This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Vehicle Interior Noise Reduction Using Innovative Roof Trim Structure
Technical Paper
2014-36-0767
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
It is known acoustic comfort is a key feature to meet customer expectations for many products. In the current automotive industry, vehicle interior quietness is seen as one of the most important product attributes regarding perceived quality. A quiet interior can be achieved through an appropriate balance of noise sources levels and acoustic materials. However, the choice of the most efficient acoustic content may be challenging under severe cost and mass restraints commonly found in emerging market vehicles. Therefore, it is fundamental to develop efficient materials which will provide high acoustic performance with lower weight and cost. In this paper the fine tuning of the headliner structure is presented as an efficient way to increase acoustic performance. Structures currently employed for this vehicle subsystem are described. Airflow resistance and sound absorption measurements are used to guide development and make precise manufacturing process changes. It is shown that the new headliner structure, which is a low cost and lightweight solution, can strongly contribute to interior noise reduction.
Recommended Content
Authors
Citation
da Silva, C., Calçada, M., and Massarelli, L., "Vehicle Interior Noise Reduction Using Innovative Roof Trim Structure," SAE Technical Paper 2014-36-0767, 2014, https://doi.org/10.4271/2014-36-0767.Also In
References
- Wyerman , B. R. and Reed , D. B. The Role of a Fiber Decoupler on the Acoustical Performance of Automotive Floor Systems SAE Technical Paper 2007-01-2185 2007 10.4271/2007-01-2185
- Balte , R. and Choe , J. Investigation and Benchmarking for Vehicle Floor Coverings SAE Technical Paper 2003-01-1575 2003 10.4271/2003-01-1575
- McMullan , A. and Mealman , M. An Investigation of Automotive Seat Fabric Sound Absorption SAE Technical Paper 2001-01-145 2001 10.4271/2001-01-1454
- Jain , S. K. , Joshi , M. P. , Shravage , P. G. , Yadav , P. S. et al. Evaluation of Acoustic Performance of Automotive Seats by Experimental and Simulation Techniques SAE Technical Paper 2013-26-0105 2013 10.4271/2013-26-0105
- Davies , B. A. Current and Past Technologies for Headliners Including Acoustics, Recycling and Safety SAE Technical Paper 980951 1998 10.4271/980951
- Aggarwal , A. , Khan , H. and Crepeau , H. New Headliner Composites with Improved Acoustical Performance SAE Technical Paper 980946 1998 10.4271/980946
- Pikula , D. G. , Kocsis , M. J. and Brandon , R. H. Acoustical Evaluation of Automotive Headliner Composites with Various Adhesive Systems SAE Technical Paper 920501 1992 10.4271/920501
- ISO 9053 Acoustics - Materials for acoustical applications - Determination of airflow resistance 1991
- Rayleigh , J. W. S. The theory of sound Dover publications N. Y. 1896
- Zwikker , C. and Kosten , C. W. Sound Absorption Materials Elsevier N. Y. 1949
- Biot , M. A. Generalized theory of acoustic propagation in porous dissipative media Journal of the Acoustical Society of America 34 5 1254 1264 1962
- Allard , J. F. Propagation of Sound in Porous Media - Modelling sound absorbing materials Elsevier Applied Science N. Y. 1993
- Delany , M. E. and Bazley , E. N. Acoustical properties of fibrous absorbent materials Applied Acoustics 3 2 105 116 1970
- Zent , A. and Long , J. T. Automotive Sound Absorbing Material Survey Results SAE Technical Paper 2007-01-2186 2007 10.4271/2007-01-2186
- Bolton , J. S. , Shiau , N. M. and Kang , Y. J. Sound transmission through multi-panel structures lined with elastic porous materials Journal of Sound and Vibration 191 317 347 1996
- ISO 10534-2 Acoustics - Determination of sound absorption coefficient and impedance in impedance tubes - Part 2: Transfer-function method 1998
- ISO 354 Acoustics - Measurement of sound absorption in a reverberation room 2003