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Preliminary Design of Hydraulic and Pneumatic System Architectures for a Morphing Flight Control Structure

Schäfer, Michael and Schäfer, Andreas and Bertram, Oliver (2019) Preliminary Design of Hydraulic and Pneumatic System Architectures for a Morphing Flight Control Structure. SAE Technical Papers. Society of Automotive Engineers (SAE) International. doi: 10.4271/2019-01-1916. ISSN 0148-7191.

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Official URL: https://www.sae.org/publications/technical-papers/content/2019-01-1916/


Bionics in aeronautics has the potential to increase the performance and efficiency of aircraft significantly. Inspired by the wings of birds, morphing wing structures have been extensively investigated over the last decades. The continuous adaption of the wings over a large scale of the flight envelope enables an optimization of the aerodynamic characteristics and, this way, a reduction of the fuel consumption. Additionally, those structures could support or replace traditional flight control surfaces. Depending on the morphing technology, different systems may be suitable to actuate the morphing structure. An early inclusion of the system architecture into the development of the morphing technology enables designing an optimal system in compliance with all requirements. Therefore, this paper discusses the conceptual design of system architectures for a novel morphing wing structure that is used for flight control. The benefits of morphing structures for aircraft applications are shown and the functionality of the used morphing structure is introduced. The morphing structure was designed to be actuated by fluids and is compatible with different gases and liquids. Since the fluid has a significant effect on the system architecture, characteristics of hydraulic and pneumatic systems were examined. Based on the requirements of the morphing structure, different system architectures were developed. Following, hydraulic and pneumatic architectures were selected for further investigations. Sizing functions for all main components, such as hydraulic pumps and electric motors, are presented. The preliminary design of the pneumatic system was additionally supported by a dynamic simulation. Finally, an evaluation of the selected architectures was conducted.

Item URL in elib:https://elib.dlr.de/129711/
Document Type:Article
Title:Preliminary Design of Hydraulic and Pneumatic System Architectures for a Morphing Flight Control Structure
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Schäfer, MichaelMichael.Schaefer (at) dlr.deUNSPECIFIED
Schäfer, AndreasA.Schaefer (at) dlr.deUNSPECIFIED
Bertram, OliverOliver.Bertram (at) dlr.dehttps://orcid.org/0000-0002-7732-9280
Date:16 September 2019
Journal or Publication Title:SAE Technical Papers
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
DOI :10.4271/2019-01-1916
Publisher:Society of Automotive Engineers (SAE) International
Series Name:AeroTech Europe Conference, AEROTECHEUR 2019
Keywords:Aircraft Conceptual Design, Adaptive Control Surfaces, Pneumatic Control Hydraulic Control
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: Braunschweig
Institutes and Institutions:Institute of Flight Systems > Safety Critical Systems and Systems Engineering
Deposited By: Schäfer, Michael
Deposited On:03 Jan 2020 17:38
Last Modified:20 Jun 2021 15:52

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