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Modelling of a lined tyre for predicting cavity noise mitigation
Politecn Milan, Dept Mech Engn, Milan, Italy..
Politecn Milan, Dept Mech Engn, Milan, Italy..
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering.ORCID iD: 0000-0001-7898-8643
Pirelli Tyre, Milan, Italy..
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2019 (English)In: Applied Acoustics, ISSN 0003-682X, E-ISSN 1872-910X, Vol. 155, p. 391-400Article in journal (Refereed) Published
Abstract [en]

Tyre cavity resonance can significantly affect vehicle interior noise at frequencies around 200 Hz. The insertion of a sound absorbing liner inside the tyre is known to be an efficient countermeasure, in fact nowadays tyre manufacturers are already producing tyres implementing this kind of solution. The present work, through analytical and numerical models, supported by material testing, provides a methodology for predicting the dag performance of a lined tyre, taking into account tyre/lining geometry and sound absorbing material properties. The results reported in the paper show that for fixed material characteristics, the attenuation of the cavity resonance is mostly influenced by the volume of the lining treatment. Moreover, the numerical model developed for discontinuous treatments, suggests that for fixed volume and material properties, the cavity resonance attenuation can be increased by choosing a proper layout. Elsevier Ltd. All rights reserved.

Place, publisher, year, edition, pages
ELSEVIER SCI LTD , 2019. Vol. 155, p. 391-400
Keywords [en]
Cavity resonance, Tyre, Sound absorbing material, Predictive modelling
National Category
Fluid Mechanics and Acoustics
Research subject
Engineering Mechanics
Identifiers
URN: urn:nbn:se:kth:diva-260981DOI: 10.1016/j.apacoust.2019.05.033ISI: 000485209600037Scopus ID: 2-s2.0-85067593295OAI: oai:DiVA.org:kth-260981DiVA, id: diva2:1359592
Note

QC 20191009

Available from: 2019-10-09 Created: 2019-10-09 Last updated: 2019-12-03Bibliographically approved

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Åbom, Mats

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