NEFS - New Track integrated Electrical Single Flap Drive System

Expected project results:

• new functionalities of the high lift system via differential flap setting (DFS), like accelerated vortex decay, roll trim and roll control support,
• reducing operational interruptions caused by high lift systems by at least 15%,
• improving the drive system efficiency by at least 25%,
• 2% - 3% L/D improvement in cruise,
• 20% weight reduction of the flap track beam due to highly integrated composite design,
• 5% cost reduction in the manufacturing and assembly of the flap track beam due to the minimised number of parts,
• improved maintainability,
• reduced installation effort (for design and manufacturing).

The main challenge in developing this new track integrated single flap drive system is to realize a fault tolerant redundant drive system in the very limited space of the track with no weight penalty on the system and a significant weight reduction on the flap support structure compared to a state-of-the-art system. This can only be achieved in an interdisciplinary system-structure approach with experienced partners, capable to develop structural solutions according to aviation standards.

DAAS team is responsible for one of the work packages that main objective is to evaluate the functions and performance of an aircraft equipped with differential flap system (DFS) and to develop a comprehensive model of an aircraft with integrated model of differential flap system. Expected work results are development of model system architecture, model elements, models integration, implementation of diagnostic functions and failure simulation. Differential flap system will be integrated with aircraft model developed by one of the consortium partners. Results will be used by partners that design system and execute laboratory tests.

www.nefs.eu

NEFS is a research project funded under 6th Framework Programme of the European Union. NEFS Consortium consists of 13 partners with budget 6.1 million euro.