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Investigation of air-borne noise generation mechanisms in tire noise

Gautam, Prashanta
http://rave.ohiolink.edu/etdc/view?acc_num=akron148552634330808

Abstract Details

2017, Master of Science in Engineering, University of Akron, Mechanical Engineering.
The complex nature of tire/road noise generation process makes it difficult to isolate and study individual mechanisms. In this thesis, a new computational fluid dynamics (CFD) tire noise prediction model is used to predict the air-borne tire noise. The different factors needed to be considered in the development of the CFD model, such as vehicle speed, deformation and load, have been discussed in detail through various analysis stages. Experimentally, the noise data is collected and studied for a tire with hand-cut slots. Air-borne noise is isolated by filling the slots with foam and different approaches are used to investigate the experimental data and reach a conclusion regarding the different air-borne noise frequencies that exist in the data. A direct comparison between the experimental and computational results is made, in terms of temporal and spectral characteristics. The comparison shows that the computational model is capable of predicting the frequencies responsible for noise generation mechanisms such as air-pumping, pipe resonance as well as Helmholtz resonance. Further analysis of the numerical results also aim to provide some explanation on the origin of the air-borne noise in the tire studied. While providing a deeper understanding of the causes of air-borne noise in tires, this thesis also aims to demonstrate that CFD can be used to predict tire noise effectively, through the proposed model.
Abhilash Chandy, Dr. (Advisor)
Alex Povitsky, Dr. (Committee Member)
Xiaosheng Gao, Dr. (Committee Member)
169 p.
Acoustics; Engineering; Mechanical Engineering; Transportation
Tire noise; Air-pumping; Computational Fluid Dynamics; CFD; Aero-acoustics; NVH

Recommended Citations

Citations

  • Gautam, P. (2017). Investigation of air-borne noise generation mechanisms in tire noise [Master's thesis, University of Akron]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=akron148552634330808

    APA Style (7th edition)

  • Gautam, Prashanta. Investigation of air-borne noise generation mechanisms in tire noise. 2017. University of Akron, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=akron148552634330808.

    MLA Style (8th edition)

  • Gautam, Prashanta. "Investigation of air-borne noise generation mechanisms in tire noise." Master's thesis, University of Akron, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=akron148552634330808

    Chicago Manual of Style (17th edition)

akron148552634330808
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© 2017, all rights reserved.
This open access ETD is published by University of Akron and OhioLINK.