沙柳纤维材料吸声降噪性能研究
|
摘要
将沙柳加工粉碎后与白乳胶和水混合,通过MN压力成型机制备沙柳纤维板吸声材料。采用驻波管传递函数法,研究纤维含水率、纤维细度、板材密度和厚度与沙柳纤维板吸声降噪性能的关系。结果表明,含水率降低,沙柳纤维越细,材料密度增大,材料的吸声系数与降噪系数增大,吸声降噪效果变好;随着厚度增加,吸声系数与降噪系数在低频段增大,在中频段差距减小。沙柳纤维板的平均吸声系数最佳可达到0.54。
After processing and crushing the salix was mixed with white latex and water,the salix fiberboard was prepared by MN pressure forming machine.The relations between the sound absorption and noise reduction performances of salix fiber material and the moisture content(MC),fiber fineness,fiberboard density and thickness were investigated by using impedance tube method.The results showed that when MC was low,salix fiber was fine and the density of material increased,the sound absorption and noise reduction effect of material were better.As the thickness of tested materials increased the sound absorption and noise reduction coefficient also raised correspondingly within the low-frequency,and the gap reduced within the intermediate frequency.The average sound absorption coefficient ofsalix fiber can reach 0.54.
After processing and crushing the salix was mixed with white latex and water,the salix fiberboard was prepared by MN pressure forming machine.The relations between the sound absorption and noise reduction performances of salix fiber material and the moisture content(MC),fiber fineness,fiberboard density and thickness were investigated by using impedance tube method.The results showed that when MC was low,salix fiber was fine and the density of material increased,the sound absorption and noise reduction effect of material were better.As the thickness of tested materials increased the sound absorption and noise reduction coefficient also raised correspondingly within the low-frequency,and the gap reduced within the intermediate frequency.The average sound absorption coefficient ofsalix fiber can reach 0.54.
引文
[1]朱伟明,张扬.舰船空调通风系统噪声控制技术研究[J].中国水运,2013,13(1):131-132.
[2]林波艺.噪声污染对人体的危害及防治对策[J].环境,2009(S1):119-120.
[3]中国环境保护产业协会噪声与振动控制委员会.我国噪声与振动控制行业2013年发展综述[J].中国环保产业,2014(12):25-35.
[4]方丹群,张斌,孙家麒.噪声控制工程学[M].北京:科学出版社,2013,405.
[5]王彦琴,魏显威,王健.公路交通噪声控制的发展动向[J].公路交通科技,2010,27(10):462-464.
[6]宋博骐,彭立民,王东.樟子松横切面吸声性能及提高[C].北京:2015年全国声学设计与噪声振动控制工程学术会议,2015.
[7]王军锋,黄善忠,彭立民,等.轻木木材微观解剖结构对吸声性能的影响[J].木材加工机械,2015,26(5):34-37.
[8]王东,彭立民,傅峰,等.腐朽木材的吸声性能[J].林业科学,2015,51(11):91-96.
[9]徐华东,王立海.杨木径切面准纵波传播路径追踪及速度变化试验研究[J].声学学报,2012,37(1):62-67.
[10]王东,彭立民,傅峰,等.柳杉木材吸声性能的研究[J].中南林业科技大学学报,2014,34(10):137-140
[11]常乐,吴智慧.室内木制品用空心刨花板吸声性能的研究[J].南京林业大学学报(自然科学版),2011,35(2):56-60.
[12]王永华.多级仿生耦合材料吸声性能及机理研究[D].长春:吉林大学,2014.
[13]孙朋.钢渣多孔吸声材料的制备及吸声性能研究[D].北京:北京科技大学,2016.
[14]Gai X L,Xing T,Li X H,Zhang B,et al.Sound absorption properties of microperforated panel with membrane cell and mass blocks composite structure[J].Applied Acoustics,2018,137:98-107.
