Correlation Analysis of Car Exterior and Interior Noise Tests under Different Yaw Angles with Beamforming
Wenyu Jia, Tao Zhang, Guoxu Dong, Bin Wang, Yinzhi He
Available Online March 2017.
- https://doi.org/10.2991/ifmca-16.2017.80How to use a DOI?
- Beamforming; Correlation analysis; Yaw angle; Wind tunnel.
- To identify vehicle wind noise sources in aeroacoustic wind tunnel, Beamforming technique is widely used today. In this study, a production car Roewe 350 was set on the turntable at 1:1 aeroacoustic wind tunnel of Shanghai Automotive Wind Tunnel Center (SAWTC), a planar spiral microphone array with 120 channels (1.8m*1.8m) was set out-of-flow to test its exterior wind noise sources. In interior of the vehicle near the left side view mirror triangle and driver's ear position, 2 reference microphones were set to record potential sound source signal. The results demonstrate that Beamforming technique is a practical method for sound source identification. Furthermore, correlation analysis makes it clear, that side view mirror contributes most to vehicle interior noise. Under different yaw angles, exterior noise sources distribution is different, so is the correlation result.
- Open Access
- This is an open access article distributed under the CC BY-NC license.
Cite this article
TY - CONF AU - Wenyu Jia AU - Tao Zhang AU - Guoxu Dong AU - Bin Wang AU - Yinzhi He PY - 2017/03 DA - 2017/03 TI - Correlation Analysis of Car Exterior and Interior Noise Tests under Different Yaw Angles with Beamforming BT - Proceedings of the 2016 International Forum on Mechanical, Control and Automation (IFMCA 2016) PB - Atlantis Press SP - 527 EP - 531 SN - 2352-5401 UR - https://doi.org/10.2991/ifmca-16.2017.80 DO - https://doi.org/10.2991/ifmca-16.2017.80 ID - Jia2017/03 ER -