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Dynamics analysis of tethered unmanned rotorcraft

Donkels, Alexander and Dauer, Johann C. and Paley, Derek A. (2023) Dynamics analysis of tethered unmanned rotorcraft. In: AIAA SciTech 2023 Forum. AIAA SciTech Forum, 2023-01-23 - 2023-01-27, National Harbor, MD, USA.

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Abstract

Naval aviators use tethers to assist rotorcraft during ship board landing because of the ability to increase robustness against wind turbulence and to center the rotorcraft on the landing spot. Autonomous tethered landing with unmanned rotorcraft and automatic winch device for applying the tether force requires the knowledge of how the tether force impacts the wind affected dynamics of the rotorcraft. To this day, the influences of applied tether force and wind velocity on robustness and stability of the rotorcraft have been little explored. In this paper, we present an analysis of the dynamics and stability of a nonlinear model of a small-scale tethered rotorcraft. We develop a simplified model of a rotorcraft’s longitudinal dynamics and vary model parameters including tether force, trim conditions, and the horizontal wind in order to study the interdependence of those parameters and their impact on the model’s equilibrium points and stability. This is a preliminary step towards design of an automatic control of an unmanned rotorcraft capable of autonomous tethered landing and development of tether force control laws for the winch device.

Item URL in elib:https://elib.dlr.de/194432/
Document Type:Conference or Workshop Item (Speech)
Title:Dynamics analysis of tethered unmanned rotorcraft
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Donkels, AlexanderUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Dauer, Johann C.UNSPECIFIEDhttps://orcid.org/0000-0002-8287-2376UNSPECIFIED
Paley, Derek A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Date:2023
Journal or Publication Title:AIAA SciTech 2023 Forum
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:Hubschrauber, Helicopter, Drohne, Drone, Tether, Seil, Schiffsdecklandung
Event Title:AIAA SciTech Forum
Event Location:National Harbor, MD, USA
Event Type:international Conference
Event Start Date:23 January 2023
Event End Date:27 January 2023
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 - Unmanned Aerial Systems
Location: Braunschweig
Institutes and Institutions:Institute of Flight Systems
Institute of Flight Systems > Unmanned Aircraft
Deposited By: Donkels, Alexander
Deposited On:30 Jan 2024 17:10
Last Modified:24 Apr 2024 20:55

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