Abstract: Effectively predict wind noise in high-speed vehicles, and provide a convenient way to solve the problem of wind noise in vehicles. The method of combining computational fluid dynamics (CFD) and finite element acoustics (FEM) is used to simulate the wind noise in high-speed cars, based on an existing model , use the modal-based acoustic-vibration coupled response analysis method to calculate the sound pressure level at the driver's left ear, compare the road test results, and study the feasibility and effectiveness of this simulation method. The unidirectional spring element is used to restrain the side window glass, and the influence of different stiffness coefficient k on the glass structure mode and simulation results is analyzed, and a more effective value of k is found to improve the simulation accuracy.

Key words: Aerodynamic noise; Acoustic finite element; Modal; Acoustic-vibration coupling

摘要： 有效预测高速车内风噪声，为解决汽车风噪问题提供便捷途径。运用计算流体力学（CFD）与声学有限元 （FEM）结合的方法对高速车内风噪声进行仿真研究，基于某现有车型，运用基于模态的声振耦合响应分析方法 计算驾驶员左耳处声压级大小，对比道路试验结果，研究此仿真方法的可行性与有效性。运用单向弹簧单元对侧窗 玻璃加以约束，分析不同刚度系数 k 对玻璃结构模态及仿真结果的影响，找到较为有效的 k 值大小，提高仿真精度。

关键词: 气动噪声；声学有限元；模态；声振耦合