application to Exhaust and Ventilation System Design John Wiley & Sons 1987
- Middelberg , J.M. , Barber , T.J. , Leong , S.S. , Byrne , K.P. , and Leonardi , E. CFD Analysis of the Acoustic and Mean Flow Performance of Simple Expansion Chamber Mufflers ASME 2004 International Mechanical Engineering Congress and Exposition 2004 151 156