基于统计能量法建立发泡铝夹芯板隔声预测模型并进行试验验证，利用该模型预测了发泡铝密度和厚度对夹芯板隔声性能的影响，分析了夹芯板的声振特性，并通过敷设阻尼层对夹芯板隔声性能进行了优化。结果表明：随着发泡铝密度的增加，发泡铝夹芯板的隔声量在低中频段的增幅较大，在高频段的增幅较小，随着发泡铝厚度的增加，隔声量在中频段的增幅较大，在低频与高频段的增幅较小；计权隔声量随发泡铝密度或厚度的增加而增大，但增幅减小；在发泡铝中间敷设0.8 mm厚的阻尼层后，整体计权隔声量提高了2.8 dB。

A sound insulation prediction model of the aluminum foam sandwich panel was established on the basis of statistical energy analysis method, and verified by experiments. The effects of density and thickness of the aluminum foam on sound insulation property of the sandwich panel were predicted by the model. The acoustic vibration characteristics of the sandwich panel were analyzed. The sound insulation property of the sandwich panel was optimized by installation of damping layer. The results show that with the density of the aluminum foam increasing, the sound reduction index of the aluminum foam sandwich panel had relatively large increase amplitudes at low and medium frequencies and relatively small increase amplitudes at high frequencies. With the thickness of the aluminum foam increasing, the sound reduction index had relatively large increase amplitudes at medium frequencies and relatirely small increase amplitudes at low and high frequencies. The weighted sound reduction index increased with the density or the thickness of the aluminum foam increasing, but the increase amplitude decreased. When a 0.8 mm thick damping layer was placed in the middle of the aluminum foam, the weighted sound reduction index was effectively improved by 2.8 dB.