A mixed method for measuring low-frequency acoustic properties of macromolecular materials
文献类型：期刊论文
| 作者 | Liu Hongwei; Yao Lei; Zhao Hong; Zhang Jichuan; Xue Zhaohong |
| 刊名 | SCIENCE IN CHINA SERIES G-PHYSICS MECHANICS & ASTRONOMY
 |
| 出版日期 | 2006-12-01 |
| 卷号 | 49期号:6页码:729-739 |
| 关键词 | Low-frequency Acoustic Properties Dynamic Mechanical Properties Principles Of Time-temperature Superposition Acoustic Pipe Sound Absorption Coefficient |
| ISSN号 | 1672-1799 |
| DOI | 10.1007/s11433-006-2010-2 |
| 英文摘要 | A mixed method for measuring low-frequency acoustic properties of macromolecular materials is presented. The dynamic mechanical parameters of materials are first measured by using Dynamic Mechanical Thermal Apparatus(DMTA) at low frequencies, usually less than 100 Hz; then based on the Principles of Time-Temperature Super-position (TTS), these parameters are extended to the frequency range that acousticians are concerned about, usually from hundreds to thousands of hertz; finally the extended dynamic mechanical parameters are transformed into acoustic parameters with the help of acoustic measurement and inverse analysis. To test the feasibility and accuracy, we measure a kind of rubber sample in DMTA and acquire the basic acoustic parameters of the sample by using this method. While applying the basic parameters to calculating characteristics of the sample in acoustic pipe, a reasonable agreement of sound absorption coefficients is obtained between the calculations and measurements in the acoustic pipe. |
| 语种 | 英语 |
| WOS记录号 | WOS:000242545000009 |
| 出版者 | SCIENCE CHINA PRESS |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/58917]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Liu Hongwei |
| 作者单位 | 1.Chinese Acad Sci, Inst Acoust, Natl Key Lab Acoust, Beijing 100080, Peoples R China 2.Chinese Acad Sci, Inst Chem, Beijing 100080, Peoples R China 3.Grad Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu Hongwei,Yao Lei,Zhao Hong,et al. A mixed method for measuring low-frequency acoustic properties of macromolecular materials[J]. SCIENCE IN CHINA SERIES G-PHYSICS MECHANICS & ASTRONOMY,2006,49(6):729-739. |
| APA | Liu Hongwei,Yao Lei,Zhao Hong,Zhang Jichuan,&Xue Zhaohong.(2006).A mixed method for measuring low-frequency acoustic properties of macromolecular materials.SCIENCE IN CHINA SERIES G-PHYSICS MECHANICS & ASTRONOMY,49(6),729-739. |
| MLA | Liu Hongwei,et al."A mixed method for measuring low-frequency acoustic properties of macromolecular materials".SCIENCE IN CHINA SERIES G-PHYSICS MECHANICS & ASTRONOMY 49.6(2006):729-739. |
入库方式： OAI收割
来源：化学研究所
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