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Flexible Aircraft Modelling for Flight Loads Analysis of Wake Vortex Encounters

Mauermann, Tobias (2011) Flexible Aircraft Modelling for Flight Loads Analysis of Wake Vortex Encounters. Dissertation. DLR-Forschungsbericht.

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This report describes the development of an integral simulation model for flexible aircraft and its application to the flight loads analysis of wake vortex encounters of a large transport aircraft. The aerodynamic model consists of a databank containing the steady aerodynamic loading oft the quasi-flexible aircraft combined with an unsteady vortex lattice method for lifting surfaces and bodies. To improve accuracy and computational performance, a correction method based on steady reference data and an order reduction method are introduced. Aeroelastic coupling of the aeroelastic model to the structural model is achieved by a method based on finite interpolation beam elements. A parameterized wake vortex encounter is used to determine the loads-critical encounter type and to illustrate the impact of aircraft modeling on the obtained loads.

Item URL in elib:https://elib.dlr.de/75789/
Document Type:Monograph (DLR-Forschungsbericht, Dissertation)
Title:Flexible Aircraft Modelling for Flight Loads Analysis of Wake Vortex Encounters
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Number of Pages:190
Keywords:flexible aircraft, wake vortex encounter, flight loads, unsteady aierodynamics, vortex ring method, order reduction, integral model
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:other
DLR - Research area:Aeronautics
DLR - Program:L - no assignment
DLR - Research theme (Project):L - no assignment (old)
Location: Göttingen
Institutes and Institutions:Institute of Aeroelasticity
Deposited By: Erdmann, Daniela
Deposited On:13 Jun 2012 16:46
Last Modified:13 Jun 2012 16:46

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