Signal direction recognition of composite plate under low velocity impact based on optical fiber sensing technology

LU Guan; XU Yi-ming; QIU Zi-xue; LIANG Da-kai; DENG Yong; YUAN Jiang

doi:10.13873/j.1000-97872013.12.034

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Signal direction recognition of composite plate under low velocity impact based on optical fiber sensing technology

更新时间：2025-09-11

- Signal direction recognition of composite plate under low velocity impact based on optical fiber sensing technology
- Vol. 32, Issue 12, Pages: 90-92+96(2013)
- 作者机构：
  
  1. 南通大学机械工程学院
  2. 江苏华宇印涂设备集团有限公司
  3. 南京航空航天大学智能材料与结构航空科技重点实验室
- 作者简介：
- 基金信息：
- DOI：10.13873/j.1000-97872013.12.034
  CLC： TP212.9
- Published：2013
- 稿件说明：
移动端阅览
[1]陆观,徐一鸣,邱自学,梁大开,邓勇,袁江.基于光纤传感技术的复合材料板低速冲击信号方向判别[J].传感器与微系统,2013,32(12):90-92+96.

LU Guan, XU Yi-ming, QIU Zi-xue, et al. Signal direction recognition of composite plate under low velocity impact based on optical fiber sensing technology[J]. 2013, 32(12): 90-92+96.
[1]陆观,徐一鸣,邱自学,梁大开,邓勇,袁江.基于光纤传感技术的复合材料板低速冲击信号方向判别[J].传感器与微系统,2013,32(12):90-92+96. DOI： 10.13873/j.1000-97872013.12.034.

LU Guan, XU Yi-ming, QIU Zi-xue, et al. Signal direction recognition of composite plate under low velocity impact based on optical fiber sensing technology[J]. 2013, 32(12): 90-92+96. DOI： 10.13873/j.1000-97872013.12.034.

摘要

为了准确识别复合材料板低速冲击信号

搭建了基于光纤Bragg光栅（FBG）传感器应变敏感特性的复合材料板冲击监测系统

分析了基于经验模态分解（EMD）的冲击信号特征提取方法

研究了基于信号特征提取的冲击信号方向判别。通过试验监测了在距离相等的情况下与传感器轴向角度为0°

15°

30°

45°

60°

75°

90°方向的冲击信号

分析得出冲击信号方向与EMD所得特征值呈余弦关系。结果表明:利用光纤传感技术和EMD法可精确判别低速冲击信号方向。

Abstract

In order to discriminate signals under low velocity impact of composite plate accurately

an impact monitoring system for composite plate based on strain sensitive characteristic of fiber Bragg grating（ FBG） sensor is established

feature extraction method for impact signals

based on empirical mode decomposition（ EMD） is analyzed

and direction discrimination method for impact signal based on signal feature extraction is researched.The experiment is conducted to monitor the impact signals with angles of 0°

15°

30°

45°

60°

75°and 90° to the sensor axial direction in equal distance

and obtain the cosine relationship between impact signal directions and EMD characteristics value. The experimental results show that using FBG technology and EMD method can recognize accurately signal direction under low velocity impact.

关键词

Keywords

references

Damage monitoring of CFRP stiffened panels under compressive load using FBG sensors [J] . Shin-ichi Takeda,Yuichiro Aoki,Yosuke Nagao. Composite Structures . 2011 (3)

High-speed internal strain measurements in composite structures under dynamic load using embedded FBG sensors [J] . Composite Structures . 2010 (8)

Application of the EMD method in the vibration analysis of ball bearings [J] . Qiuhua Du,Shunian Yang. Mechanical Systems and Signal Processing . 2007 (6)

Evaluating impact damage in CFRP using fibre optic sensors [J] . A.R. Chambers,M.C. Mowlem,L. Dokos. Composites Science and Technology . 2006 (6)

The finite element analysis of composite laminates and shell structures subjected to low velocity impact [J] . Shiuh-Chuan Her,Yu-Cheng Liang. Composite Structures . 2004 (1)

Post-impact fatigue damage growth in fiber–metal laminates [J] . J.F Laliberté,C Poon,P.V Straznicky,A Fahr. International Journal of Fatigue . 2002 (2)

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