陶瓷纤维板结构参数对吸声性能的影响研究

Research on the Influence of Structure Parameters of Ceramic Fiber Board on Sound Absorption Performance

文章针对城市变电站的噪声特点及服役环境,利用传递函数法对陶瓷纤维板吸声性能进行测试,研究了不同纤维体密度、纤维直径、吸声板容重、吸声板厚度和背腔厚度对陶瓷纤维板吸声性能的影响,并进一步探讨了影响吸声性能的原因,为开发新型低频降噪材料、降低变电站噪声影响奠定了基础。

In view of the noise characteristics and service environment of urban transformer substations,this paper tested sound absorption performance of ceramic fiber board by using the transfer function method;researched the influence of different fiber volume density,fiber diameter,unit volume weight of acoustic board,thickness of acoustic board,and thickness of back cavity on the sound absorption performance of ceramic fiber board;further explored the reasons for the influence on sound absorption performance;and thus laid a foundation for the development of new low-frequency noise reduction material and the reduction of noise influence caused by transformer substations.