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In a vehicle, the mechanism of wind noise generated by front automotive characteristics is analyzed by theoretical analysis and wind tunnel test. Then, the contribution of nose sharp features to wind noise and its domain frequency band are investigated. After optimizing the shape at front automotive characteristics, the flow field around vehicle body and the spectrum in the cabin are investigated. The results show that the sharp corner at the vehicle head will lead to the serious separation of the front airflow, which seriously disturb the airflow around the mirror and A-pillar region. It will, thus, enhance the wind-noise amplitude from the vehicle head region to the mirror region. In other words, the wind-noise amplitude in the spectrum is obvious deterioration below 1000 Hz. Compared with the basic scheme, the articulation index in the driver’s head region is reduced about 1.97%, the sound pressure level is increased by 2.43 dB.

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Investigation on the Influence of Front Automotive Characteristics on Wind Noise

  • 会议论文

  • 发表日期：

    2026年

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  • Wang Peng,
  • Yan Xu,
  • Zan Jianming,
  • Zhao Zhiming,
  • Lu Jianli,
  • Hu Xuefeng,
  • Liu Shiyuan,
  • Cao Sishi

摘要

In a vehicle, the mechanism of wind noise generated by front automotive characteristics is analyzed by theoretical analysis and wind tunnel test. Then, the contribution of nose sharp features to wind noise and its domain frequency band are investigated. After optimizing the shape at front automotive characteristics, the flow field around vehicle body and the spectrum in the cabin are investigated. The results show that the sharp corner at the vehicle head will lead to the serious separation of the front airflow, which seriously disturb the airflow around the mirror and A-pillar region. It will, thus, enhance the wind-noise amplitude from the vehicle head region to the mirror region. In other words, the wind-noise amplitude in the spectrum is obvious deterioration below 1000 Hz. Compared with the basic scheme, the articulation index in the driver’s head region is reduced about 1.97%, the sound pressure level is increased by 2.43 dB.