可变弯度机翼后缘形态重构光纤监测技术

于惠勇; 李华峰; 曾捷; 徐志伟; 黄继伟; 赵启迪

doi:10.7527/S1000-6893.2020.23808

航空学报 >

2020 , Vol. 41 >Issue 10: 223808 - 223808

DOI: https://doi.org/10.7527/S1000-6893.2020.23808

固体力学与飞行器总体设计

可变弯度机翼后缘形态重构光纤监测技术

于惠勇 ,
李华峰 ,
曾捷 ,
徐志伟 ,
黄继伟 ,
赵启迪

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1. 南京航空航天大学机械结构力学及控制国家重点实验室, 南京 210016;
2. 北京长城计量测试技术研究所计量与校准技术重点实验室, 北京 100095

收稿日期: 2020-01-07

修回日期: 2020-03-10

网络出版日期: 2020-03-06

基金资助

航空科学基金（20170252004，20185644006）；上海航天科技创新基金（SAST2018-015）；江苏省重点研发计划-产业前瞻与共性关键技术-竞争项目（BE2018047）

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Monitoring technique for shape reconstruction of variable camber trailing edge based on optical fiber sensors

YU Huiyong ,
LI Huafeng ,
ZENG Jie ,
XU Zhiwei ,
HUANG Jiwei ,
ZHAO Qidi

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1. State Key Laboratory of Mechanics and Control of Mechanical Structures, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China;
2. Science and Technology on Metrology and Calibration Laboratory, Changcheng Institute of Metrology and Measurement, Beijing 100095, China

Received date: 2020-01-07

Revised date: 2020-03-10

Online published: 2020-03-06

Supported by

Aeronautical Science Foundation of China (20170252004,20185644006); Shanghai Aerospace Science and Technology Innovation Fund (SAST2018-015); Jiangsu Provincial Key Research and Development Plan-Industry Foresight and Common Key Technology-Competitive Project (BE2018047)

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摘要

可变弯度机翼是一种变翼型变体飞行器，在飞行过程中可根据不同的飞行环境自适应调整机翼弯度来提高飞行效率，从而适应复杂多样的任务环境。针对可变弯度机翼后缘形态与偏转角度实时监测需求，研究了一种基于光纤布拉格光栅传感器的机翼后缘形态重构方法。采用数值仿真方法分析可变弯度机翼后缘的形态变化特征，得到可变弯度机翼后缘偏转位移与偏转角度之间关系。给出光纤布拉格光栅传感器布局形式，构建了基于应变和曲率信息递推位移重构原理的机翼后缘形态和偏转角度监测系统。基于光纤布拉格光栅传感器的机翼后缘形态重构相对误差约为6.39%，偏转角度辨识相对误差约为7.47%。研究结果表明，所提方法能够为可变弯度机翼后缘形态感知、姿态自适应调整以及气动外形优化提供技术支撑。

关键词： 可变弯度机翼后缘; 光纤布拉格光栅传感器; 曲率递推方法; 形态重构; 偏转角度

本文引用格式

于惠勇 , 李华峰 , 曾捷 , 徐志伟 , 黄继伟 , 赵启迪 . 可变弯度机翼后缘形态重构光纤监测技术[J]. 航空学报, 2020 , 41(10) : 223808 -223808 . DOI: 10.7527/S1000-6893.2020.23808

Abstract

The variable camber wing as a variable-wing aircraft can be adaptively adjusted according to different flight environments to improve its flight efficiency, thereby adapting to complex and diverse mission environments. This paper studies a trailing-edge morphological reconstruction method based on distributed fiber Bragg grating sensors to meet the demand for real-time monitoring of the morphology and deflection of the variable camber trailing edge. In addition, numerical simulation is employed to analyze the morphological changes of the variable camber trailing edge, whence obtaining the relationship between the deflection displacement and the deflection of the variable camber trailing edge. Meanwhile, the layout form of the fiber Bragg grating sensor is presented, as well as the construction of the trailing-edge morphology and deflection monitoring system based on the reconstruction principle of recursive displacement of strain and curvature information. The relative error of trailing-edge morphological reconstruction based on the fiber Bragg grating sensor is about 6.39%, and that of deflection identification is about 7.47%. The research results show that the method proposed in this paper can provide technical support for morphology sensing, attitude adaptive adjustment and aerodynamic shape optimization of the variable camber trailing edge.

Key words： variable camber trailing edge; fiber Bragg grating sensors; curvature recursion method; morphological reconstruction; deflection

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