木质阻尼复合结构隔声性能的研究现状

Research Status of Sound Insulation Performance of Wooden Damping Composite Structure

利用木质复合材料作为室内隔声材料,是控制室内噪声的重要手段。与钢质板材料的隔声性能相比较,木质材料的隔声性能较差。然而隔声性能好的高分子阻尼材料由于刚度较低不能单独使用,因此将木质材料与高分子阻尼材料复合制成层合复合材料,研究结果表明:通过提高木质和阻尼材料的厚度、密度或者改变木质板材与阻尼层合的层数,均可以提高复合材料的隔声性能,这种材料被应用在木质门、木质墙等室内装修中,是未来的一个发展方向。

Using wood composite material as sound insulation material is an important means of indoor noise control.Compared with steel plate material,the sound insulation performance of wood material is poorer.Due to the low stiffness,the polymer damping material with good sound insulation performance cannot be used alone,so the wood material and polymer damping material are composited.And the research result shows that：by improving the wood and damping material thickness,density,or changing the laminated layer of wooden plank and damping,can improve the sound insulation performance of composite material,the material is used in indoor decoration such as wooden door,wooden wall,etc,which is a development direction in the future.