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Initial Flight Tests of an Automatic Slung Load Control System for the ACT/FHS

Kim, Hyun-Min and Nonnenmacher, Daniel and Götz, Joachim and Weber, Pascal and von Hinüber, Edgar and Knedlik, Stefan (2014) Initial Flight Tests of an Automatic Slung Load Control System for the ACT/FHS. In: Proceedings of the 40th European Rotorcraft Forum, 02.09.-05.09.2014 Southampton, UK. 40th European Rotorcraft Forum (ERF), 02.-05. Sept. 2014, Southampton, England.

Full text not available from this repository.

Abstract

An automatic slung load control system for the research helicopter ACT/FHS (Active Control Technology / Flying Helicopter Simulator) of the German Aerospace Center (DLR) has been developed and initially tested in flight. The external load is suspended from a rescue hoist which was mounted at the ACT/FHS for flight test purposes. For the load motion detection an optical-inertial sensor system was developed. The sensor system provides estimations of the cable length and cable angle as well as cable angle rates for the slung load control system. Flight testing of the sensor system proved that the optical marker is detected consistently and accurately for cable length up to 50 m. Furthermore, the estimated load motion signals can be used for the control system. To demonstrate the overall system’s functionality, an initial control system for damping of the pendulum load motion was designed and flight tested. The automatic function of the control system was effective in damping the load pendulum motion for a fixed cable length. Under piloted control the slung load damping system showed deficiencies. When actively controlling the helicopter, the pilot acted against the control system resulting in an adverse effect in load damping. Overall, for the first time, a slung load control system for a load suspended from a rescue hoist could be demonstrated successfully.

Item URL in elib:https://elib.dlr.de/90569/
Document Type:Conference or Workshop Item (Speech)
Title:Initial Flight Tests of an Automatic Slung Load Control System for the ACT/FHS
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Kim, Hyun-Minhyun-min.kim (at) dlr.deUNSPECIFIED
Nonnenmacher, DanielFT-HUBUNSPECIFIED
Götz, JoachimFT-HUBUNSPECIFIED
Weber, PascaliMAR Navigation GmbHUNSPECIFIED
von Hinüber, EdgariMAR Navigation GmbHUNSPECIFIED
Knedlik, StefaniMAR Navigation GmbHUNSPECIFIED
Date:2 September 2014
Journal or Publication Title:Proceedings of the 40th European Rotorcraft Forum, 02.09.-05.09.2014 Southampton, UK
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:automatic slung load control ACT/FHS flight test
Event Title:40th European Rotorcraft Forum (ERF)
Event Location:Southampton, England
Event Type:international Conference
Event Dates:02.-05. Sept. 2014
Organizer:Royal Aeronautical Society
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:rotorcraft
DLR - Research area:Aeronautics
DLR - Program:L RR - Rotorcraft Research
DLR - Research theme (Project):L - The Innovative Rotorcraft
Location: Braunschweig
Institutes and Institutions:Institute of Flight Systems > Rotorcraft
Deposited By: Kim, Hyun-Min
Deposited On:07 Oct 2014 15:27
Last Modified:07 Oct 2014 15:27

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