Car's Materials Acoustic Properties Test and Analysis

Abstract:

With the development of the car industry, the pace of the urban construction is accelerating as well. Cars have gradually entered the ordinary family. As the car noise has a big effect on the health of the passengers, as well as on the surroundings, one of the car industry key duties is the car noise reduction. By researching the materials applied to car, this article describe that PU material could reduce the impact of the engine noise on the cab efficiently; Polypropylene needle-spun felt could reduce the noise passed by chassis; PET material's sound absorption is poor in mid bass, however in high frequency it's sound absorption is good; sound absorbing sponge can reduce the low and high frequency noise; The combine sponge can reduce the noise from the tire and transmission system ; Cotton material could absorb the high frequency noise.

• Periodical: Advanced Materials Research (Volumes 785-786)
• Pages: 1244-1247
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.785-786.1244
• Online since: September 2013
• Authors: Yan Liu*, Xiao Juan Zhang, Zong Cai Liu
• Keywords: Acoustic Properties, Car Material, Noise Testing

References

[1] Na Yang, Analysis and Research on transfer path of vehicle interior noise [D]. Hebei industrial university master degree thesis, (2004), 3.

[2] Jian Pang, Automobile noise and vibration: theory and application [M]. Beijing: Beijing Institute of Technology Press, (2006).

[3] E Zwicker and H. Fast. l Psychoacoustics Facts and Models [J]. Springer, (1999).

[4] Hong Zonghui, The Engineering of Environmental Noise Control. (Higher Education Press. 2002 ).