| 有源声屏障降噪中的几个基本问题 |
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| 引用本文： | 邵军,张自力.有源声屏障降噪中的几个基本问题[J].南京大学学报(自然科学版),1996,32(4):700-705. |
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| 作者姓名： | 邵军 张自力 |
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| 作者单位： | 声学研究所 |
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| 摘 要： | 有源声屏障尚处于初始阶段，许多基本问题尚未得到解决，本用数值模拟的手段分析了有源声屏障的有源控制效果与次级声源的个数，观测点的位置以及噪声频率等因素的关系；所得结构对工程实现有源声屏障降噪具有指导意义。
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| 关 键 词： | 有源声屏障 降噪 噪声控制 |
SOME BASIC PROBLEMS OF NOISE REDUCTION BY ACTIVE NOISE BARRIER |
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| Shao Jun Zhang Zili,Sha Jiazheng.SOME BASIC PROBLEMS OF NOISE REDUCTION BY ACTIVE NOISE BARRIER[J].Journal of Nanjing University: Nat Sci Ed,1996,32(4):700-705. |
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| Authors: | Shao Jun Zhang Zili Sha Jiazheng |
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| Abstract: | The study of active noise barrier is in the initial stage.Many basic problems have not been sloved properly.In this paper,by using numerical stimulation method,the relationships between effectiveness of active control and number of secondary sources,position of observer,noise frequency,etc.are analysed .And the mechanism of noise reduction by active noise barrier is interpreted qualitatively by calculating the distribution of sound pressure on top edge of barrier.The results Will have directive function for carrying out active noise barrier practically. |
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| Keywords: | active noise barrier noise reduction mechanism |
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