邮轮舱室噪声控制模型试验

Model Test of Noise Control for Cruise Ship Cabin

以邮轮舱室为对象,建立完整的二层二居邮轮舱室模型。采用两种降噪技术,分别为黏弹性阻尼+钢片和黏弹性阻尼+钢片+矿物棉。依据相关规范要求进行邮轮舱室噪声控制模型试验,测量舱室和走廊的隔声量。结果表明,采用两种降噪技术的舱室,其噪声均达到低于45 dB的规范要求,且在噪声频率高于315 Hz时隔声量均达30 dB以上。所采用的两种降噪技术在邮轮舱室噪声控制中具有一定的适用性。

Taken the cruise ship cabin as the object,a complete two-story two-bedroom cruise ship cabin model is established.Two noise reduction technologies,namely viscoelastic damping+steel sheets and viscoelastic damping+steel sheets+mineral wool,are adopted.A model test of noise control for cruise ship cabin is conducted,and the sound insulation quantity of cabin and corridor is measured.The results show that the cabin noises with the two noise reduction technologies both reach the specification requirement of less than 45 dB,and the sound insulation quantities both reach more than 30 dB when the noise frequency is higher than 315 Hz.The two noise reduction technologies adopted are of certain applicability in the noise control for cruise ship cabin.