Abstract Both the hydrodynamic and acoustic pressure on automotive front side window have the potential contribution to the interior sound pressure of the vehicle. The corrected force analysis technique (CFAT) is employed to extract the acoustic pressure on front side window. The sensitivity of all pressure fluctuation inside and outside the vehicle to the variation of wind speed, yaw angle and the geometry of side mirror is analyzed. The scaling law of both hydrodynamic and acoustic pressure is derived, compared and used to confirm the validation of CFAT. The coherence function and contribution coefficient are used to analyze the relative contribution of hydrodynamic and acoustic pressure on front side window to the interior sound pressure. Results show that in the middle and high frequency range, although the magnitude of acoustic pressure on front side window is much smaller than that of hydrodynamic pressure, the acoustic pressure on front side window contributes much more than the hydrodynamic pressure into the interior sound pressure.

中文翻译：

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汽车前窗水动力和声压试验分析

摘要 汽车前窗上的水动力和声压对车辆内部声压都有潜在的影响。采用校正力分析技术 (CFAT) 来提取前窗上的声压。分析了车内外所有压力波动对风速、偏航角和后视镜几何形状变化的敏感性。导出、比较并用于确认 CFAT 的验证的流体动力和声压的标度定律。相干函数和贡献系数用于分析前窗水动力和声压对车内声压的相对贡献。结果表明，在中高频范围内，