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Automated Measurment of Backlash and Stiffness in Electro-Mechanical Flight Control Actuation

Schallert, Christian and Kowalski, Robert and Rottach, Michael and Dorkel, Andre (2018) Automated Measurment of Backlash and Stiffness in Electro-Mechanical Flight Control Actuation. Recent Advances in Aerospace Actuation Systems and Components, 2018-05-30 - 2018-06-01, Toulouse, Frankreich.

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Official URL: https://r3asc18.sciencesconf.org/resource/page/id/15


Electro-mechanical actuation of primary flight control surfaces is expected to increase the efficiency of future commercial aircraft. More specifically, the effort and cost of manufacture and maintenance will be reduced due to the omission of hydraulic supply and actuation systems. However, backlash is inherent to electro-mechanical actuation, whereas it does not occur in conventional hydraulic servo-actuation. Due to wear, backlash increases over the lifetime. With regard to electro-mechanical actuation of primary flight control surfaces, excessive backlash can cause detrimental effects such as limit cycle oscillations or, as a worst case, lead to jamming. Therefore, efficient and simple-to-deploy methods for monitoring backlash are sought after. This paper describes time domain methods for automated measurement of backlash and stiffness that use available sensor signals of an electro-mechanical aileron actuation system. So far, feasibility of the methods has been verified by experiments on appropriate test benches.

Item URL in elib:https://elib.dlr.de/123521/
Document Type:Conference or Workshop Item (Speech)
Title:Automated Measurment of Backlash and Stiffness in Electro-Mechanical Flight Control Actuation
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Schallert, ChristianUNSPECIFIEDhttps://orcid.org/0009-0001-7309-9959UNSPECIFIED
Kowalski, RobertUNSPECIFIEDhttps://orcid.org/0000-0002-5458-3796149027430
Date:30 May 2018
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:No
Page Range:pp. 103-108
EditorsEmailEditor's ORCID iDORCID Put Code
Keywords:automated measurement, backlash, electro-mechanical actuation, primary flight control, stiffness
Event Title:Recent Advances in Aerospace Actuation Systems and Components
Event Location:Toulouse, Frankreich
Event Type:international Conference
Event Start Date:30 May 2018
Event End Date:1 June 2018
Organizer:INSA Toulouse, TU Hamburg-Harburg
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:fixed-wing aircraft
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Systems and Cabin (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of System Dynamics and Control > Aircraft System Dynamics
Institute of Flight Systems > Safety Critical Systems&Systems Engineering
Deposited By: Schallert, Christian
Deposited On:22 Nov 2018 14:50
Last Modified:24 Apr 2024 20:27

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