WING REFLECTOMETRY

In-Flight Monitoring of Wing Surface with Quasi tangential Reflectometry and Shadow Casting

Coordinatore	FTI ENGINEERING NETWORK GMBH    more  Organization address address: DAHLEWITZ LUDWIG ERHARD RING 8 city: BLANKENFELDE MAHLOW postcode: 15827 contact info Titolo: Ms. Nome: Ute Cognome: Franke Email: send email Telefono: +49 33708 4409 24
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

#	participant	country	role	EC contrib. [€]
1	FTI ENGINEERING NETWORK GMBH  Organization address address: DAHLEWITZ LUDWIG ERHARD RING 8 city: BLANKENFELDE MAHLOW postcode: 15827 contact info Titolo: Ms. Nome: Ute Cognome: Franke Email: send email Telefono: +49 33708 4409 24	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.