| 闭孔泡沫铝声屏障的降噪效果研究 |
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| 引用本文： | 梁李斯,姚广春,穆永亮,王磊.闭孔泡沫铝声屏障的降噪效果研究[J].东北大学学报(自然科学版),2011,32(2):274-276. |
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| 作者姓名： | 梁李斯 姚广春 穆永亮 王磊 |
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| 作者单位： | 东北大学,材料与冶金学院,辽宁,沈阳,110819 |
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| 基金项目： | 国家高技术研究发展计划项目，国家自然科学基金资助项目 |
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| 摘 要： | 用闭孔泡沫铝板作为高速公路声屏障材料,以沈阳市东西快速干道珠林桥附近安装的几段声屏障为例,对高速公路安装声屏障前后噪声的声压级进行了实地测量,计算得出声屏障的插入损失,以此考察闭孔泡沫铝板声屏障的降噪效果.通过对闭孔泡沫铝声屏障和普通百叶声屏障降噪效果的对比分析,发现闭孔泡沫铝声屏障整体降噪效果优于普通百叶声屏障,在高...
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| 关 键 词： | 降噪 闭孔泡沫铝 频谱分析 声屏障 插入损失 |
Study on Denoising Effect of Sound Barriers Made from Closed-Cell Aluminum Foam |
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| LIANG Li-si,YAO Guang-chun,MU Yong-liang,WANG Lei.Study on Denoising Effect of Sound Barriers Made from Closed-Cell Aluminum Foam[J].Journal of Northeastern University(Natural Science),2011,32(2):274-276. |
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| Authors: | LIANG Li-si YAO Guang-chun MU Yong-liang WANG Lei |
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| Institution: | LIANG Li-si,YAO Guang-chun,MU Yong-liang,WANG Lei(School of Materials & Metallurgy,Northeastern University,Shenyang 110819,China.) |
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| Abstract: | The denoising effect of the sound barriers made from closed-cell aluminum foam was investigated taking some sections of the sound barriers located nearby the Zhulin Overcross of the East-West expressway in Shenyang City as examples,where the sound pressure level of noise was measured with spectrum analysis before and after setting the sound barriers there.The denoising effect of closed-cell aluminum foam was evaluated via the insertion loss calculated for such sound barriers.A comparative denoising analysis... |
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| Keywords: | denoising closed-cell aluminum foam spectrum analysis sound barriers insertion loss |
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