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Gust Loads Calculation for a Flying Wing Configuration

Voß, Arne (2018) Gust Loads Calculation for a Flying Wing Configuration. In: 2018 Applied Aerodynamics Conference. AIAA AVIATION Forum 2018, 25.-29. Jun. 2018, Atlanta, GA (USA). DOI: 10.2514/6.2018-3326 ISBN 978-1-62410-559-3

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Official URL: https://arc.aiaa.org/doi/abs/10.2514/6.2018-3326

Abstract

This work presents results of dynamic 1-cos gust load simulations for a flying wing configuration. The in-house toolbox Loads Kernel is used for the loads analysis of the free flying aircraft. Flight mechanical characteristics are captured application of a non-linear equation of motion in the time domain. The underlying aerodynamic methods are the Vortex Lattice and the Doublet Lattice Method with a rational function approximation (RFA) for unsteady simulations in the time domain. The structural model was created using DLR's parametric ModGen/Nastran design process. The structure is optimized for minimum structural weight with typical design load cases including maneuver, gust and landing loads. In this paper, the focus lies on gust encounters and the flight characteristics of the MULDICON, which differs from classical configurations. It involves a pitching motion and a pronounced penetration effect when the aircraft enters the gust field. Finally, a flight controller is designed to increase the pitching stability. It is shown that the loads during a gust encounter increase moderately. The influence on the structural weight is small as the layout is very robust and the required material thickness is below the minimum thickness in most areas.

Item URL in elib:https://elib.dlr.de/120867/
Document Type:Conference or Workshop Item (Speech)
Title:Gust Loads Calculation for a Flying Wing Configuration
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Voß, ArneArne.Voss (at) dlr.dehttps://orcid.org/0000-0003-2266-7853
Date:25 June 2018
Journal or Publication Title:2018 Applied Aerodynamics Conference
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
DOI :10.2514/6.2018-3326
ISBN:978-1-62410-559-3
Status:Published
Keywords:flying wing, gust loads, structural optimization
Event Title:AIAA AVIATION Forum 2018
Event Location:Atlanta, GA (USA)
Event Type:international Conference
Event Dates:25.-29. Jun. 2018
Organizer:AIAA - American Institute of Aeronautics and Astronautics
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 - Flight Physics
Location: Göttingen
Institutes and Institutions:Institute of Aeroelasticity > Loads Analysis and Aeroelastic Design
Deposited By: Voß, Arne
Deposited On:23 Jul 2018 10:25
Last Modified:20 Nov 2018 15:58

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