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Potential Estimation of Load Alleviation and Future Technologies in Reducing Aircraft Structural Mass

Handojo, Vega and Himisch, Jan and Bramsiepe, Kjell and Krüger, Wolf R. and Tichy, Lorenz (2022) Potential Estimation of Load Alleviation and Future Technologies in Reducing Aircraft Structural Mass. Aerospace, 9 (8). Multidisciplinary Digital Publishing Institute (MDPI). doi: 10.3390/aerospace9080412. ISSN 2226-4310.

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Official URL: https://www.mdpi.com/2226-4310/9/8/412


In recent years, load alleviation technologies have been more widely used in transport aircraft. For aircraft already in service, load alleviation can contribute in extending the fatigue life, or enable small configurational changes. If load alleviation is considered in the aircraft design process, the structural mass of the aircraft can be reduced. This paper investigates various maneuver and gust load alleviation algorithms as well as potential future technologies regarding flight operation, turbulence forecast and material science, and it evaluates the mass reduction that can be achieved. In doing so, a long-range transport aircraft was taken as the reference, and the considered load case conditions were 1-cos gusts, maneuvers and quasi-steady landing. Based upon the loads, the composite structure of the lifting surfaces was optimized, while the secondary masses as well as the wing planform were kept unchanged. With all technologies implemented, a reduction of the wing box mass by 26.5% or 4.4% of the operating empty mass could be achieved.

Item URL in elib:https://elib.dlr.de/187743/
Document Type:Article
Title:Potential Estimation of Load Alleviation and Future Technologies in Reducing Aircraft Structural Mass
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Handojo, VegaUNSPECIFIEDhttps://orcid.org/0000-0001-6030-2383UNSPECIFIED
Bramsiepe, KjellUNSPECIFIEDhttps://orcid.org/0000-0003-3351-8036UNSPECIFIED
Krüger, Wolf R.UNSPECIFIEDhttps://orcid.org/0000-0002-7949-1169UNSPECIFIED
Tichy, LorenzUNSPECIFIEDhttps://orcid.org/0000-0001-9092-5864UNSPECIFIED
Date:29 July 2022
Journal or Publication Title:Aerospace
Refereed publication:Yes
Open Access:Yes
Gold Open Access:Yes
In ISI Web of Science:Yes
Publisher:Multidisciplinary Digital Publishing Institute (MDPI)
Series Name:MDPI Aerospace
Keywords:load alleviation, loads analysis, structural optimization, aeroelasticity, aircraft design
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Efficient Vehicle
DLR - Research area:Aeronautics
DLR - Program:L EV - Efficient Vehicle
DLR - Research theme (Project):L - Aircraft Technologies and Integration
Location: Braunschweig , Göttingen
Institutes and Institutions:Institute of Aeroelasticity > Loads Analysis and Aeroelastic Design
Institute for Aerodynamics and Flow Technology > Transport Aircraft
Institute of Aeroelasticity > Administration AE
Deposited By: Handojo, Dr.-Ing. Vega
Deposited On:22 Aug 2022 15:08
Last Modified:26 Aug 2022 09:46

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