| 脉冲法对隔声屏障顶端式样的衍射分析 |
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| 引用本文： | 朱晓天,侯秋文.脉冲法对隔声屏障顶端式样的衍射分析[J].环境工程,2006,24(3):54-56. |
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| 作者姓名： | 朱晓天 侯秋文 |
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| 作者单位： | 中国矿业大学建筑系,江苏,221008;中国矿业大学数力系,江苏,221008 |
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| 摘 要： | 介绍了声屏障顶部结构衍射的评价标准和计算方法。给出了具有T型、橄榄型、弧型、L型等4种不同顶端式样声屏障的衍射声场有限元分析,以及使用脉冲方法得到的各种顶端式样在隔声屏障铺设吸声材料和不铺设吸声材料两种情况下插入损失的计算结果。
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| 关 键 词： | 隔声屏障 顶端结构 衍射 插入损失 |
| 收稿时间： | 2005-12-01 |
| 修稿时间： | 2005-12-01 |
DIFFRACTION ANALYSIS OF "ADDED DEVICE" OF NOISE BARRIER USING IMPULSE METHOD |
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| Zhu Xiaotian,Hou Qiuwen.DIFFRACTION ANALYSIS OF "ADDED DEVICE" OF NOISE BARRIER USING IMPULSE METHOD[J].Environmental Engineering,2006,24(3):54-56. |
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| Authors: | Zhu Xiaotian Hou Qiuwen |
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| Institution: | Zhu Xiaotian Hou Qiuwen |
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| Abstract: | The evaluation standard and testing method for “added device” of a noise barrier were introduced.Four barriers with different added device were studied and the diffraction fields were visualized using finite element analysis.The insertion losses of four added devices installing on the barriers with and without absorbent material were calculated and compared. |
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| Keywords: | noise barrier added device diffraction and insertion loss |
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