| 陈文清,陶猛,刘泽.蜂窝空腔板的隔声性能分析[J].声学技术,2018,37(2):105~109 |
| 蜂窝空腔板的隔声性能分析 |
| Sound insulation performance of honeycomb-hole panels |
| 投稿时间：2017-05-27 修订日期：2017-07-17 |
| DOI：10.16300/j.cnki.1000-3630.2018.02.002 |
| 中文关键词: 蜂窝空腔 三传声器 隔声性能 传声损失 |
| 英文关键词: honeycomb-hole three-microphone sound insulation performance sound transmission loss |
| 基金项目:国家自然科学基金项目（51365007，51765008）；贵州省高层次创新型人才计划项目（黔科合人才[2016]4033）；贵州大学研究生创新基金项目（研理工2017051） |
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| 中文摘要: |
| 基于驻波管中三传声器测量传声损失的方法，建立了计算蜂窝空腔板传声损失的有限元分析模型。通过对比3D打印的蜂窝空腔板的驻波管实验的实测结果与有限元分析模型的数值结果，验证了该模型总体上是可靠的。利用有限元分析模型分析了蜂窝空腔板的传声特性，讨论了空腔单元的中心间距、空腔单元壁厚、板总厚度、损耗因子以及杨氏弹性模量对蜂窝空腔板传声特性的影响，指出空腔单元壁厚、板总厚度和杨氏弹性模量对其传声损失有较大的影响，为此类结构的工程设计与优化提供了参考。 |
| 英文摘要: |
| Based on the three-microphone method of measuring sound transmission loss (TL) in the standing wave tube,the finite elements analytical model of honeycomb-hole panels is established to calculate TL.The model is proven generally reliable by the comparison between measuring result of the standing wave tube experiment of 3D printing's honeycomb-hole panel and numerical result of this finite elements analytical model.Acoustic performance of honeycomb-hole panels is analyzed by using the finite elements analytical model.The effects of center spacing and wall thickness of hole element,total thickness of panel,loss factor and Young's elastic modulus on acoustic performance of honeycomb-hole panel are discussed,which indicates that wall thickness of hole element,total thickness of panel and Young's elastic modulus have greater influence on TL.The result provides a reference for the engineering design and optimization of such kind of structures. |
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