中文说明： 通过建立模型的消声室，输出声功率频谱，从谱中找到峰值频率点，确定了对辐射噪声贡献较大的频率。然后对应那些频率点，看那些部件的振速比较大，可以通过加筋等方法，来改善。这个过程还可以通过面板贡献量分析来精确的仿真。具体方法是： 对一些比较大的面板结构，建立几个区域(面板集合), 然后计算对应峰值频率点的贡献量， 就可以比较精确的知道对应的频率点，具体那个部件的辐射噪声比较大。这样可以集中力量改进那些辐射噪声比较大的部件。
English Description：
Through the establishment of an anechoic chamber model, the output acoustic power spectrum, find the peak frequency from the spectrum to determine the contribution of a larger frequency radiated noise. Then those frequencies corresponding point, look at those parts of the velocity is relatively large, can be reinforced by other methods, to improve. This process can also be panel contribution analysis to accurate simulation through.The specific method is: for some of the larger panel structure, the establishment of several regional (panel set), and then calculate the corresponding contribution of the peak frequency, it can be more accurately know the frequency corresponding to the point, the specific components of the radiated noise is relatively large . So you can concentrate on improving those radiated noise larger parts.