整流罩声振试验蜂窝夹层板建模方法

摘要

Three modeling methods of honeycomb panels were studied. The sandwich theory, equivalent plate theory and honeycomb plate theory were compared one another using statistical energy analysis for prediction of high-frequency noise and vibration environment of faring structures. The statistical energy analysis models based on the three equivalent theories were established for the whole-scale fairing structure. The prediction results were compared with the experimental data tested in a reverberation chamber. This study indicates that the sandwich theory is more suitable for studying the high-frequency vibration characteristics of the honeycomb panels than the others.%针对整流罩主体结构由蜂窝板结构构成的特点，在使用统计能量分析法进行整流罩结构高频振动噪声环境预示研究时，重点对蜂窝夹层板建模的三明治夹芯板理论、等效板理论和蜂窝板理论三种等效方法进行比较分析。采用蜂窝夹层板的三种不同等效理论对整流罩整尺度结构进行统计能量分析建模，并将预示结果与在混响室内进行的该整流罩声振实验结果进行对比，分析表明三明治夹芯板理论更适用于研究蜂窝板的高频振动特性。