Voß, Arne and Handojo, Vega and Weiser, Christian and Niemann, Steffen (2020) Preparation of Loads and Aeroelastic Analyses of a High Altitude, Long Endurance, Solar Electric Aircraft. AEC2020 Aerospace Europe Conference, 25-28 February 2020, Bordeaux, France.
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Abstract
High altitude, long endurance aircraft can serve as platform for scientists to make observations of the earth over a long period of time. Staying airborne only by solar electric energy is, as of today, a challenge for the aircraft design and requires an extremely light weight structure at the edge of the physically possible. This paper focuses on the loads and aeroelastic aspects of such a configuration, discusses the selected strategies and presents the applied methods and tools, including the resulting models prepared for the HAPomega configuration currently under development at the DLR. Because of the structural flexibility and the slow speed of the aircraft, flight mechanical and flight control aspects interact with aeroelastics e.g. during a gust encounter, making a non-linear time domain simulation necessary. Both maneuver and gust loads are used for the structural sizing and result in a very light and slender airframe with very low eigenfrequencies.
Item URL in elib: | https://elib.dlr.de/133496/ | ||||||||||||||||||||
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Document Type: | Conference or Workshop Item (Poster) | ||||||||||||||||||||
Title: | Preparation of Loads and Aeroelastic Analyses of a High Altitude, Long Endurance, Solar Electric Aircraft | ||||||||||||||||||||
Authors: |
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Date: | 25 February 2020 | ||||||||||||||||||||
Refereed publication: | Yes | ||||||||||||||||||||
Open Access: | Yes | ||||||||||||||||||||
Gold Open Access: | No | ||||||||||||||||||||
In SCOPUS: | No | ||||||||||||||||||||
In ISI Web of Science: | No | ||||||||||||||||||||
Status: | Published | ||||||||||||||||||||
Keywords: | High altitude platform, HALE, Maneuver loads, gust loads, aeroelasticity, structural dynamics | ||||||||||||||||||||
Event Title: | AEC2020 Aerospace Europe Conference | ||||||||||||||||||||
Event Location: | Bordeaux, France | ||||||||||||||||||||
Event Type: | international Conference | ||||||||||||||||||||
Event Dates: | 25-28 February 2020 | ||||||||||||||||||||
Organizer: | CEAS and 3AF | ||||||||||||||||||||
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 (old) | ||||||||||||||||||||
Location: | Göttingen | ||||||||||||||||||||
Institutes and Institutions: | Institute of Aeroelasticity > Loads Analysis and Aeroelastic Design Institute of System Dynamics and Control > Aircraft System Dynamics Institute of Composite Structures and Adaptive Systems > Functional Lightweight Structures | ||||||||||||||||||||
Deposited By: | Voß, Arne | ||||||||||||||||||||
Deposited On: | 14 Apr 2020 07:31 | ||||||||||||||||||||
Last Modified: | 09 Oct 2023 08:57 |
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