Normally, small differences in day-to-day and laboratory-to-laboratory sound absorption measurements do not have large consequences because most noise control applications are not highly sensitive to small changes in sound absorption. However, in the automotive industry, materials are not purchased unless they meet strict sound absorption targets. As a result, decisions worth millions of U.S. dollars are made based on acoustic measurements. As material sound absorption moves closer to target values, the consequences of small measurement variations, such as those which might be caused by changes in ambient temperature and humidity during the course of a test, become more critical. The purpose of the work presented in this paper is to investigate which materials used for vehicle sound absorption are sensitive to temperature and humidity. Measurements are made using an impedance tube. It is discovered that typical materials used as absorbers in automotive applications are not sensitive to small temperature changes, and only a few materials are sensitive to changes in humidity.
Skip Nav Destination
ASME 2008 Noise Control and Acoustics Division Conference
July 28–30, 2008
Dearborn, Michigan, USA
Conference Sponsors:
- Noise Control and Acoustics Division
ISBN:
0-7918-4839-6
PROCEEDINGS PAPER
Effects of Temperature and Humidity on the Sound Absorption of Automotive Sound Absorbing Materials
Edward R. Green,
Edward R. Green
Roush Industries, Inc., Livonia, MI
Search for other works by this author on:
Andrea L. Zent
Andrea L. Zent
Roush Industries, Inc., Livonia, MI
Search for other works by this author on:
Edward R. Green
Roush Industries, Inc., Livonia, MI
Andrea L. Zent
Roush Industries, Inc., Livonia, MI
Paper No:
NCAD2008-73025, pp. 195-200; 6 pages
Published Online:
June 22, 2009
Citation
Green, ER, & Zent, AL. "Effects of Temperature and Humidity on the Sound Absorption of Automotive Sound Absorbing Materials." Proceedings of the ASME 2008 Noise Control and Acoustics Division Conference. ASME 2008 Noise Control and Acoustics Division Conference. Dearborn, Michigan, USA. July 28–30, 2008. pp. 195-200. ASME. https://doi.org/10.1115/NCAD2008-73025
Download citation file:
8
Views
Related Proceedings Papers
Related Articles
Considerations for the Reduction of Noise in Ship Installations of Gas Turbines
J. Eng. Power (July,1960)
Nonlinear Behavior of Helmholtz Resonator With a Compliant Wall for Low-Frequency, Broadband Noise Control
J. Vib. Acoust (June,2022)
Investigation of a Compound Perforated Panel Absorber With Backing Cavities Partially Filled With Polymer Materials
J. Vib. Acoust (August,2015)
Related Chapters
Cut Edge Behavior
New Advanced High Strength Steels: Optimizing Properties
Advances in Materials and Measurement Methods for Interior Building Noise Control
Advances in Gypsum Technologies and Building Systems
On the Evaluation of Thermal and Mechanical Factors in Low-Speed Sliding
Tribology of Mechanical Systems: A Guide to Present and Future Technologies