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MULTI-FIDELITY WING MASS ESTIMATION BASED ON A CENTRAL MODEL APPROACH

MULTI-FIDELITY WING MASS ESTIMATION BASED ON A CENTRAL MODEL APPROACH. 71th Annual Conference SAWE 2012 D. Böhnke, F. Dorbath, B. Nagel, V. Gollnick Integrated Aircraft Design, DLR-LY.

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MULTI-FIDELITY WING MASS ESTIMATION BASED ON A CENTRAL MODEL APPROACH

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  1. MULTI-FIDELITY WING MASS ESTIMATION BASED ON A CENTRAL MODEL APPROACH 71th Annual Conference SAWE 2012 D. Böhnke, F. Dorbath, B. Nagel, V. Gollnick IntegratedAircraft Design, DLR-LY

  2. …derive a new method for determination of the wing weight that features the quality of a physic based model but is still as easy and quick to evaluate as a handbook method… SAWE 2012 > Daniel Böhnke > 09.05.2012

  3. Design Environment • Multi-Fidelity • Trade Study • Results • Conclusion SAWE 2012 > Daniel Böhnke > 09.05.2012

  4. Common Language Analysis Modules Engineering Framework SAWE 2012 > Daniel Böhnke > 09.05.2012

  5. Reduce No. of interfaces • Standardize • Product and process information • Human readable ►n(n-1) ►2n SAWE 2012 > Daniel Böhnke > 09.05.2012

  6. Requirements C P A C S Integration PESTwing VAMPzero Conceptual TRIMvl Initialization SAWE 2012 > Daniel Böhnke > 09.05.2012

  7. VAMPzero • Conceptual design • Handbook methods • Input • Design requirements • Wing characteristics • Output • Geometry • Structure • Processinformation SAWE 2012 > Daniel Böhnke > 09.05.2012

  8. TRIM VL • Specialised AVL • Input • Geometry • LoadCase • Weightandbalance • Output • Lift distribution SAWE 2012 > Daniel Böhnke > 09.05.2012

  9. PESTwing • Wing massestimation • Beam theory & statisticalextension • Inputs • Geometry • Structures • (Lift distribution) • Wing mass • Physicsbased • Analyticcorrections • Spars & skins • Secondarystructures SAWE 2012 > Daniel Böhnke > 09.05.2012

  10. Symbolic Regression SAWE 2012 > Daniel Böhnke > 09.05.2012

  11. SAWE 2012 > Daniel Böhnke > 09.05.2012

  12. SAWE 2012 > Daniel Böhnke > 09.05.2012

  13. Aspect Ratio SAWE 2012 > Daniel Böhnke > 09.05.2012

  14. mTOM SAWE 2012 > Daniel Böhnke > 09.05.2012

  15. Sweep SAWE 2012 > Daniel Böhnke > 09.05.2012

  16. Taper Ratio SAWE 2012 > Daniel Böhnke > 09.05.2012

  17. Thickness SAWE 2012 > Daniel Böhnke > 09.05.2012

  18. Deriving f() via Symbolic Regression • Real aircraft data • Eliminate influence on g() • Similar to Shevell’s approach SAWE 2012 > Daniel Böhnke > 09.05.2012

  19. SAWE 2012 > Daniel Böhnke > 09.05.2012

  20. Conclusion • Central model approach • Multi-Fidelity coupling • Determination of wing mass with physic based methods • Derivation of equations • Successful, but further work necessary SAWE 2012 > Daniel Böhnke > 09.05.2012

  21. Outlook • Physical modeling of secondary structures • Flaps • Aileron • Slats • Spoiler • Further eliminate statistical dependencies • Coping with lift distributions SAWE 2012 > Daniel Böhnke > 09.05.2012

  22. Thanks for your attention! SAWE 2012 > Daniel Böhnke > 09.05.2012

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