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第 37 卷 第 5 期 Vol. 37, No.5
2018 年 9 月 Journal of Applied Acoustics September, 2018

纪念应崇福院士诞辰100周年

用于开口声辐射控制的虚拟声屏障实现

方法及机理研究 ∗

王淑萍 1 陶建成 1† 邱小军 2

(1 南京大学声学研究所 教育部近代声学重点实验室 南京 210093)
(2 悉尼科技大学工程与信息学院 音频、声学与振动研究中心 新南威尔士 2007)
摘要 建筑物通常留有开口以便人员物料的进出及室内的自然通风采光，但这些开口也是噪声传播的途径。
传统被动噪声控制方法需要将开口封闭，且对低频噪声的控制效果不好，故引入有源噪声控制技术降低室内
声源通过开口的声辐射。基于惠更斯原理，均布开口的次级源和误差传声器构成的平面型虚拟声屏障可以实
现对开口声辐射的有效控制，数值仿真和实验已证明其有效性。将次级源安装在开口边界更有利于保留开口
的功能且方便实际安装，但这样的单层边界虚拟声屏障降噪效果存在上限，仅能在低频段实现全局控制。和单
层边界次级源相比，双层边界次级源可显著提高降噪量和有效降噪频率上限。该文回顾了开口声辐射有源控
制的相关工作，并讨论了未来可能的研究方向。
关键词 开口声辐射，有源控制，虚拟声屏障
中图法分类号: O429 文献标识码: A 文章编号: 1000-310X(2018)05-0772-09
DOI: 10.11684/j.issn.1000-310X.2018.05.024
Research on the methods and mechanisms of active control of sound radiation

through openings

WANG Shuping 1 TAO Jiancheng 1 QIU Xiaojun 2

(1 Key Laboratory of Modern Acoustics and Institute of Acoustics, Nanjing University, Nanjing 210093, China)
(2 Centre for Audio, Acoustics and Vibration, Faculty of Engineering and IT, University of Technology Sydney,
NSW 2007, Australia)

Abstract Building openings help the access, lighting and natural ventilation, but they provide transmission
paths for noise at the same time. To reduce the noise transmission, the openings have to be sealed with
the traditional passive noise control methods, while the active noise control technique offers another solution,
which is especially effective at low frequencies. According to Huygens’ principle, a planar virtual sound barrier
with secondary sources and error microphones evenly distributed over the entire opening can achieve global
control of sound radiation through openings, and it has been demonstrated with both numerical simulations
and experiments. Secondary sources only at the edge of the opening can keep the functionalities of the opening
and are easier to implement in practical applications, but such a single-layer secondary source system at the
edge is only effective within low frequency range. Compared with a single-layer secondary source system, a
double-layer secondary source system improves the noise reduction performance significantly, as well as the
upper limit frequency of effective control. This paper reviews the recent work on the active control of sound
radiation through openings and discusses the future directions.
Key words Sound radiation through openings, Active noise control, Virtual sound barrier

2018-06-13 收稿; 2018-08-15 定稿
国家自然科学基金项目 (11474163, 11874218)
∗
作者简介: 王淑萍 (1991- ), 女, 江苏泰州人, 博士研究生, 研究方向: 有源噪声控制。
† 通讯作者 E-mail: jctao@nju.edu.cn