空腔封堵双组分聚氨酯发泡材料对改善车内噪声的研究

Improve Vehicle NVH Performance by 2K PU Foam Cavity Sealing Application

通过分析汽车噪声的来源和噪声传播途径,研究聚氨酯发泡材料对车身空腔封阻噪声传播途径的作用,并通过具体车型进行验证。

Through the analyses of noise source and noise transmission path in vehicles, the effect of 2K PU foam to block up the transmission path of the noise from the cavity is studied. The effect is also verified by a test on a real car.