Descrizione del progetto
Miglioramento delle strutture alari di controllo del flusso laminare ibrido con resistenza aerodinamica ridotta
Controllare il flusso d’aria attorno a un aeromobile rendendo tale flusso laminare può ridurre il consumo di carburante e abbassare le emissioni fino al 10 %. Nel dimostratore di controllo del flusso laminare ibrido (HLFC, Hybrid Laminar Flow Control) di Clean Sky, parte del flusso d’aria turbolento intorno all’aereo viene aspirata attraverso microperforazioni sul suo rivestimento, creando un flusso aerodinamico più stabile. Per ridurre la complessità dell’HLFC e controllare l’aspirazione, Clean Sky utilizza microperforazioni a passo variabile lungo il rivestimento esterno delle ali. Ciò consente un’integrazione molto più semplice dei sistemi HLFC all’interno dello spazio ridotto del bordo d’attacco. Il progetto MICROFORM, finanziato dall’UE, svilupperà un processo di formatura adatto per la produzione di strutture ad ala HLFC su scala reale realizzate con sottili fogli di titanio con microforatura a passo variabile. Inoltre, condurrà simulazioni per ridurre al minimo i costi iniziali di progettazione e produzione di queste grandi strutture.
Obiettivo
One of the main challenges on Hybrid Laminar Flow Control (HLFC) wing design, is to integrate the HLFC systems (vacuum chambers, pipes…etc.) inside the small space of the leading Edge, together with de-icing and high lift systems. Clean Sky 2 aims to reduce HLFC complexity by using variable pitch microperforations along the outer skin in order to control suctions without necessity of internal chambering. Variable microperforation entails a new challenge that must be investigated before deciding on the most suitable skin forming technology and material for new generation of HLFC demo structures, which will contribute to reduce 10% both fuel consumption and pollutant emissions in future aircrafts.
To achieve this goal, MICROFORM project will develop i) a suitable forming process for the real-scale manufacturing of leading edge HLFC wing outer skins and ii) supporting simulation tools to minimize initial process development costs of large structures composed by both constant and variable microperforation patterns meeting requested quality criteria and dimensional tolerances.
The achievement of these objectives will result in the following Key Exploitable Results:
− Material property data of microperforated Ti Gr 2 and Ti Gr 5.
− New knowledge about possibilities and limitations to form titanium microperforated sheets with variable patterns.
− Hot and stretch forming process parameters and conditions for aimed materials and geometries.
− Hot and stretch forming simulation tool.
− New knowledge about possibilities and limitations to reduce manufacturing costs of large forming tools.
The implementation of MICROFORM is carried out by a multidisciplinary consortium, formed by research and industrial entities who are experts in the development of simulation tools (LORTEK, HZG) and forming technologies (SOFITEC, FORMTECH) to manufacture small and large-scale demonstrators of microperforated titanium sheets for leading
Campo scientifico
- natural scienceschemical sciencesinorganic chemistrytransition metals
- engineering and technologymechanical engineeringvehicle engineeringaerospace engineeringaircraft
- natural sciencesphysical sciencesclassical mechanicsfluid mechanicsfluid dynamics
- engineering and technologyenvironmental engineeringenergy and fuels
- natural sciencescomputer and information sciencessoftwaresoftware applicationssimulation software
Parole chiave
Programma(i)
Argomento(i)
Meccanismo di finanziamento
IA - Innovation actionCoordinatore
20240 Ordizia
Spagna