芳纶毡体/阻尼弹性薄膜复合材料的吸声隔声性能
Sound Absorption and Sound Insulation Properties of Aramid Felt/Damping Elastic Film Composite
摘 要
制备了非织造芳纶毡体、阻尼弹性薄膜及双层、三层结构的非织造芳纶毡体/阻尼弹性薄膜复合材料; 利用驻波管测试方法研究了非织造芳纶毡体厚度及不同复合结构对复合材料吸声性能的影响; 利用混响室-消声室法研究了各试样的隔声性能。结果表明: 三层复合材料的吸声隔声性能优于两层复合材料的; 对于厚度相同的三层复合材料, 表层材料应选择吸声性能较好的材料。
阻尼弹性薄膜
复合材料
吸声
隔声
nonwoven aramid felt
damping elastic film
composite
sound-absorption
sound-insulation
Abstract
Nonwoven aramid felt, damping elastic films, and double, three layer compound structure nonwoven aramid felt/damping elastic film composite materials were prepared. Standing wave tube test method was used to investigate the influence of sound absorption coefficient in different thickness of aramid felt and different compound structures of the composite. Aramid felt and damping elastic film were placed in reverberation and anechoic room to test the sound-insulation capabilities. The results showed that the sound absorption and sound insulation properties of the three-layer composite material was superior to a composite of two layers; for the same thickness of three layer compound materials, good sound-absorption property of the surface layer material should be selected.
中图分类号 TB332
所属栏目 新材料 新工艺
基金项目 国家高技术研究发展计划(863计划)资助项目(SQ2010AA0220844001);国家自然科学基金资助项目(50703023);上海市重大基础研究项目(08dj1400400)
收稿日期 2011/9/22
修改稿日期 2012/5/30
网络出版日期
作者单位点击查看
备注鲁灿灿(1987-), 女, 山东枣庄人, 硕士研究生。
引用该论文: LU Can-can,LI Hua,KANG Hong-mei,LIU He-zhou. Sound Absorption and Sound Insulation Properties of Aramid Felt/Damping Elastic Film Composite[J]. Materials for mechancial engineering, 2012, 36(12): 80～83
鲁灿灿,李华,康红梅,刘河洲. 芳纶毡体/阻尼弹性薄膜复合材料的吸声隔声性能[J]. 机械工程材料, 2012, 36(12): 80～83
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【2】VIJAYANAND S M, MARIJN M C G W.Acoustical characteristics of textile materials[J].Textile Research Journal,2003,73:827-837.
【3】子安胜.建筑吸声材料[M].高履泰,译.北京:中国建筑工业出版社,1972:94-99.
【4】SHOSHANI Y, ROSENHOUSE G.Noise-insulating blankets made of textile[J].Applied Acoustics,1992,35(2): 129-138.
【5】CORSARO R D, SPERLING L H.Sound and vibration damping with polymers[M].Washington DC:American Chemical Society,1990:320-327.
【6】MCHALE G, NEWTON M I, BANERJEE M K,et al.Acoustic wave-liquid interactions[J].Materials Science and Engineering,2000,12(1):17-22.
【7】CHANDRA R, SINGH S P, GUPTA K.Damping studies in fiber-reinforced composites-a review[J].Composite Structures,1999,46(1):41-46.
【8】MOTT P H, ROLAND C M, CORSARO R D.Acoustic and dynamic mechanical property of a polyurethane rubber[J].Journal of Acoustical Society of America,2002,111(4):1782-1790.
【9】KJELLBERG A, LANDSTROM U, TESARZ M,et al.The effects of nonphysical noise characteristics,ongoing task and noise sensitivity on annoyance and distraction due to noise at work[J].Journal of Environmental Psychology,1996,16(2):123-136.
【10】KIRBY R, CUMMINGS A.Prediction of the bulk acoustic property of fibrous materials at low frequencies[J].Journal of Sound and Vibration,1999,56(2):101-125.
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