基于光纤布拉格光栅的复合材料振动性能研究与损伤监测

玻璃钢/复合材料 ›› 2017, Vol. 0 ›› Issue (8): 15-19.

基于光纤布拉格光栅的复合材料振动性能研究与损伤监测

张春峰¹, 文晓艳², 张东生², 陈肖²

1.武汉理工大学理学院,武汉430070;
2.武汉理工大学光纤传感技术国家工程实验室,武汉430070

收稿日期:2016-11-22 出版日期:2017-08-28 发布日期:2017-08-28
作者简介:张春峰(1992-),男,硕士研究生,主要从事光纤传感技术及其工程应用方面的研究,15871686463@163.com。
基金资助:
国家自然科学基金(61307099)

STUDY ON VIBRATION PERFORMANCE AND DAMAGING DETECTION OF COMPOSITE MATERIALS BASED ON FBG

ZHANG Chun-feng¹, WEN Xiao-yan², ZHANG Dong-sheng², CHEN Xiao²

1.School of Science, Wuhan University of Technology, Wuhan 430070, China;
2.National Engineering Laboratory of Fiber Optic Sensing Technology, Wuhan University of Technology, Wuhan 430070, China

Received:2016-11-22 Online:2017-08-28 Published:2017-08-28

摘要/Abstract

摘要： 采用光纤布拉格光栅(FBG)对碳纤维增强复合材料(CFRP)的振动性能和损伤类型进行研究。采用落球击打碳纤维增强复合材料悬臂梁自由端,使复合材料悬臂梁产生谐振。通过测量复合材料悬臂梁的谐振频率,计算其阻尼损耗因子,得到无损伤碳纤维复合材料的振动性能。在此基础上,对碳纤维增强复合材料人为引入损伤,利用FBG测量其损伤状态下的谐振频率,依据谐振频率分析判断损伤类型。研究结果可对碳纤维增强复合材料的振动性能研究和损伤监测提供参考。

关键词: 碳纤维增强复合材料, 光纤布拉格光栅, 振动, 损伤监测

Abstract: In this paper, the vibration performance and damage types of carbon fiber composite materials were investigated based on FBG sensing technology. The free end of a carbon fiber composite cantilever beam was hit by a falling ball to generate a resonance in the cantilever. The resonance frequency was measured and the damping loss factor was calculated based on the vibration characteristic of the carbon fiber composite. Then, a man-made damage (a small hole) was introduced into the cantilever and the resonance frequency was measured again. The result was compared with the frequency without damage, so that the damage type could be judged. Finally, the results of the research will provide a reference to the study of the vibration performance and damage monitoring of carbon fiber composite materials.

Key words: carbon fiber composite materials, FBG, vibration, damage detection

中图分类号:

TB332

张春峰, 文晓艳, 张东生, 陈肖. 基于光纤布拉格光栅的复合材料振动性能研究与损伤监测[J]. 玻璃钢/复合材料, 2017, 0(8): 15-19.

ZHANG Chun-feng, WEN Xiao-yan, ZHANG Dong-sheng, CHEN Xiao. STUDY ON VIBRATION PERFORMANCE AND DAMAGING DETECTION OF COMPOSITE MATERIALS BASED ON FBG[J]. Fiber Reinforced Plastics/Composites, 2017, 0(8): 15-19.

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