噪声与振动控制

›› 2011, Vol. 31 ›› Issue (4): 182-184.DOI: 10.3969/j.issn.1006-1355-2011.04.043

• 7.减振降噪设备和器材 • 上一篇    下一篇

采用驻波理论的一种特殊的隔声结构

甘晓晔1,赵新光2,刘心红2,陈长征2   

  1. （ 1.辽宁科技学院 机械工程学院， 辽宁 本溪 117004； 2.沈阳工业大学， 沈阳 110870 ）
  • 收稿日期:2010-11-22 修回日期:2010-12-23 出版日期:2011-08-18 发布日期:2011-08-18
  • 通讯作者: 甘晓晔

Study on a Special Noise Isolation Structure Based on Standing Wave Theory

GAN Xiao-ye 1,ZHAO Xin-guang 2,LIU Xin-hong 2,CHEN Chang-zheng 2   

  1. （ 1. Liaoning Institute of Science and Technology, Benxi 117004， Liaoning China; 2. Vibration and Noise Institute of Shenyang University of Technology, Shenyang 110870, China ）
  • Received:2010-11-22 Revised:2010-12-23 Online:2011-08-18 Published:2011-08-18

摘要： 在为相对狭小声源作隔声处理过程中，考虑到声音传播时出现类似管道中的驻波现象，通过理论计算，设计新型的隔声结构。经真实的实验研究结果验证，这种结构不仅能有效地吸收隔声,还能防止因驻波现象对机器本身造成的不良影响。

关键词: 声学, 隔声罩, 设计, 噪声治理

Abstract: A new sound isolation structure is designed on the base of stationary wave theory for sound isolation processing of the relatively small noise sources with their waves propagating in narrow paths as in the ducts. This design is confirmed by an in-situ experiment. Results show that this structure is effective in sound absorption, and can eliminate the adverse impact of the stationary wave on machine itself.

Key words: acoustics, acoustic cover assembly, design, noise control

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