碳纤维复合材料电流分布特性仿真与试验研究

复合材料科学与工程 ›› 2020, Vol. 0 ›› Issue (11): 37-41.

碳纤维复合材料电流分布特性仿真与试验研究

阮巍¹, 段泽民^1,2,3, 司晓亮^2,3, 李志宝^2,3

1.合肥工业大学电气与自动化工程学院,合肥230009;
2.强电磁环境防护技术航空科技重点实验室,合肥230031;
3.飞机雷电防护安徽省重点实验室,合肥230031

收稿日期:2020-01-07 出版日期:2020-11-28 发布日期:2020-11-28
作者简介:阮巍(1994-),男,硕士研究生,主要研究方向为飞行器雷电防护,523549802@qq.com。本文作者还有仇善良^2,3,张松^2,3。
基金资助:
装备预研联合基金资助项目(6141B05030302);民用飞机专项科研项目(MJ-2015-H-G-103)

SIMULATION AND EXPERIMENTAL STUDY ON CURRENT DISTRIBUTION CHARACTERISTICS OF CARBON FIBER COMPOSITES

RUAN Wei^1*, DUAN Ze-min^1,2,3, SI Xiao-liang^2,3, LI Zhi-bao^2,3

1. School of Electrical and Automation Engineering, Hefei University of Technology, Hefei 230009, China;
2. Aviation Science and Technology Key Laboratory of Strong ElectromagneticEnvironment Protection Technology, Hefei 230031, China;
3. Anhui Provincial Aircraft Lightning Protection Laboratory, Hefei 230031, China

Received:2020-01-07 Online:2020-11-28 Published:2020-11-28

摘要/Abstract

摘要： 碳纤维复合材料(CFRP)的电导率具有各向异性,在雷电注入下,其电流分布与传统金属材料不同。为探究CFRP板电流分布特性,本文利用多物理场电磁仿真软件建立CFRP板缩比雷电流注入模型,依据电流密度仿真结果开展电流注入试验,采集不同方向的电流波形。结果表明:以峰值电流较小的波形注入时,对于无防护CFRP板,沿着表层纤维排布方向的电流峰值大于表面垂直和厚度方向电流峰值,各方向电流波形与注入波形基本一致,且峰值电流随着注入电流峰值线性增长;铜网防护下,CFRP板厚度方向的电流峰值远小于表面其他方向电流峰值;铝板则表现为厚度方向的电流峰值大于表面其他方向电流峰值。

关键词: 各向异性, 电导率, CFRP, 电流密度, 电流波形, 复合材料

Abstract: The electrical conductivity of carbon fiber composites (CFRP) is anisotropic, which has different current distribution characteristics from traditional metal materials in lightning injection. With a multiphysics electromagnetic simulation software, a CFRP reduced lightening current injection model is established to explore the current distribution characteristics of CFRP. Based on the current density simulation results, a current injection test is performed to collect current waveforms in different directions. The results show that for the CFRP board which is unprotected, the current peak along the surface fiber arrangement direction is greater than the surface vertical and thickness direction when injected with a waveform with a smaller peak current. The current waveform in all directions is close to the injection waveform, and the peak current increases linearly with the peak value of the injection current. Under the protection of copper mesh, the current peak in the thickness direction of the CFRP board is much smaller than in other directions on the surface. The aluminum board shows that the current peak in the thickness direction is greater than in other directions on the surface.

Key words: anisotropy, electrical conductivity, CFRP, current density, current waveform, composites

中图分类号:

TB332

阮巍, 段泽民, 司晓亮, 李志宝. 碳纤维复合材料电流分布特性仿真与试验研究[J]. 复合材料科学与工程, 2020, 0(11): 37-41.

RUAN Wei, DUAN Ze-min, SI Xiao-liang, LI Zhi-bao. SIMULATION AND EXPERIMENTAL STUDY ON CURRENT DISTRIBUTION CHARACTERISTICS OF CARBON FIBER COMPOSITES[J]. Composites Science and Engineering, 2020, 0(11): 37-41.

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