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Hybrid Laminated Panels Addressing Acoustic Issues in Vehicles
ISSN: 0148-7191, e-ISSN: 2688-3627
Published August 31, 2021 by SAE International in United States
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Laminated steel body panels are used in different applications in vehicles, such as dash panels and wheel wells. A part made out of laminated steel has the potential to provide structure-borne noise reduction and also improve the airborne noise reduction of the part compared to a monolithic part. The use of laminated steel has been more critical when there are deep draws on the part as the deep draws cause localized resonances which degrade the acoustic performance significantly. However, due to lightweighting demands, hybrid laminated panels, commonly known as acoustic patch laminates have become very attractive. This paper discusses the damping and sound transmission loss performances of a dash panel part with monolithic, laminated, and acoustic patch panels. The paper discusses the damping performance below 1000 Hz, including the data analysis process and the effectiveness of the acoustic patch laminates for both structure borne and airborne noise studies including coincidence dip issues. Finally, the paper discusses the potential of the acoustic patch laminates to address lightweighting demands and acoustic values that are driving the vehicle industry today.
CitationSaha, P., Patil*, S., Figueroa**, A., and Telenko, M., "Hybrid Laminated Panels Addressing Acoustic Issues in Vehicles," SAE Technical Paper 2021-01-1086, 2021, https://doi.org/10.4271/2021-01-1086.
Data Sets - Support Documents
|Unnamed Dataset 1|
- Saha , P. , and Chahine , J.
- Johansson , B.R. Laminated Steel for Car Body Panels - A Lightweight Noise Control Method Presented at the IMechE Conference 1984
- Huckins , D. , Jackson , P. , and Shedlowsky , J. The History of Laminated Steel SAE Technical Paper 209-01-1578 2019 https://doi.org/10.4271/2019-01-1578
- Owen , D. , Fisk , J. , Saha , P. , and Deshpande , S. Comparison of Constrained Layer Damping on Steel and Aluminum using Sound Intensity and Particle Velocity Probes Societe Des Ingenieurs de L’Automobile, INTERNATIONAL CONGRESS: Automotive NVH comfort LeMans, France October 22-23, 2014
- Saha , P. , Patil , S.S. , Figueroa , A. , and Telenko , M.K. 2020
- Saha , P. , Deshpande , S. , Fisk , J. , and Owen , D. Damping Performance Using a Panel Structure SAE Technical Paper 2013-01-1938 2013 https://doi.org/10.4271/2013-01-1938