This content is not included in your SAE MOBILUS subscription, or you are not logged in.
Control of Airborne Road Noise Using Sealers
ISSN: 0148-7191, e-ISSN: 2688-3627
Published October 06, 2010 by SAE International in United States
Annotation ability available
Noise generated during tire/road interaction has significant impact on the acoustic comfort of a vehicle. One of the most common approaches to attenuate road noise levels consists on the addition of mass treatments to the vehicle panels. However, the acoustic performance of sealing elements is also relevant and has an important contribution to the noise transmission into the vehicle interior.
In this paper the correct balance between the mass added to treat vehicle panels and sealing content is investigated. The procedure to quantify the critical road noise transmission paths consists of recording interior noise levels as applied treatment is removed from potential weak areas, such as wheelhouses, floor, doors and body pillars. It is observed that the noise propagation through body pillars has a direct influence on road noise levels. In this case, the use of acoustic sealers placed in the body pillar sections can reduce noise transmission particularly at high frequencies leading to the achievement of desired vehicle acoustic comfort levels.
CitationRocha, T. and Calcada, M., "Control of Airborne Road Noise Using Sealers," SAE Technical Paper 2010-36-0458, 2010, https://doi.org/10.4271/2010-36-0458.
- Kuijpers, A. Blokland, V. G. Tyre/Road Noise Models in the Last Two Decades: A Critical Evaluation Internoise 2001
- El-Sebai, N.A. Watany, M. Saad, A. “Tire/Road Interface Airborne Noise Characteristics Generation,” SAE Technical Paper 1999-01-1731 10.4271/1999-01-1731
- Hartleip, L.G. Roggenkamp, T.J. “Case Study - Experimental Determination of Airborne and Structure-borne Road Noise Spectral Content on Passenger Vehicles,” SAE Technical Paper 2005-01-2522 2005 10.4271/2005-01-2522
- Koners, G. Lehmann, R. “Investigation of Tire Road Noise with Special Consideration of Airborne Noise Transmission,” SAE Technical Paper 2009-01-2109 10.4271./2009-01-2109