PANDORA - A python based framework for modelling and structural sizing of transport aircraft
Michael Petsch,Dieter Kohlgrüber,Jörg Heubischl +2 more
- 21 Nov 2018
- Vol. 233, pp 00013
TL;DR: The current state of the PANDORA development is presented and initial applications are shown.
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Abstract: Over the last years a multidisciplinary aircraft predesign process chain was established at the DLR, including different numerical tools for the modelling and structural sizing of fuselage structures. To improve the flexibility and performance of this structural analysis part in the MDO process a new tool development has been started in 2016 called "Parametric Numerical Design and Optimization Routines for Aircraft" (PANDORA). The PANDORA framework is using the interpreted high-level programming language Python and is focused on using dedicated open-source packages. Within PANDORA a lot of new packages have been implemented, like a new interface to access CPACS data, a python based FE pre- and postprocessor, a FE data converter to build an interface between PANDORA and different FE solver and a visualization interface using "The Visualization Toolkit" (VTK). Some further packages to generate a FE model based on a CPACS file using the geometry core "Open Cascade" (OCC) and a new FE sizing algorithm is also under development. To simplify the usage of PANDORA and to keep it comprehensible - a graphical user interface (GUI) has been added using the PYQT toolkit. In this paper the current state of the PANDORA development is presented and initial applications are shown.
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Citations
High-Fidelity-based MDO: A Closer Look at the Selected Sub-Processes Overall Aircraft Design Synthesis, Loads Analysis, and Structural Optimization
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TL;DR: The cybermatrix protocol is presented from its formal mathematical background to actual on-disk implementation of a running process, a novel approach to multidisciplinary design optimization in the contex of many involved disciplinary experts and high use of high-performance computing resources.
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Julian Scherer,Dieter Kohlgrüber,Felix Dorbath,Maged Sorour +3 more
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TL;DR: In this article, a tool chain consisting of two model generators, a coupling module, a loads module for the computation of aerodynamic, fuel, landing gear and engine loads as well as a structural analysis and sizing algorithm is presented.
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