航空科学技术2024，Vol.35Issue(5)：101-109,9.DOI:10.19452/j.issn1007-5453.2024.05.009
基于三节点逆元法与光纤传感器的机翼形态重构方法
Reconstruction Method of Wing Shape Based on Three-node Inverse Finite Element Method and Optical Fiber Sensor
摘要
Abstract
The shape reconstruction technology of aircraft wing structure based on strain information can provide data support for the aerodynamic shape,aeroelastic characteristics and stealth performance control of'bionic wing'.In order to realize the deformation monitoring of aircraft wings,this paper proposes a morphological reconstruction method based on three-node inverse finite element method and strain information acquisition,and gives the corresponding layout form of optical frequency domain reflective(OFDR)distributed optical fiber sensor.Firstly,a simplified model of aircraft wing is constructed,and the simulation verification of morphological reconstruction method based on finite element analysis results is carried out.Secondly,an experimental system for strain monitoring and shape reconstruction of simplified wing model based on distributed optical fiber sensor is constructed.The results show that the average relative error of the shape reconstruction of the simplified wing model is about 4.01%under the natural droop condition.Under the combined bending and torsion conditions,the average relative error of the shape reconstruction of the simplified wing model is about 6.34%.Therefore,the method proposed in this paper is suitable for aircraft wing deformation monitoring under different load conditions,which can provide help for morphing wing shape control and airborne conformal antenna phase compensation.关键词
逆有限元法/机翼简化模型/光频域反射型/分布式光纤传感器/形态重构Key words
inverse finite element method/simplified wing model/OFDR/distributed optical fiber sensor/morphological reconstruction引用本文复制引用
岳应萍,赵悦琦,曾捷,王志刚,杨宇..基于三节点逆元法与光纤传感器的机翼形态重构方法[J].航空科学技术,2024,35(5):101-109,9.基金项目
国家自然科学基金(52275536,62273179) （52275536,62273179）
航空科学基金(20200009023017,20220028052002) （20200009023017,20220028052002）
直升机旋翼动力学国家级重点实验室基金(61422202207) National Natural Science Foundation of China(52275536,62273179) （61422202207）
Aeronautical Science Foundation of China(20200009023017,20220028052002) （20200009023017,20220028052002）
Helicopter Rotor Dynamics National Key Laboratory Fundation(61422202207) （61422202207）
