基于多通道传感器的变曲率结构变形反演系统

doi:10.19936/j.cnki.2096-8000.20251028.002

复合材料科学与工程 ›› 2025, Vol. 0 ›› Issue (10): 6-12.DOI: 10.19936/j.cnki.2096-8000.20251028.002

基于多通道传感器的变曲率结构变形反演系统

王天潇, 李旭阳, 郭晓岗^*

北京理工大学先进结构技术研究院,北京 100081

收稿日期:2025-07-04 出版日期:2025-10-28 发布日期:2025-12-02
通讯作者: 郭晓岗(1987—),男,博士,教授,博士生导师,研究方向为智能材料与结构力学、柔性传感与应用,guoxg@bit.edu.cn。
作者简介:王天潇(2001—),男,硕士研究生,研究方向为柔性传感与应用。

A multi-channel sensor-based system for inverting the deformation of variable curvature structures

WANG Tianxiao, LI Xuyang, GUO Xiaogang^*

Institute of Advanced Structural Technology, Beijing Institute of Technology, Beijing 100081, China

Received:2025-07-04 Online:2025-10-28 Published:2025-12-02

摘要/Abstract

摘要： 碳纤维复合材料的大范围应用对变形监测技术提出了更高的需求,当前常用的非接触式/接触式变形监测技术难以同时满足全局变形监测和实时性需求。本文在Ko理论的基础上,结合应变传感器的工作原理构建了连续弯曲变形反演理论框架,并通过空间圆弧插补方法,得到反应变形特征的可视化曲线。结合变形反演理论的应用需求,开发了多通道传感器,传感器集成了7个传感单元和一体式可插拔金手指接口。其中,单独的传感单元具有可与商用应变片媲美的传感性能,采用多通道传感器测量不同几何尺寸的圆环,证明了传感结果的曲率半径误差小于2.5%。最后,采用变形反演系统对模拟机翼后缘的变形状态进行了测试,反演结果与实际变形结果展现出高度的一致性。

关键词: 变形反演方法, 电阻式应变传感器, 多通道传感器, 变体机翼后缘, 复合材料变形监测

Abstract: The extensive application of carbon fiber composite materials has put forward higher demands on deformation monitoring technology. The current commonly used non-contact/contact deformation monitoring technologies are difficult to simultaneously meet the requirements of global deformation monitoring and real-time performance. Based on the Ko theory, this paper combines the working principle of strain sensors to construct a continuous bending deformation inversion theoretical framework. Through the spatial circular arc interpolation method, a visualization curve reflecting the deformation characteristics is obtained. In combination with the application requirements of the deformation inversion theory, a multi-channel sensor is developed. The sensor integrates 7 sensing units and an integrated plug-in gold finger interface. Each individual sensing unit has sensing performance comparable to commercial strain gauges. The measurement of circular rings with different geometric dimensions using the multi-channel sensor proves that the curvature radius error of the sensing results is less than 2.5%. Finally, the deformation inversion system is used to test the deformation states of the simulated wing trailing edge structure. The inversion results show a high degree of consistency with the actual deformation results.

Key words: deformation inversion method, resistive strain sensor, multi-channel sensor, morphing trailing edge, composite material deformation monitoring

中图分类号:

TB332

王天潇, 李旭阳, 郭晓岗. 基于多通道传感器的变曲率结构变形反演系统[J]. 复合材料科学与工程, 2025, 0(10): 6-12.

WANG Tianxiao, LI Xuyang, GUO Xiaogang. A multi-channel sensor-based system for inverting the deformation of variable curvature structures[J]. COMPOSITES SCIENCE AND ENGINEERING, 2025, 0(10): 6-12.

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基于多通道传感器的变曲率结构变形反演系统

A multi-channel sensor-based system for inverting the deformation of variable curvature structures

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