Three-dimensional Numerical Analysis on Acoustic Properties of Double-porosity Materials
碩士 === 國立成功大學 === 土木工程學系 === 105 === Most sound absorption materials are generally low density and high porosity, such as rockwool and glasswool. To improve the ability of sound absorption at low to medium frequencies, these porous materials are added meso-pores of size much bigger than the characte...
| Main Authors: | , |
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| Format: | Others |
| Language: | zh-TW |
| Published: |
2017
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| Online Access: | http://ndltd.ncl.edu.tw/handle/a67duy |