| ZHANG Xingguo(张兴国)* **,HU Binghua**,WANG Yuanliang***,YAN Hui**,MA Xiaodong**,GE Quanbo****.[J].高技术通讯(英文),2023,29(3):257~268 |
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| In-flight deformation measurement for high-aspect-ratio wing based on 3D speckle correlation |
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| DOI：10. 3772/ j. issn. 1006-6748. 2023. 03. 004 |
| 中文关键词: |
| 英文关键词: high-aspect-ratio,three-dimensional (3D) speckle,wing datum |
| 基金项目: |
| Author Name | Affiliation | | ZHANG Xingguo(张兴国)* ** | (*School of Computing,Northwestern Polytechnical University,Xi′an 710072,P. R. China)
(**Test Technology Institute,Chinese Flight Test Establishment,Xi′an 710089,P. R. China)
(***School of Logistics Engineering,Shanghai Maritime University,Shanghai 201306,P. R. China)
(****College of Automation,Nanjing University of Information Science & Technology,Nanjing 210044,P. R. China) | | HU Binghua** | | | WANG Yuanliang*** | | | YAN Hui** | | | MA Xiaodong** | | | GE Quanbo**** | |
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| 中文摘要: |
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| 英文摘要: |
| In order to get an effective solution of the in-flight wing deformation measurement for high-wing aircrafts with high-aspect-ratio,a method based on three-dimensional (3D) speckle correlation technique is proposed. Firstly,an in-flight wing deformation measurement system with two sets of conjugate cameras is designed based on structural characteristics and test requirements of high-wing aircrafts with large-aspect-ratio. Secondly,the in-flight wing deformation measurement method based on 3D speckle correlation technique is introduced including three aspects: measuring system and wing datum calibration,speckle image matching and 3D reconstruction,and wing deformation analysis. Finally,ground simulation test of dynamic deformation measurement of a scaled model wing and flight test of dynamic deformation measurement of a large transport wing are carried out. The test results show that the measuring accuracy of single point coordinate in ground simulation test is better than 0. 1 mm/ m,in the airborne vibration environment,the static single-point positioning accuracy is better than 5 mm,and the in-flight wing deformation measurement data is well received by the flight test engineers. This method can satisfy the requirements of stability,reliability,high precision,non-contact and full-field measurement for dynamic deformation measurement of aircraft wing with high-aspect-ratio. |
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