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A Multi-Channel H_infinity Preview Control Approach to Load Alleviation Function Design

Khalil, Ahmed Khalil Ali and Fezans, Nicolas (2019) A Multi-Channel H_infinity Preview Control Approach to Load Alleviation Function Design. 5th CEAS Conference on Guidance, Navigation and Control (EuroGNC19), 3-5 Apr 2019, Milano, Italy.

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Official URL: https://controls.papercept.net/conferences/scripts/abstract.pl?ConfID=225&Number=14


Gust load alleviation functions are mainly designed for two objectives: first, alleviating the structural loads resulting from turbulence or gust encounter, and hence reducing the structural fatigue and/or reducing the structural weight; and second, enhancing the ride qualities, and hence the passengers' comfort. Whilst load alleviation functions can improve both aspects, the designer will still need to make design tradeoffs between these two objectives and between various types and locations of the structural loads. The possible emergence of affordable and reliable remote wind sensor techniques (e.g. Doppler LIDAR) in the future also leads to consider new types of load alleviation functions as these sensors would permit to anticipate the near future gusts and other types of turbulence. In this paper, we propose a preview control design methodology for the design of a load alleviation function with such anticipation capabilities based on recent advancements on discrete-time reduced-order multi-channel H_infinity techniques. The methodology is illustrated on the DLR Discus-2c flexible sailplane model.

Item URL in elib:https://elib.dlr.de/128625/
Document Type:Conference or Workshop Item (Speech)
Title:A Multi-Channel H_infinity Preview Control Approach to Load Alleviation Function Design
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Khalil, Ahmed Khalil AliAhmed.Khalil (at) dlr.dehttps://orcid.org/0000-0002-8291-7351
Fezans, NicolasNicolas.Fezans (at) dlr.dehttps://orcid.org/0000-0003-4351-3474
Date:3 April 2019
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:No
Keywords:gust load alleviation; active load alleviation; robust control; optimal control; preview control; flexible aircraft; multi-channel H_infinity; LIDAR
Event Title:5th CEAS Conference on Guidance, Navigation and Control (EuroGNC19)
Event Location:Milano, Italy
Event Type:international Conference
Event Dates:3-5 Apr 2019
HGF - Research field:other
HGF - Program:other
HGF - Program Themes:other
DLR - Research area:no assignment
DLR - Program:no assignment
DLR - Research theme (Project):no assignment
Location: Braunschweig
Institutes and Institutions:Institute of Flight Systems > Flight Dynamics and Simulation
Deposited By: Khalil, Ahmed
Deposited On:17 Sep 2019 11:43
Last Modified:17 Sep 2019 11:43

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