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Conceptual study for an autonomous rotorcraft for extreme altitudes

Barth, Aaron and Kondak, Konstantin and Hajek, Manfred (2014) Conceptual study for an autonomous rotorcraft for extreme altitudes. In: European Rotorcraft forum. European Rotorcraft Forum, Southampton.

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Abstract

This paper is devoted to lightweight rotary wing UAVs for applications at extreme high altitudes of up to 9000m, such as search and rescue as well as different types of environmental monitoring. Up to now, such rotary wing UAVs have not been available. Consequently, experience in design and operation of rotary wing UAVs in such environments is lacking. This situation motivates our team from DLR and TUM to work on an all-electric prototype of this kind of rotary wing UAV. The first experimental missions should be performed at altitudes of 5000 to 9000m above sea level. This paper shows the project’s current status and preliminary results. We present procedures for preliminary rotor designs and electrical power supplies as well as a tool developed for exploration of the influence of critical design parameters from a mission based point of view. Using the described procedures and the tool, we present the preliminary design of the UAV prototype, which is a synchropter with two counter-rotating and intermeshing rotors. Some of preliminary calculations were verified with flight experiments (hover performance) at different altitudes of up to 5200m above sea level. The results presented, illustrate the feasibility of developing rotary wing UAVs for selected applications at extremely high altitudes and will be the cornerstone for a detailed design of the first prototype.

Item URL in elib:https://elib.dlr.de/94536/
Document Type:Conference or Workshop Item (Speech)
Title:Conceptual study for an autonomous rotorcraft for extreme altitudes
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Barth, Aaronbarth (at) ht.mw.tum.deUNSPECIFIED
Kondak, Konstantinkonstantin.kondak (at) dlr.deUNSPECIFIED
Hajek, Manfredhajek (at) tum.deUNSPECIFIED
Date:2014
Journal or Publication Title:European Rotorcraft forum
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:high altitude helicopter, rotor design, UAV, rescue
Event Title:European Rotorcraft Forum
Event Location:Southampton
Event Type:international Conference
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Technology
DLR - Research area:Raumfahrt
DLR - Program:R SY - Technik für Raumfahrtsysteme
DLR - Research theme (Project):R - Vorhaben Weiterentwicklung Robotik - Mechatronik und Dynamik
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Robotics and Mechatronics (since 2013) > Mechatronic Components and Systems
Deposited By: Kondak, Konstantin
Deposited On:12 Jan 2015 18:41
Last Modified:12 Jan 2015 18:41

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