Smart Fixed Wing Aircraft Integrated Technology Demonstrator (SFWA-ITD): New Wing Concepts
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1 Aerodays 2011 conference CleanSky Scenarios for 2020: Conceptual Aircraft Smart Fixed Wing Aircraft Integrated Technology Demonstrator (SFWA-ITD): New Wing Concepts Madrid, 30. March 01. April 2010 J. Koenig (Airbus)
2 New Wing Concepts Presentation Content Introduction SFWA-ITD key objectives; The SFWA-ITD Smart Wing Potentials and Challenges for the Smart Wing Strategy and programme to mature the Smart Wing in CleanSky Conclusion
3 New Wing Concepts Presentation Content Introduction SFWA-ITD key objectives; The SFWA-ITD Smart Wing Potentials and Challenges for the Smart Wing Strategy and programme to mature the Smart Wing in CleanSky Conclusion
4 SFWA-ITD organisation and setup
5 SFWA-ITD participants and global shares ITD-Leaders Associate Partners Airbus SAAB Dassault EADS-CASA Thales Fraunhofer SAFRAN Rolls-Royce DLR ONERA INCAS NL-Cluster QinetiQ RUAG Aernnova 25% of Total Budget Partner participation based on Call for Proposals CfP 50% of Total Budget 25% of Total Budget 393M Total Budget
6 Mature technologies to achieve ACARE ambitious targets 50% cut in CO2 emissions Aircraft manufacturers 20-25% Engine manufacturers 15-20% Operations 5-10% Air Traffic Management Technologies are key towards ACARE targets, but can only deploy their benefits through smart integration ACARE: Advisory Council for Aeronautics Research in Europe
7 New Wing Concepts Presentation Content Introduction SFWA-ITD key objectives; The SFWA-ITD Smart Wing Potentials and Challenges for the Smart Wing Strategy and programme to mature the Smart Wing in CleanSky Conclusion
8 Key Smart Fixed Wing Aircraft technologies Innovative Powerplant Integration Technology Integration Input connecting to: SAGE ITD CROR engine SGO Systems for Green Operation Large Scale Flight Demonstration Impact of airframe flow field on Propeller design (acoustic, aerodynamic, vibration) Impact of open rotor configuration on airframe (Certification capabilities, structure, vibrations...) Innovative empennage design Smart Wing Technologies Technology Development Technology Integration Large Scale Flight Demonstration Natural Laminar Flow (NLF) Hybrid Laminar Flow (HLF) Active and passive load control Novel enabling materials Innovative manufacturing scheme Output providing data to: TE SFWA technologies for a Green ATS
9 Aerodynamic drag reduction through laminar flow Schematic Representation V at boundary-layer V at boundary-layer edge edge
10 SFWA- High Speed Demonstrator Passive (HSDP) The BLADE Demonstrator Smart Passive Laminar Flow Wing Design of an all new natural laminar wing Proof of natural laminar wing concept in wind tunnel tests Use of novel materials and structural concepts Exploitation of structural and system integration together with tight tolerance / high quality manufacturing methods in a large scale ground test demonstrator Large scale flight test demonstration of the laminar wing in operational conditions Port wing Laminar wing structure concept Option 2 Starboard wing Laminar wing structure concept Option 1
11 Laminar flow flight demonstrations Aerodynamic design feasible and high performance possible but Key for introduction of laminar technology is High surface quality Avoidance of insect contamination Simplified suction system
12 New Wing Concepts Presentation Content Introduction SFWA-ITD key objectives; The SFWA-ITD Smart Wing Potentials and Challenges for the Smart Wing Strategy and programme to mature the Smart Wing in CleanSky Conclusion
13 Major aerodynamic challenges 1. Linear stability theory with determination of limiting amplification factors (N factor) in the relevant environment (wind tunnel; free flight) is a principle requirement for the aerodynamic design of laminar surfaces. Ma-Variation 2. Finding the best compromise between sweep, extent of laminar flow, Ma-flexibility and robustness of wing design against surface imperfections is the biggest challenge for definition of best compromise on aircraft level. smooth flow step laminar laminar Transition moves forward 3. Prediction of effect of surface imperfection (steps, waviness, roughness, 3D disturbances) on laminar flow at the relevant conditions and boundary layer stability situation and their sensitivities is the major element for definition of acceptable structure concept.
14 Overview about Major Wind Tunnel Testing N-TS Flight ETW Performance model in ETW N-Factor limit calibration with TELFONA pathfinder model N-CF Adjustable leading edge step TSP coating rel.xtr movement step Re number Testing at flight Re number & similar BL stability Test in KRG: Pressure: bar, Temp: Cryo
15 Laminar Wing surface quality issues Major constraint for any laminar wing concept is high surface quality: No steps or steps with very limited step height Reduced waviness (either from manufacturing or deformation under cruise loads) Avoidance of any 3D disturbances (by insects or fasteners) Reduced roughness at the leading edge (either from manufacturing or erosion under operational conditions) Waviness 3D disturbances Erosion This has to be achieved under typical production standards (high rate, low costs) to be beneficial on aircraft level!
