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一种高性能,灵敏,低成本的LIG/PDMS应变传感器,用于对复合结构中的冲击损伤监测和定位

Haojie Lu¹, Yuanyuan Feng², Shuo Wang³

¹College of Civil Aviation, Shenyang Aerospace University, Shenyang 110136, People's Republic of China.

|May 31, 2024

概括

一种新型的酸处理激光诱导石墨烯 (A-LIG) 传感器提高了飞机结构健康监测. 这种灵活的传感器提供100%的增强灵敏度和广泛的应变范围,以提高安全性.

科学领域:

材料科学材料科学材料科学
航空航天工程航空航天工程
传感器技术传感器技术

背景情况:

复合结构对于飞机的安全性和可靠性至关重要,但传统的监测方法存在局限性.
现有的传感器在复杂复合材料的监控区域,应变极限和信号处理方面遇到了困难.

研究的目的:

开发一个多功能灵活的传感器,用于先进的飞机结构健康监测.
通过提高灵敏度,菌株范围和信号处理来克服传统方法的局限性.

主要方法:

用3D导电网络制造一个酸处理的激光诱导石墨烯 (A-LIG) 传感器.
整合PDMS以提高疲劳性能和传感器耐用性.
开发数据转换算法,以可视化来自电信号的应变场.

主要成果:

与未经处理的LIG相比,A-LIG传感器的灵敏度增加了100%.
传感器表现出高灵敏度 (GF ≈ 387),低歇斯底里 (∼53 ms) 和广泛的工作范围 (高达 47%).
成功的应变传感通过对飞机机翼箱段的撞击测试来验证.

结论:

开发的A-LIG/PDMS传感器为飞机结构健康监测提供了一种具有成本效益,高度灵敏和强大的解决方案.
这种灵活的传感器技术为提高航空航天结构的安全性和可靠性提供了一个有希望的方向.
传感器的稳定性,可重复性和广泛的工作范围使其适用于真实世界的航空航天应用.

关键词:

损害局部化损害局部化灵活的传感器灵活的传感器激光诱导的石墨烯是一种激光.

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