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Advancements in Liquid Damping Materials
ISSN: 0148-7191, e-ISSN: 2688-3627
Published June 15, 2015 by SAE International in United States
This content contains downloadable datasetsAnnotation ability available
Over the past decade damping materials have contributed major improvements to passenger comfort. Noise Vibration and Harshness (NVH) engineers have further shaped material specifications to reflect key targeted properties that improve vehicle design. The specified damping material is then applied to the formed surfaces of the vehicle body to provide optimal performance and achieve the required results. This paper describes how liquid dampers have advanced to meet increased performance requirements through improved loss modulus of the final coating. Data generated by dynamic mechanical analysis shows that this viscoelastic behavior is what drives the performance in damping materials. Through the correlation of loss moduli to damping performance of Oberst bars, the mechanism can be further quantified and explained. In addition to the increase in damping efficiency, liquid dampers continue to offer increased application flexibility to NVH engineers with improved resistance to blister formation when cured between 120 - 180 C°, increased tensile properties, and increased water resistance.
|Technical Paper||Light-weight Liquid-Applied Sound Damping Material for Automotive Industry|
|Technical Paper||Comparison of Asphalt Melt Sheets and LASD Materials for Structural Damping of a Passenger Vehicle|
CitationJackson, C., Gimbal, J., and Metla, D., "Advancements in Liquid Damping Materials," SAE Technical Paper 2015-01-2202, 2015, https://doi.org/10.4271/2015-01-2202.
Data Sets - Support Documents
|Unnamed Dataset 1|
- Samardzic , N. and Sergiyenko , S. The Impact of Damping Material Application Parameters on Damping Performance SAE Technical Paper 2007-01-2200 2007 10.4271/2007-01-2200
- da Silva , M. , Furukava , M. , Gerges , S. , Jordan , R. et al. Comparison of Asphalt Melt Sheets and LASD Materials for Structural Damping of a Passenger Vehicle SAE Technical Paper 2008-36-0391 2008 10.4271/2008-36-0391
- Hussaini , A. Designing an Interior Applied Waterborne Coating for Use in Automotive Paint Shops to Replace Sound Deadening Pads SAE Technical Paper 2000-01-1391 2000 10.4271/2000-01-1391
- Tsuruta , N. , Noguchi , Y. , and Suzuki , H. Development of a Light-Weight High-Dampening Liquid-Applied Sound Deadener Material SAE Technical Paper 2006-01-0508 2006 10.4271/2006-01-0508
- SAE International Surface Vehicle Recommended Practice Laboratory Measurement of the Composite Vibration Damping Properties of Materials on a Supporting Steel Bar SAE Standard J1637 Aug. 2007
- Corsaro , R. D. and Sperling , L. H. Sound and Vibration Damping with Polymers Washington D. C. ACS Symposium Series 424, American Chemical Society 1990 0-8412-1778-5
- Painter , P. C. and Coleman , M. M. Fundamentals of Polymer Science, 2nd Ed. CRC Press 1997 443 978-1-932078-75-6