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VAST - Flexible Aeromechanics Simulation Platform for Helicopters

Hofmann, Johannes and Röhrig-Zöllner, Melven and Weiß, Felix Armin and Lojewski, Reinhard and Rieser, Jasper and Mindt, Maximilian and Gatter, Alexander and Schmierer, Lukas and Klitz, Margrit and Thangavel, Shaktivel (2018) VAST - Flexible Aeromechanics Simulation Platform for Helicopters. 67. Deutscher Luft- und Raumfahrtkongress, 04.-06. Sept. 2018, Friedrichshafen.

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In the DLR-Project VicToria (Virtual Aircraft Technology Integration Platform, 7/2016 – 12/2019) the basis of VAST is being developed. Halfway through the project a prototype version exists that clearly demonstrates the potential of the approach pursued here. This paper describes the concept and goals of the code and shows results of the current development version (see Fig. 1). The principal idea is a coupled system of models that are expressed as state-space models (See Fig. 1) ẋ = F(u,x,t) with the implicit system of coupling equations y = G(u,x,t) being automatically resolved. This approach allows generic methods for solving the system to be developed unlike many other codes in the field which require highly specialized solution procedures and are thus rigid to change. The logic for the model interconnection is kept completely outside of the simulation code and computed as a prestep. The basis of physical models is taken from existing research codes like S4 and the FT-Freewake [2] as well as implementation of proven numerical models like a dynamic wake model [3] and its recent extensions. The structural dynamics is calculated using an internal structural model using rigid multi body dynamics as well as an adaptive coupling to SIMPACK building on [4]. First applications to the free flying helicopter and the wind tunnel case are shown and discussed

Item URL in elib:https://elib.dlr.de/139866/
Document Type:Conference or Workshop Item (Speech)
Title:VAST - Flexible Aeromechanics Simulation Platform for Helicopters
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Hofmann, JohannesJohannes.Hofmann (at) dlr.deUNSPECIFIED
Röhrig-Zöllner, MelvenMelven.Roehrig-Zoellner (at) dlr.dehttps://orcid.org/0000-0001-9851-5886
Weiß, Felix ArminFelix.Weiss (at) dlr.deUNSPECIFIED
Lojewski, ReinhardReinhard.Lojewski (at) dlr.deUNSPECIFIED
Mindt, MaximilianMaximilian.Mindt (at) dlr.deUNSPECIFIED
Gatter, AlexanderAlexander.Gatter (at) dlr.deUNSPECIFIED
Schmierer, LukasLukas.Schmierer (at) dlr.dehttps://orcid.org/0000-0001-6399-4899
Klitz, MargritMargrit.Klitz (at) dlr.deUNSPECIFIED
Thangavel, ShaktivelDLRUNSPECIFIED
Date:4 September 2018
Refereed publication:No
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Keywords:Rotorcraft Simulation, Comprehensive Code, Multibody Simulation
Event Title:67. Deutscher Luft- und Raumfahrtkongress
Event Location:Friedrichshafen
Event Type:national Conference
Event Dates:04.-06. Sept. 2018
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:fixed-wing aircraft
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - VicToria (old)
Location: Braunschweig
Institutes and Institutions:Institute of Flight Systems
Institut of Simulation and Software Technology > High Performance Computing
Deposited By: Hofmann, Johannes
Deposited On:06 Jan 2021 08:40
Last Modified:06 Jan 2021 08:40

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