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Development of a Lightweight Soundproof Cover Using the Biot Theory (Vibration Propagation in Elastic Porous Materials), and an Example Application to a Transmission
Technical Paper
2016-01-0517
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
To reduce cabin noise and vehicle weight (for lower fuel consumption), a lightweight soundproofing cover was developed as a countermeasure to sources of noise, using the Biot theory (vibration propagation theory in poroelastic materials). This report also presents the results of its application to a metal belt-type continuously variable transmission (CVT) used in Toyota Motor Corporation’s 2.0L vehicles.
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Citation
Kimura, K., Habuchi, R., Kono, T., Mori, T. et al., "Development of a Lightweight Soundproof Cover Using the Biot Theory (Vibration Propagation in Elastic Porous Materials), and an Example Application to a Transmission," SAE Technical Paper 2016-01-0517, 2016, https://doi.org/10.4271/2016-01-0517.Also In
References
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- Allard J.F. Propagation of Sound in Porous Media。 Elsevier Applied Science England 1993
- Brouard B. , Lafarge D. and Allard J.F. A General method of modeling sound propagation in layered media J. Sound Vib 183 7 12 2004
- Guofeng Bai , Pei Zhan , Fusheng Sui , Jun Yang Research on sound insulation of multiple-layer structure with porous material and air-layer Inter-noise2014 2014