| 通孔与闭孔泡沫铝水下隔声性能实验研究 |
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| 引用本文： | 王光荣,何世平.通孔与闭孔泡沫铝水下隔声性能实验研究[J].海军工程大学学报,2012(4):76-78,96. |
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| 作者姓名： | 王光荣 何世平 |
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| 作者单位： | 海军装备部;海军工程大学船舶与动力学院 |
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| 摘 要： | 对空气饱和与水饱和两种情况下的通孔泡沫铝以及闭孔泡沫铝开展了水下隔声性能实验研究。实验结果表明:在500,4 000]Hz范围内,水饱和通孔泡沫铝和闭孔泡沫铝具有良好的隔声性能,而空气饱和通孔泡沫铝水下隔声性能相对较弱。与现有橡胶类水声去耦材料相比,水饱和通孔泡沫铝具有良好的低频、宽带隔声特性以及耐压且不受温度的影响等特点,可以作为一种潜在的性能优良的水声去耦材料。
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| 关 键 词： | 通孔泡沫铝 闭孔泡沫铝 水下隔声 空气饱和 水饱和 |
Experimental study of underwater sound insulation of open-cell and close-cell Al foam |
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| WANG Guang-rong,HE Shi-ping.Experimental study of underwater sound insulation of open-cell and close-cell Al foam[J].Journal of Naval University of Engineering,2012(4):76-78,96. |
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| Authors: | WANG Guang-rong HE Shi-ping |
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| Institution: | 1.Naval Dept.of Equipment,Beijing 100841,China;2.College of Naval Architecture and Power,Naval Univ.of Engineering,Wuhan 430033,China) |
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| Abstract: | Experimental studies were made of underwater sound insulation characteristics of air-filled open-cell Al foam,water-filled open-cell Al foam and close-cell Al foam.The experimental results show that in the 500 Hz~4 000 Hz band the water-filled open-cell Al foam and close-cell Al foam have good properties of underwater sound insulation,while air-filled open-cell Al foam has poor properties of underwater sound insulation.Compared with the rubber-like underwater decoupling material,the water-filled open-cell Al foam is a kind of nice decoupling material,which is characterized by good low frequency,wide-band underwater sound insulation,and resistance to pressure,and which is almost not influenced by temperature. |
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| Keywords: | open-cell Al foam close-cell Al foam underwater sound insulation air-filled water-filled |
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