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Baseline Flight Control System for High Altitude Long Endurance Aircraft

Weiser, Christian and Ossmann, Daniel (2022) Baseline Flight Control System for High Altitude Long Endurance Aircraft. AIAA SciTech Forum 2022, 03.-07. Jan. 2022, San Diego, USA. doi: 10.2514/6.2022-1390.

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Abstract

High Altitude Long Endurance (HALE) aircraft consist of extremely light-weight structuresin combination with a high wingspan and high aspect ratio. The coupling of these propertiesresults in a dynamic behavior of the aircraft system which is different to classical transport orunmanned aircraft configurations. The key finding in the analysis of the dynamic behavior ofthe aeroelasticHALEaircraft is a strong interaction of structural and rigid body eigenmodes.This leads to challenges in the design of a robust flight control algorithm for the full flightenvelope with state-of-the-art techniques. This work addresses these difficulties and proposes ageneric design process which can be used to develop flight control algorithms forHALEaircraft.The design process starts with the definition of specific performance and robustness criteriaforHALEflight control laws which emerge from the combination of general aircraft designstandards with the limitations and capabilities of theHALEconfiguration. Subsequently, again-scheduled, fixed structure control design architecture is proposed. The inner loop controldesign is enriched with envelope protection functionalities. The design process concludes withan extensive validation and verification process to clear the baseline flight control system forflight testing. The proposed design process is applied to the German Aerospace Center’s newlydeveloped HALE platform.

Item URL in elib:https://elib.dlr.de/145535/
Document Type:Conference or Workshop Item (Speech)
Title:Baseline Flight Control System for High Altitude Long Endurance Aircraft
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Weiser, ChristianChristian.Weiser (at) dlr.dehttps://orcid.org/0000-0002-2968-6961
Ossmann, Danieldaniel.ossmann (at) hm.eduUNSPECIFIED
Date:January 2022
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
DOI :10.2514/6.2022-1390
Status:Published
Keywords:Flight Control, High Altitude Long Endurance Aircraft, HAP
Event Title:AIAA SciTech Forum 2022
Event Location:San Diego, USA
Event Type:international Conference
Event Dates:03.-07. Jan. 2022
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Components and Systems
DLR - Research area:Aeronautics
DLR - Program:L CS - Components and Systems
DLR - Research theme (Project):L - Aircraft Systems
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of System Dynamics and Control > Aircraft System Dynamics
Deposited By: Weiser, Christian
Deposited On:13 Jan 2022 10:26
Last Modified:14 Jan 2022 14:32

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