摘要
为满足轨道交通轻量化需求,实现芳纶蜂窝夹心复合结构在高速列车中的隔声应用,本文通过热压成型法和四传感器阻抗管法分析蜂窝芯规格(密度和边长)、面板材料(碳纤维,玻璃纤维,聚苯硫醚(PPS))和玻璃微珠改性对蜂窝夹芯板隔声性能的影响。结果表明,蜂窝芯密度增大,隔声性能提升,而蜂窝芯边长对隔声性能几乎无影响;在100~2500 Hz区域,以PPS为内层,碳纤维为外层,玻璃微珠质量分数为5%时蜂窝夹芯板隔声性能最优,平均提高5~8 dB。与目前时速350 km/h动车内采用的标准铝蜂窝夹芯板相比,芳纶蜂窝板不仅具有相近的隔声性能且能实现30%左右减重。因此,芳纶蜂窝夹芯板具有替代标准铝蜂窝成为高速列车新一代隔音地板的应用前景。
In order to meet the lightweight and sound insulation requiremenTSof bullet trains and automobiles,honeycomb sandwich composite structure made from various fibers were created.The influence of honeycomb core specifications(density and side length),panel materials(carbon fiber,glass fiber,polyphenylene sulfide(PPS))and glass microbeads modification on sound insulation performance was analyzed by hot pressing method and four-sensor impedance tube method.The resulTSshow that the sound insulation performance is improved with the increase of the density of the honeycomb core,but the side length of the honeycomb core has little effect on the sound insulation.In the region of 100-2500 Hz,the honeycomb sandwich panel with PPS as inner layer,carbon fiber as outer layer and glass beads content of 5%shows the best sound insulation,with an average improvement of 5-8 dB.Compared with the standard aluminum honeycomb sandwich panel used for the current 350 km/h motor vehicle,the aramid honeycomb panel not only exhibiTSsimilar sound insulation performance,but also can achieve about 30%weight reduction.It was concluded that the aramid honeycomb sandwich panel has the application potential for replacing the standard aluminum honeycomb as a new generation of sound insulation floor for bullet trains.
作者
胡侨乐
边国丰
邱夷平
魏毅
徐珍珍
HU Qiaole;BIAN Guofeng;QIU Yiping;WEI Yi;XU Zhenzhen(School of Textile and Garment,Anhui Polytechnic University,Wuhu,Anhui 241000;College of Textiles,Donghua University,Shanghai 201620,China;College of Textiles and Apparel,Quanzhou Normal University,Quanzhou,Fujian 362000,China;Center for Civil Aviation Composites,Donghua University,Shanghai 201620,China)
出处
《纺织学报》
EI
CAS
CSCD
北大核心
2021年第10期75-83,共9页
Journal of Textile Research
基金
安徽省纺织结构复合材料国际联合研究中心开放基金资助(2021ACTC10,Xjky2020049,2020YQQ043)。