16 New Wing Concepts Presentation Content Introduction SFWA-ITD key objectives; The SFWA-ITD Smart Wing Potentials and Challenges for the Smart Wing Strategy and programme to mature the Smart Wing in CleanSky Conclusion
17 Aeronautics priority R&T in CleanSky Major Objective: Demonstrate the feasibility of a structure concept enabling laminar flow Laminar wing A Representation of laminar Wing on A340 flying test bed
18 Operational Challenges insect debris Laminar wing part insect impact on surface Critical case with direct transition Critical case with reduced transition Insect debris not critical minor effect on transition Krueger shielding Shielding effect Anti-contamination coating
19 Laminar Wing Structure Options & Valiadtion NLF wing section joint Examples of two upper cover options Leading edge with joint to box Continuous surface Other options under investigation downselection process Validation on A340 FTD Validation by specific ground tests
20 Main Components of the BLADE Smart Wing demonstrator NLF Wings preliminary design completed in December 2010 Full design update following outer wing planform change to ensure compatibility with A340 inner wing. Very good collaboration among all partners, including partners selected in CFP call #4.
21 The Integrated Smart Wing Upper Cover Concept (SAAB concept) Test/Trial Panel A test/trial panel has been manufactured and is used for several purposes, i.e. evaluation design concepts, tooling, surface measurement etc. 2 m 2 m Complexity The panel combines several advanced design principles into an fully integrated solution, cocured in one step. Fulfilling very challenging requirements regarding surface quality Sub spar Stringer Spar Cap Rib feet
22 Smart Wing flight test instrumentation A A Extend of laminar flow Representation of laminar Wing on A340 flying test bed Smart Wing observation camera view angle from potential observer pod position (Airbus) B (ONERA) D Infrared Image of laminar turbulent flow transition on wing surface (ONERA) E Flush mount hot film sensor for the detection of flow separation (ONERA) C
23 SFWA-ITD Flight Demonstrator Schedule High Speed Demonstrator Passive (HSDP) Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Prel. Design PDR Detailed Design TS SFWA NLF-W 3 4 CDR Manufacturing 1 A/C Chantier Ground tests TRL - Scale Flight Test Main objectives in year 2011 April 2011: Release Final Aerodynamic shape Mid 2011: Details of all interfaces of wing components and test aircraft are defined, the structural layout observation pod aircraft fuselage is defined December 2011: Critical Design Review Launch further workpackages with CfP Partners in CleanSky Calls#7, #8 and #9.
24 Analyse turbulence V289 VENTZ (M/S) P-F REAL PART TIME (S) 2009/ Outils CS Smart Wing for Year 2020 Business - Jet Smart Flaps Natural Laminar Flow Wing Kp Structures and systems integration for innovative Wing x Leading Edge Coating Krueger Flaps for laminar wing Load and vibration alleviation High Aspect Ratio Slide 24
25 New Wing Concepts Presentation Content Introduction SFWA-ITD key objectives; The SFWA-ITD Smart Wing Potentials and Challenges for the Smart Wing Strategy and programme to mature the Smart Wing in CleanSky Conclusion
26 New Wing Concepts Additional Subjects Additional major R&T subjects in progress in SFWA to contribute to the Smart Wing Maneouvre and Gust load control schemes to meeting tailored for the smart wing, including higher frequency modes Advanced high lift systems, able to enable a high degree of laminarity wing geometry and surfaces. This includes passive (high performance flap) and active flow control concepts. A new class of laminar wing manufacturing and assembly concepts, enabling high ramp up, high production rates at required high quality, explicitly surface quality. Repair and maintenance concepts for the smart wing, especially the parts / areas in which tolerances and qualities have to meet NLF- laminarity requirements Maturing the HLFC Hybrid laminar smart wing concept based on NLF knowledge gains
27 Summary Laminar flow has a high potential for drag reduction The SFWA- Airframer have build up experience with laminar flow within several projects together with other R&T partners Key element for introduction of laminar flow is a structure concept enabling sufficient surface quality at acceptable costs and production rates Best compromise between aerodynamic optimum and structure constraints is important for overall benefit All major operation constraints have to be considered in fuel planning and performance guaranties The A340 flight test demonstration with representation of major elements of a future laminar wing will be the most important step for application of such a technology in the future
28 New Wing Concepts 2008 by the CleanSky Leading Partners: Airbus, AgustaWestland, Alenia Aeronautica, Dassault Aviation, EADS-CASA, Eurocopter, Fraunhofer Institute, Liebherr-Aerospace, Rolls-Royce, Saab AB, Safran Thales and the European Commission. Permission to copy, store electronically, or disseminate this presen-tation is hereby granted freely provided the source is recognized. No rights to modify the presentation are granted.
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