韧质材质的PV B膜对声波有很好的阻尼作用，使夹胶玻璃能有效阻挡声音的传播，明显的降低外界环境噪音。
Tough PVB film can well damp sound waves and enable insulated glass effectively hinder sound transmission and definitely lower environmental noise.
建立了挠性胶管阻尼耗能的简化模型。以此为基础分析了挠性胶管的阻尼耗能的一般规律，并得出了一些新的结论。
This paper sets up a simplified physical model for viscoelastic pipe, on which a investigation on energy dissipation mechanism of it is presented and some new conclusions are given.
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