纺织学报 ›› 2021, Vol. 42 ›› Issue (10): 75-83.doi: 10.13475/j.fzxb.20210107009

• 纺织工程 • 上一篇    下一篇

高速列车地板用蜂窝夹芯结构复合材料隔声性能

胡侨乐1, 边国丰2, 邱夷平2,3, 魏毅2,4, 徐珍珍1()   

  1. 1.安徽工程大学 纺织服装学院, 安徽 芜湖 241000
    2.东华大学 纺织学院,上海 201620
    3.泉州师范大学 纺织服装学院, 福建 泉州 362000
    4.东华大学 东华大学民用航空复合材料协同创新中心, 上海 201620
  • 收稿日期:2021-01-27 修回日期:2021-06-27 出版日期:2021-10-15 发布日期:2021-10-29
  • 通讯作者: 徐珍珍
  • 作者简介:胡侨乐(1990—),男,讲师,博士。主要研究方向为复合材料结构设计及性能研究。
  • 基金资助:
    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);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(Xjky2020049);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(2020YQQ043)

Sound insulation properties of honeycomb sandwich structure composite for high-speed train floors

HU Qiaole1, BIAN Guofeng2, QIU Yiping2,3, WEI Yi2,4, XU Zhenzhen1()   

  1. 1. School of Textile and Garment, Anhui Polytechnic University, Wuhu, Anhui 241000
    2. College of Textiles,Donghua University, Shanghai 201620, China
    3. College of Textiles and Apparel, Quanzhou Normal University, Quanzhou, Fujian 362000, China
    4. Center for Civil Aviation Composites, Donghua University, Shanghai 201620, China
  • Received:2021-01-27 Revised:2021-06-27 Published:2021-10-15 Online:2021-10-29
  • Contact: XU Zhenzhen

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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100~2 500 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。

关键词: 芳纶蜂窝板, 预浸料, 玻璃微珠, 隔声性能, 轨道交通地板, 复合材料

Abstract:

In order to meet the lightweight and sound insulation requirements of 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 results show 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 exhibits similar 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.

Key words: aramid honeycomb sandwich, prepreg, glass bead, sound insulation property, rail vehicle floor

中图分类号: 

  • TB332

表1

面板材料基本参数"

材料 织物组织 面密度/(g·m-2) 树脂含量/% 厚度/mm 剪切强度/MPa 弯曲强度/MPa 弯曲模量/GPa
C 斜纹 200 50 0.33 — 850 45
G 缎纹 300 40 0.35 49 507 130
P 非织造布 255 65 0.78 — 130 4

表2

芳纶蜂窝芯材参数"

编号 蜂窝类别
(ACT1-A-B)		 厚度/
mm		 密度/
(kg·m-3)		 压缩强度/
MPa		 剪切强度/MPa 剪切模量/MPa
纵向 横向 纵向 横向
1# ACT1-4.8-48 20±0.15 48±0.15 3.1 1.1 0.6 42.4 26.8
2# ACT1-3.2-48 20±0.15 48±0.15 2.3 1.2 0.6 51.0 23.6
3# ACT1-3.2-72 20±0.15 72±0.15 5.6 2.8 1.7 79.3 44.0

图1

蜂窝夹芯板示意图"

表3

不同蜂窝芯边长及密度的芳纶蜂窝夹芯板基本参数"

蜂窝夹芯
板名称		 蜂窝
类别		 面板厚
度/mm		 蜂窝芯厚
度/mm		 蜂窝夹芯
板质量/g
C/C-1 0.71 20.83 12.7
G/G-1 ACT1-4.8-48 0.69 21.10 15.2
P-1 0.85 21.13 13.2
C/C-2 0.73 20.84 12.3
G/G-2 ACT1-3.2-48 0.73 21.06 14.3
P-2 0.82 20.96 12.4
C/C-3 0.72 21.10 18.6
G/G-3 ACT1-3.2-72 0.71 21.05 15.1
P-3 0.81 21.36 16.1

表4

3#不同面板材料的蜂窝夹芯板基本参数"

蜂窝夹芯板
结构(m/n)		 面板厚
度/mm		 蜂窝芯
厚度/mm		 蜂窝夹芯
板质量/g
C/C-3 0.71 21.05 15.1
G/G-3 0.72 21.10 18.6
P-3 0.81 21.36 16.1
C/P 1.12 21.67 16.8
P/C 1.14 21.64 16.9
G/P 1.12 21.85 20.4
P/G 1.15 21.96 20.8

图2

蜂窝夹芯板隔声原理及测试装置"

图3

蜂窝芯边长对隔声性能的影响"

图4

蜂窝芯密度对隔声性能的影响"

表5

不同因素对蜂窝板隔声量的影响"

类别 平均隔声量/dB 蜂窝芯边长影响/dB 蜂窝芯密度影响/dB 面板材料影响/dB
C/C-1 42.0 ??C/C-1 - C/C-2??=0.3 ??C/C-3 - C/C-1??=0.5 ??C/C-1 - G/G-1??=0
C/C-2 41.7 ??C/C-2 - G/G-2??=0.2
C/C-3 42.5 ??C/C-3 - G/G-3??=0.8
G/G-1 42.0 ??G/G-1 - G/G-2??=0.5 ??G/G-3 - G/G-1??=1.3 ?? G/G-1 - P-1??=0.1
G/G-2 41.5 ?? G/G-2 - P-2??=0.7
G/G-3 43.3 ?? G/G-3 - P-3??=0.4
P-1 42.1 ??P-1 - P-2??=0.1 ??P-3 - P-1??=1.6 ?? P-1 - C/C-1??=0.1
P-2 42.2 ?? P-2 - C/C-2??=0.5
P-3 43.7 ?? P-3 - C/C-3??=1.2
均值 — 0.3 1.13 0.44

图5

面板材料对隔声性能的影响"

图6

改性混合面板对隔声性能的影响"

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