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A Knowledge Based Approach for Automated Modelling of Extended Wing Structures in Preliminary Aircraft Design

Dorbath, Felix and Nagel, Björn and Gollnick, Volker (2011) A Knowledge Based Approach for Automated Modelling of Extended Wing Structures in Preliminary Aircraft Design. DLRK 2011, 27.-29. September 2011, Bremen, Deutschland.

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Abstract

This paper introduces the concept of the ELWIS model generator for Finite Element models of aircraft wing structures. The physical modelling of the structure is extended beyond the wing primary structures, to increase the level of accuracy for aircraft which diverge from existing configurations. Also the impact of novel high lift technologies on structural masses can be captured already in the early stages of design by using the ELWIS models. The ELWIS model generator is able to create structural ANSYS Finite Element and Multi Body Simulation models of the following components: the wing box, the wing fixed trailing edge including flap tracks, the wing movable trailing edge (flaps and ailerons), the spoilers, the engine pylon and the main landing gear, if attached to the wing. In order to enable trade studies on configurational level, the high number of required design parameters for the 3D model is derived from a minimal set of input parameters by making use of knowledge patterns for the individual components and technologies. A robust, CAD-free method is employed leading to model generation times which are well suited for preliminary design. This paper focuses on the generation of the structural models as one component of a wide MDO approach for overall aircraft design.

Document Type:Conference or Workshop Item (Paper)
Title:A Knowledge Based Approach for Automated Modelling of Extended Wing Structures in Preliminary Aircraft Design
Authors:
AuthorsInstitution or Email of Authors
Dorbath, FelixLY-ILE
Nagel, BjörnLY-ILE
Gollnick, VolkerLY
Date:2011
Keywords:wing structure, knowledge based, modelling, finite elements, high lift
Event Title:DLRK 2011
Event Location:Bremen, Deutschland
Event Type:national Conference
Event Dates:27.-29. September 2011
Organizer:DGLR
HGF - Research field:other
HGF - Program:other
HGF - Program Themes:other
DLR - Research area:no assignement
DLR - Program:no assignment
DLR - Research theme (Project):other
Location: Hamburg
Institutes and Institutions:Lufttransportsysteme > Integrierter Luftfahrzeugentwurf
Deposited By: Felix Dorbath
Deposited On:27 Feb 2012 08:15
Last Modified:13 Mar 2013 11:03

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