| 城市高架轨道交通沿线声场分布计算模型 |
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| 引用本文： | 翟国庆,张邦俊,过春燕.城市高架轨道交通沿线声场分布计算模型[J].中国环境科学,2004,24(3):0-0. |
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| 作者姓名： | 翟国庆 张邦俊 过春燕 |
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| 作者单位： | 浙江大学环境污染控制技术研究所 浙江杭州310028 |
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| 基金项目： | 杭州市环境保护局科研项目(200012) |
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| 摘 要： | 根据波动声学和几何声学原理,将列车看作运动着的有限长线声源,建立了城市高架轨道交通沿线声场分布及其声屏障插入损失计算模型,模型中对声影区的声场分布采用惠更斯-菲涅耳原理进行推导计算,给出了理论计算公式.
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| 关 键 词： | 高架轨道交通 衍射声 声场分布 模型 |
| 文章编号： | 1000-6923(2004)03-0320-04 |
| 收稿时间： | 1900-01-01; |
| 修稿时间： | 2003年10月16 |
The calculating model of sound field distribution along the urban elevated railway |
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| DI Guo-qing,ZHANG Bang-jun,GUO Chun-yan.The calculating model of sound field distribution along the urban elevated railway[J].China Environmental Science,2004,24(3):0-0. |
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| Authors: | DI Guo-qing ZHANG Bang-jun GUO Chun-yan |
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| Abstract: | According to the theory of wave acoustics and ray acoustics, train is regarded as a moving limited line sound source. The calculating model of sound field distribution and its insert loss of sound barrier is set up along the urban elevated railway communication. In this model, the sound field distribution in sound shadow region is calculated deductively with adoption of Huygens-Fresnel principle and the theoretical calculating formula is given. |
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| Keywords: | elevated railway communication diffracted sound sound field distribution model |
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