[15]Azma Putra,Hee Khai Or,Mohd Zulkefli Selamat,et al.Sound absorption of extracted pineapple-leaf fibres[J].Applied Acoustics,2018,136:9-15.
[16]Soltani P,Azimian M,Wiegmann A,et al.Experimental and computational analysis of sound absorption behavior in needled nonwovens[J].Journal of Sound and Vibration,2018,426:1-18.
[17]Jiang Z H,Zhao R J,Fei B H.Sound absorption property of wood for five eucalypt species[J].Journal of Forestry Research,2004,15(3):207-210.
[18]黄承,段惺,周祚方.结构因素对多孔材料吸声性能的影响[J].化工新型材料,2011,39(2):20-22.
[19]尉海军,姚广春,王晓琳,等.铝硅闭孔泡沫铝吸声性能研究[J].功能材料,2006,37(12):2014-2018.
[20]Bucur V,Clément A,Bitsch M,et al.Acoustic properties of resonance wood and distribution of inorganic components of the cell wall[J].Holz als Rohund Werkstoff,1999,57(2):103-104.
[2]林波艺.噪声污染对人体的危害及防治对策[J].环境,2009(S1):119-120.
[3]中国环境保护产业协会噪声与振动控制委员会.我国噪声与振动控制行业2013年发展综述[J].中国环保产业,2014(12):25-35.
[4]方丹群,张斌,孙家麒.噪声控制工程学[M].北京:科学出版社,2013,405.
[5]王彦琴,魏显威,王健.公路交通噪声控制的发展动向[J].公路交通科技,2010,27(10):462-464.
[6]宋博骐,彭立民,王东.樟子松横切面吸声性能及提高[C].北京:2015年全国声学设计与噪声振动控制工程学术会议,2015.
[7]王军锋,黄善忠,彭立民,等.轻木木材微观解剖结构对吸声性能的影响[J].木材加工机械,2015,26(5):34-37.
[8]王东,彭立民,傅峰,等.腐朽木材的吸声性能[J].林业科学,2015,51(11):91-96.
[9]徐华东,王立海.杨木径切面准纵波传播路径追踪及速度变化试验研究[J].声学学报,2012,37(1):62-67.
[10]王东,彭立民,傅峰,等.柳杉木材吸声性能的研究[J].中南林业科技大学学报,2014,34(10):137-140
[11]常乐,吴智慧.室内木制品用空心刨花板吸声性能的研究[J].南京林业大学学报(自然科学版),2011,35(2):56-60.
[12]王永华.多级仿生耦合材料吸声性能及机理研究[D].长春:吉林大学,2014.
[13]孙朋.钢渣多孔吸声材料的制备及吸声性能研究[D].北京:北京科技大学,2016.
[14]Gai X L,Xing T,Li X H,Zhang B,et al.Sound absorption properties of microperforated panel with membrane cell and mass blocks composite structure[J].Applied Acoustics,2018,137:98-107.
[15]Azma Putra,Hee Khai Or,Mohd Zulkefli Selamat,et al.Sound absorption of extracted pineapple-leaf fibres[J].Applied Acoustics,2018,136:9-15.
[16]Soltani P,Azimian M,Wiegmann A,et al.Experimental and computational analysis of sound absorption behavior in needled nonwovens[J].Journal of Sound and Vibration,2018,426:1-18.
[17]Jiang Z H,Zhao R J,Fei B H.Sound absorption property of wood for five eucalypt species[J].Journal of Forestry Research,2004,15(3):207-210.
[18]黄承,段惺,周祚方.结构因素对多孔材料吸声性能的影响[J].化工新型材料,2011,39(2):20-22.
[19]尉海军,姚广春,王晓琳,等.铝硅闭孔泡沫铝吸声性能研究[J].功能材料,2006,37(12):2014-2018.
[20]Bucur V,Clément A,Bitsch M,et al.Acoustic properties of resonance wood and distribution of inorganic components of the cell wall[J].Holz als Rohund Werkstoff,1999,57(2):103-104.