Das Projekt "H2020-EU.3.4. - Societal Challenges - Smart, Green And Integrated Transport - (H2020-EU.3.4. - Gesellschaftliche Herausforderungen - Intelligenter, umweltfreundlicher und integrierter Verkehr), Optimisation of Friction Stir Welding (FSW) and Laser Beam Welding (LBW) for assembly of structural aircraft parts (OASIS)" wird/wurde gefördert durch: Kommission der Europäischen Gemeinschaften Brüssel. Es wird/wurde ausgeführt durch: TWI Limited.Riveting is the defacto method for the assembly of aluminium aerostructures, with large commercial aircraft fuselages typically containing 100'000s of rivets. However, riveting is known as a time-consuming, expensive and weight-adding operation. From a design perspective, it also places holes and point loads in a cyclically pressurised structure, subject to long-term fatigue loading and corrosion. Thus is not an ideal solution for these types of structures.
With developments in precision laser beam welding (LBW) and friction stir welding (FSW), it is now possible to fabricate 'rivetless' aluminium aerostructures using welding processes. These new processes produce a lighter weight, distributed load path with the potential for enhanced strength and structural stiffness, 'no holes' and a smoother (more aerodynamic) surface. In addition to being more structurally efficient, the new processes are cheaper and reduce inspection & maintenance requirements.
The OASIS project will establish and demonstrate the cost-effectiveness of manufacturing aluminium aircraft structures using the latest developments in LBW and FSW (with appropriate inspection to aerospace standards). The project is led by TWI, who are leaders in both LBW and FSW techniques. Together with 6 other European organisations, we will design, demonstrate and evaluate the suitability of a range of process variants in creating optimised aluminium aircraft structures, including appropriateness for emerging alloys (e.g. 3rd generation Al-Li, 2nd gen Scalmalloy®). ESAB who will offer a commercial route for adoption of suitable processes; as suppliers of both LBW and FSW solutions to the European aerospace supply-chain (and who hold unique FSW IP).
The impact of OASIS will ultimately allow improved design and manufacture of lighter-weight aluminium aircraft structures. This will contribute to the flightpath 2050 goals of reduced fuel burn, superior operating efficiencies and reduced emissions.
Das Projekt "H2020-EU.3.4. - Societal Challenges - Smart, Green And Integrated Transport - (H2020-EU.3.4. - Gesellschaftliche Herausforderungen - Intelligenter, umweltfreundlicher und integrierter Verkehr), Integration of Innovative Ice Protection Systems (I3PS)" wird/wurde gefördert durch: Kommission der Europäischen Gemeinschaften Brüssel. Es wird/wurde ausgeführt durch: Societe Nationale de Construction Aerospatiale Sonaca SA.This proposal fits within the framework of aircraft effectiveness constant improvement by reducing fuel and power consumptions. Its ultimate goal is to economically remove ice accreting on aircraft structure critical parts and thus increase reliability and mass saving on the global function. By comparison with the present existing solutions which are based on active pneumatic and electro-thermal means the targeted solutions will enable electrical power consumption, cost and mass reductions and ease the overall integration process.
The subject of this proposal is to integrate and test two innovative ice protection systems in aircraft structures. The first system is based on two-phase heat transport and will be tested in a turboprop metallic air intake. The second system is based on electromagnetic induction and will be tested on a wing fixed leading edge and on a flap leading edge.