WING REFLECTOMETRY
In-Flight Monitoring of Wing Surface with Quasi tangential Reflectometry and Shadow Casting
| Coordinatore | FTI ENGINEERING NETWORK GMBH
Organization address
address: DAHLEWITZ LUDWIG ERHARD RING 8 contact info |
| Nazionalità Coordinatore | Germany [DE] |
| Totale costo | 642˙800 € |
| EC contributo | 482˙100 € |
| Programma | FP7-JTI
Specific Programme "Cooperation": Joint Technology Initiatives |
| Code Call | SP1-JTI-CS-2010-05 |
| Funding Scheme | JTI-CS |
| Anno di inizio | 2011 |
| Periodo (anno-mese-giorno) | 2011-02-24 - 2013-12-23 |
Partecipanti
| # | ||||
|---|---|---|---|---|
| 1 |
FTI ENGINEERING NETWORK GMBH
Organization address
address: DAHLEWITZ LUDWIG ERHARD RING 8 contact info |
DE (BLANKENFELDE MAHLOW) | coordinator | 482˙100.00 |
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Obiettivo del progetto (Objective)
Wing wavyness will be measured with low angle (quasi tangential) reflectometry an steps will be measured with digital Photogrammetry on casted shadows. The combination of both methods allows dynamic in-flight with no influence on the aerodynamic caracteristics of the wing
Introduzione (Teaser)
EU researchers are developing a system to measure the surface deformation of an aircraft's wing in flight. It will help monitor new aircraft with laminar flow wings for reduced drag and fuel consumption.
Descrizione progetto (Article)
As part of the Clean Sky research programme, a consortium of aerospace companies has designed a new laminar flow wing. However, its application on commercial aircraft requires the minimum degradation of the wing surface during flight. This is because any disturbance such as waviness, steps and insect debris could trigger turbulent conditions, thus cancelling out the benefits of laminar flow. To support this aeronautic development, a measurement system is required that can detect any deformation of a laminar flow wing profile in flight.
Developing such a system is the aim of the 'In-flight monitoring of wing surface with quasi tangential reflectometry and shadow casting' (WING REFLECTOMETRY) project, funded by the EU. This optical system will be able to measure, in flight, minute disturbances in the designed wing shape at high altitude and subsonic cruising speeds.
Project members will measure wing waviness using low-angle or quasi-tangential reflectometry, while surface steps will be measured with digital photogrammetry on casted shadows. The combination of both methods allows for dynamic in-flight measurement without influencing the aerodynamic characteristics of the wing.
The concept was proven during the project's two test campaigns. To date, WING REFLECTOMETRY has developed and almost finalised the system architecture and location of the system components, such as cameras, illumination and controller.
Furthermore, a full-scale wing mock-up has been constructed and test results have shown that reflectometry is not only a viable solution but it also offers accuracy significantly better than that required. Further project work will complete the system's development and validate its operation.