Sub-Project 7 for Installation
SP7 evaluates the impact of installing a high-bypass-ratio engine under the wing.
Objectives
• Improve Nacelle Weight of Very High Bypass Ratio (VHBR) Engines
• Optimise VHBR Engines installation
• Make feasible for VHBR Engines, the reuse of Low Noise Nozzle concepts from SILENCE®
Challenge
Approach
• In VITAL SP7, two low noise nozzle concepts will be tested, in order to understand engine/wing interactions
• Improvement of nacelle weight will be carried out mainly through thrust reverser system weight improvement
• These two WP will be used to optimise engine underwing installation
• These improvements will be quantified (noise and consumption) on aircraft missions
Expected results
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- Sub-Project 1 for whole engine assessment
- SP1 oversees the technical unity of the other sub-projects, and is in charge of design for each of the three engine architectures.
- Sub-Project 2 for Fan modules
- SP2 tests new fan module concepts and measures their aero-acoustic performance (contra-fan or lightweight fan).
- Sub-Project 3 for Booster
- SP3 evaluates the slow and high-speed booster (low-pressure compressors) concepts applicable to the different configurations.
- Sub-Project 4 for Structures
- SP4 focuses on new lightweight structural material (Hot and cold structures form the engine " back bone"). They provide basic engine stiffness and transfer high mechanical loads to and from the engine interior. Therefore the structures contributes to 15 - 20% of the engine weight.
- Sub-Project 5 for Low pressure shaft
- SP5 tests new concepts for a low-pressure shaft (which has to handle higher torque loads because of the slower fan speed). (Source : Brochure)
- Sub-Project 6 for Low pressure turbine
- SP6 seeks to identify new, lighter and quieter turbine concepts.