Orclever Proceedings of Research and Development

Tire Cavity Noise Reduction by Using Helmholtz-Based Sandwich Resonator

Berk Özgür

Dokuz Eylül University

https://orcid.org/0009-0007-2042-9911

Mustafa Umut Karaoğlan

Dokuz Eylül University

https://orcid.org/0000-0002-3780-3451

Ümran Köse

Tofaş Türk Otomobil Fabrikası A.Ş.

https://orcid.org/0009-0001-2704-8296

DOI: https://doi.org/10.56038/oprd.v7i1.737

Keywords: Helmholtz resonator, sandwich resonator, cavity noise, tire–road noise

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Abstract

With the elimination of internal combustion engines in electric vehicles, noticeable changes have occurred in the in-cabin noise profile. The absence of engine noise has made road and tire-induced noises more prominent, leading to the emergence of passive acoustic issues such as cavity noise. Cavity noise is a distinct type of noise that negatively affects interior comfort, caused by the resonance of the enclosed air volume between the wheel and the tire.
In this study, tire-induced noise types are first classified in general terms, and then the physical basis of cavity noise is explained through the Helmholtz resonator model. Existing solutions in the literature are examined, and as an alternative, a modular and highly volume-efficient sandwich resonator design that can be integrated into all wheel types is proposed. This design differs from similar studies by maximizing the utilization of the gap volume between the wheel and the tire and being easily adaptable to different wheel geometries.

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