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Multibody Modelling of a UHBR Engine and Its Influence on the Dynamics of an Aircraft Wing

Schmalz, Martin and Hennings, Holger (2020) Multibody Modelling of a UHBR Engine and Its Influence on the Dynamics of an Aircraft Wing. In: Fundamentals of High Lift for Future Civil Aircraft Notes on Numerical Fluid Mechanics and Multidisciplinary Design, 145. Springer, Cham. pp. 349-364. doi: 10.1007/978-3-030-52429-6_22. ISBN 978-3-030-52428-9. ISSN 1612-2909.

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Official URL: https://link.springer.com/chapter/10.1007%2F978-3-030-52429-6_22


A multibody modelling in SIMPACK of an ultra high bypass ratio (UHBR) engine is presented in this article. In this context, a hybrid approach is used: all rotor components of the engine are created as finite element models in ANSYS Mechanical and are then transferred as model order reduced bodies into the multibody environment. It is thereby possible to account for flexibility and consequently for phenomena such as gyroscopic moments. Multibody simulations are conducted with the UHBR engine model attached to a flexible wing model. The angular momentum of the engine is varied in order to achieve a change of the gyroscopic moments and to assess their influence on the wing dynamics. In that regard, the results revealed a strong gyroscopic coupling between wing and UHBR engine. As a consequence, it can be stated that gyroscopics should not be neglected in the design process of an aircraft.

Item URL in elib:https://elib.dlr.de/139627/
Document Type:Contribution to a Collection
Title:Multibody Modelling of a UHBR Engine and Its Influence on the Dynamics of an Aircraft Wing
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Schmalz, MartinMartin.Schmalz (at) dlr.deUNSPECIFIED
Hennings, HolgerHolger.Hennings (at) dlr.deUNSPECIFIED
Date:18 October 2020
Journal or Publication Title:Fundamentals of High Lift for Future Civil Aircraft
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
DOI :10.1007/978-3-030-52429-6_22
Page Range:pp. 349-364
EditorsEmailEditor's ORCID iD
Radespiel, RolfTU BraunschweigUNSPECIFIED
Semaan, RichardTU BraunschweigUNSPECIFIED
Publisher:Springer, Cham
Series Name:Notes on Numerical Fluid Mechanics and Multidisciplinary Design
Keywords:UHBR engine, multibody simulation, gyroscopic moments, gyroscopic coupling
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 - Simulation and Validation (old)
Location: Göttingen
Institutes and Institutions:Institute of Aeroelasticity > Aeroelastic Simulation
Deposited By: Schmalz, Martin
Deposited On:21 Dec 2020 09:55
Last Modified:23 Feb 2022 11:20

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