文章摘要
古林强,盛胜我.扩散吸声体的优化设计[J].,2009,28(3):184-189
扩散吸声体的优化设计
Optimization of diffsorber
  
中文摘要:
      由于扩散吸声体(Diffsorber)同时兼顾了扩散和吸声两方面的性能,在小房间的声学环境控制中有着特殊的功能。在比较成熟声吸收和声扩散理论的基础上,结合数论中的伪随机理论,提出利用吸声材料本身的声阻抗实现伪随机分布的新优化设计手段,并利用计算机编程实现,由此设计了多种不同吸声效果的扩散吸声体,以满足不同场合的需要。实验结果表明新方法的有效性。同时探讨了新型吸声扩散体的应用潜力。
英文摘要:
      Due to its diffusion and absorption properties,diffsorber has a special effect on the acoustics of small rooms.Based on the theory of sound diffusion and sound absorption by porous fiber materials,and making use of the technique of pseudo-random signal processing in number theory,a computer program is developed to put foreword the new optimization program for the design of diffsorber.Many diffsorbers with different absorption are made and experimental research shows that the new optimization program works effectively.Then potential application is also discussed.
DOI:10.11684/j.issn.1000-310X.2009.03.005
中文关键词: 扩散吸声体  伪随机  声散射  声扩散  优化
英文关键词: Diffsorber  Random process  Sound scattering  Sound diffusion  Optimization
基金项目:
作者单位
古林强 同济大学声学研究所 
盛胜我 同济大学声学研究所 
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