Paper Title:
An Experimental Investigation of Automobile Interior Wind Noise Using a Production Vehicle
  Abstract

Based on the analysis of automobile aerodynamic noise generation mechanisms and the components of interior wind noise, the spectra characteristics and spatial distribution rule of sound level of interior wind noise were investigated at first, then the frequency characteristics and noise level under different wind speeds, different yaw angles in SAWTC full-scale aeroacoustic wind tunnel were studied. The results show that: the interior noise level was nearly symmetric on vehicle left and right side, noise level of outboard ear was normally higher than that of inboard ear. The frequency characteristics under different wind speeds were almost the same, the linear OASPL of interior noise increased at about 4.4th power and A-weighted OASPL at about 5.5th power of wind speed. In addition, the acoustic power increased as yaw angle rose up, and noise level by leeward side was normally higher than that by windward under the same yaw angle.

  Info
Periodical
Chapter
Chapter 8: Measurement
Edited by
Paul P. Lin and Chunliang Zhang
Pages
1860-1866
DOI
10.4028/www.scientific.net/AMM.105-107.1860
Citation
Y. Z. He, Z. G. Yang, Y. G. Wang, "An Experimental Investigation of Automobile Interior Wind Noise Using a Production Vehicle", Applied Mechanics and Materials, Vols. 105-107, pp. 1860-1866, 2012
Online since
September 2011
Export
Price
$32.00
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