| 聂珊珊,康健.大空间人群声学模型[J].,2016,35(2):128-136 |
| 大空间人群声学模型 |
| Acoustic model of crowd in large spaces |
| 投稿时间：2013-10-11 修订日期：2016-02-29 |
| 中文摘要: |
| 大建筑空间的声场理论不同于经典扩散场的声场理论。为了探究大空间建筑中人群分布对声场的影响,本文用理论计算与实际测量相结合的方法,提出了一种适用于大空间的人群声学模型。通过理论计算得到了等效声源的计算方法和人群声源的简化方法。通过实际测试分析回归出人群密度与声压级之间的关系曲线和人群总数与发声人数之间的关系曲线。最后,用实际测量的数据证实了所提出的人群理论声学模型的准确性。 |
| 英文摘要: |
| The sound field in large spaces is different from that based on the classic diffuse sound field theory. In order to examine the effects of crowd distribution on the sound field in large spaces, this study established an acoustic model of crowd for large spaces, using the combination of theoretical calculation and actual measurement. With the theoretical calculation, a model for equivalent sound sources for crowd and a simplification model for crowd are developed. With the actual measurement, the relationship between crowd density and sound level and the relationship between the total number of people and the number of the speakers are obtained. Finally, the acoustic model of crowd is validated through measurement. |
| DOI：10.11684/j.issn.1000-310X.2016.02.006 |
| 中文关键词: 大空间,人群,声学模型 |
| 英文关键词: Large-space,crowd,acoustic model |
| 基金项目:特大空间中声学引导人群疏散模型研究 |
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