Comparison of Noise Attenuation Level by Convergent and Divergent Cylindrical Duct with Space Constraints

Authors

  • Amit Kumar Gupta  Mechanical Engineering Department, IET-Devi Ahilya University, Indore, Madhya Pradesh, India

Keywords:

Transmission Loss (TL), Transfer Matrix Method (TMM), Wave 1-D.

Abstract

This paper shows the details of comparison of noise attenuation level by convergent and divergent cylindrical duct with space constraints by using Transmission loss parameter. Reactive muffler is noise reduction element on exhaust system. Two basic term is used for noise attenuation first is transmission loss (TL) and other is insertion loss (IL). The main aim of this paper is to use of TMM, FEA (Wave 1-D & Comsol) as well experimental method (two load method) for muffler’s TL measurement for central inlet and side outlet position. Afterword to achieve by proven results analysis is done for convergent and divergent cylindrical duct. Also FEA based tool Comsol Multiphysics and Wave 1-D is used to validate and comparing the results. FEA tool is used for virtual prototyping which has already validated with various case studies. Also by comparing the experimental results by fabricated muffler with FEA results for central inlet and central outlet shows the validation of results. So the optimization can be achieved by using FEA tool by using virtual protyping.

References

  1. M. L. Munjal , “Recent Advances in Muffler Acoustics”, International Journal of Acoustics and Vibration, Vol. 18, No. 2, pp. 71-85,2013.
  2. R. Barbieri and N.Barbieri, “Finite element acoustic simulation based shape optimization of a muffler”, applied acoustics, Volume 67, Issue 4, pp 346–357 , 2006.
  3. L.J.Yeh, “Computer-aided optimal design of a single-chamber muffler with side inlet/outlet under space constraints”, Journal of Marine Science and Technology, Vol. 11, Issue 4, pp. 189-196, 2003.
  4. A.K. Gupta and A. Tiwari “Comparison of Existing Experimental Results with Different Types of Simulation Software for Transmission Loss Estimation of Muffler”, March 2015, Volume 2, Issue 1,Trends in Machine Design, pp 17-20, 2015.
  5. Amit Kumar Gupta, Dr. Ashesh Tiwari  “Modeling For Transmission Loss Prediction Of Different Shapes Of Acoustic Muffler With An Experimental Analysis ʺ Journal Of Experimental & Applied Mechanics, Vol 6, No 1 (2015).
  6. Amit Kumar Gupta, Dr. Ashesh Tiwari  “Comparison of Existing Experimental Results with Different Types of Simulation Software for Transmission Loss Estimation of Muffler”, March 2015(Pp 17-20),Volume 2, Issue 1,Trends in Machine Design, March 2015.
  7. Chu Zhigang, Kuang Fang, Gao Xiaoxin, Kang Runcheng “Effects of outlet pipe transition circular arc on properties of reactive muffler and its application”, Transactions of the Chinese Society of Agricultural Engineering Vol.31 ,No.6, Mar. 2015.
  8. Lima K., Arcanjo Lenzi, Renato Barbieri, “The study of reactive silencers by shape and parametric optimization techniques”, Applied Acoustics, pp 142-150, (2011).

International Journal of Scientific Research in Science, Engineering and Technology

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Published

2017-12-31

Issue

Volume 2, Issue 2, March-April-2016

Section

Research Articles

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Copyright (c) IJSRSET

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This work is licensed under a Creative Commons Attribution 4.0 International License.

How to Cite

[1]
Amit Kumar Gupta, " Comparison of Noise Attenuation Level by Convergent and Divergent Cylindrical Duct with Space Constraints, International Journal of Scientific Research in Science, Engineering and Technology(IJSRSET), Print ISSN : 2395-1990, Online ISSN : 2394-4099, Volume 2, Issue 2, pp.778-781, March-April-2016.