双层板结构中声传播主动控制的仿真分析

Simulation analysis of active control of sound transmission through double panel structure

文章针对一个具有双层板结构的模型 ,对于在双层板结构中放置次级声源以达到主动控制低频噪声传播的方法进行了数值计算仿真。在数值计算仿真中采用直接对结构 声耦合运动方程进行傅立叶变换的方法 ,简单而有效地验证了在封闭空腔中放置次级控制声源可以达到控制低频噪声传播的目的 。

In this paper, sound transmission through double panel structure has been modeled and analyzed. The simulation analysis of active control of sound transmission by using sound control sources inside cavity is proved to have a good effect. The results of numerical calculation demonstrate the potential of the proposed approach.