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Design of an automatic load positioning system for hoist operations

Kim, Hyun-Min (2017) Design of an automatic load positioning system for hoist operations. CEAS Aeronautical Journal, 8 (2), pp. 335-351. Springer. DOI: 10.1007/s13272-017-0241-8 ISSN 1869-5582

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Official URL: https://link.springer.com/article/10.1007/s13272-017-0241-8


The operation of a helicopter with an externally slung load is highly demanding for the flight crew. Without having a direct view on the load, the pilot needs assistance by a crew member for load handling, e.g., load positioning. During helicopter hoist operations (HHO), the hoist operator gives instructions to the pilot and stabilizes the load motion. An automatic load positioning system for HHO is designed with the aim to reduce the workload of the flight crew and to improve the load handling performance. The control system consists of a multiloop architecture that is designed using multi-objective optimization. The system was designed to achieve best performance in load positioning for the entire cable length range of the rescue hoist. Load positioning performance is a function of the cable length; faster automatic load positioning can be achieved with the shorter cable lengths. This paper describes the overall design process covering the tools, the control law architecture and optimization, and the validation using DLR's simulator.

Item URL in elib:https://elib.dlr.de/113419/
Document Type:Article
Title:Design of an automatic load positioning system for hoist operations
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Kim, Hyun-Minhyun-min.kim (at) dlr.deUNSPECIFIED
Date:26 March 2017
Journal or Publication Title:CEAS Aeronautical Journal
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
DOI :10.1007/s13272-017-0241-8
Page Range:pp. 335-351
Keywords:automatic flight control system, external load control, load positioning, helicopter hoist operations, HHO, rescue hoist, flight control system design
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
Deposited By: Kim, Hyun-Min
Deposited On:25 Jul 2017 16:32
Last Modified:06 Sep 2019 15:24

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