| 多种吸声型声屏障降噪效果比较 |
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| 引用本文： | 罗文俊,李恒斌,陈靖,袁钎. 多种吸声型声屏障降噪效果比较[J]. 城市轨道交通研究, 2017, 20(5). DOI: 10.16037/j.1007-869x.2017.05.022 |
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| 作者姓名： | 罗文俊 李恒斌 陈靖 袁钎 |
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| 作者单位： | 1. 华东交通大学铁路环境振动与噪声教育部工程研究中心,330013,南昌;2. 广州地铁集团有限公司运营事业总部,510310,广州 |
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| 基金项目： | 国家自然科学基金项目，江西省杰出青年人才计划，江西省自然科学基金项目 |
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| 摘 要： | 高速铁路所辐射噪声对周围环境的危害通常采用吸声型声屏障来降低。吸声型声屏障降噪效果与吸声材料特性有关。为此选取了3种不同的声屏障吸声材料,利用绕射声衰减的理论计算方法和统计能量法,对比分析不同吸声型声屏障的降噪效果。研究结果表明:不同吸声材料的加入对于声屏障降噪的效果均有一定的影响,相互之间的差值约为5~6dB。
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| 关 键 词： | 高速铁路 吸声型声屏障 降噪效果 统计能量法(SEA) |
Comparative Study of Noise Reduction Effects of Different Sound Absorption Barriers |
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| LUO Wenjun,LI Hengbin,CHEN Jing,YUAN Qian. Comparative Study of Noise Reduction Effects of Different Sound Absorption Barriers[J]. Urban Mass Transit, 2017, 20(5). DOI: 10.16037/j.1007-869x.2017.05.022 |
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| Authors: | LUO Wenjun LI Hengbin CHEN Jing YUAN Qian |
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| Abstract: | The radiation noise of high-speed railway is a harm to surrounding areas,which is often reduced by sound absorption barriers,and the reduction effect of noise barrier is related to the characteristics of sound absorption materials.In this paper,three different sound absorption barriers are selected,their noise reduction effects are compared and analyzed by using diffraction attenuation theory calculation method and statistical energy analysis method.The results show that the adding component of different sound absorption materials will directly influence the noise reduction effects of sound barriers,the difference between them is about 5～6 dB. |
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| Keywords: | high-speed railway sound absorption barrier noise reduction effect statistical energy analysis(SEA) |
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