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MORPHING COMPLIANT TRAILINGEDGE SKIN CONCEPT

Tikalsky, Jan (2023) MORPHING COMPLIANT TRAILINGEDGE SKIN CONCEPT. In: DLRK2023. DLRK 2023, 2023-09-19 - 2023-09-21, Stuttgart.

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Abstract

Many different concepts for morphing trailing edges (TE) have been investigated during the last decades. Within the internal project morphAIR (Morphing Technologies & Artificial Intelligence Research Group) the German Aerospace Center (DLR) is planning further steps by investigating morphing technologies in scaled flight tests. In these flight tests, major effects of morphing technology are going to be shown. Due to having a small-scale demonstrator, former TE concepts need to be evaluated according to applicability, positive lift to drag (L/D) effects and associated weight penalties. Since large deformations are to be achieved typically in a hingeless-elastic system, high actuation forces are required in order to enable morphing. These internal structural loads are crucial for actuator and kinematic design, thus they are directly related to actuator and kinematic weight. Therefore, it is essential to have a measure of required size and weight during preliminary design processes. Within this work, four different methods are presented to derive the strain energy of a new compliant morphing TE system. Beginning with a geometrical linear analytical approach considering small deformations (Model I), over a nonlinear analytical approach incorporating large deformations (Model II), to geometric nonlinear Finite Element Method (FEM) calculations without (Model III) as well as including Fluid Structure Interaction (FSI) (Modell IV). Results of Modell I to IV are compared according to strain energy and virtual Forces. It has been shown that even Model I shows good correlation of deformations and strain energy.

Item URL in elib:https://elib.dlr.de/199508/
Document Type:Conference or Workshop Item (Speech)
Title:MORPHING COMPLIANT TRAILINGEDGE SKIN CONCEPT
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Tikalsky, JanUNSPECIFIEDhttps://orcid.org/0009-0009-0404-2308150702021
Date:19 September 2023
Journal or Publication Title:DLRK2023
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:Morphing, Wing, Trailing edge, Strain energy
Event Title:DLRK 2023
Event Location:Stuttgart
Event Type:national Conference
Event Start Date:19 September 2023
Event End Date:21 September 2023
Organizer:DLRG
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Components and Systems
DLR - Research area:Aeronautics
DLR - Program:L CS - Components and Systems
DLR - Research theme (Project):L - Structural Materials and Design, L - Unmanned Aerial Systems
Location: Cochstedt
Institutes and Institutions:Institut für Systemleichtbau > Adaptronics
Deposited By: Tikalsky, Jan
Deposited On:15 Jan 2024 07:54
Last Modified:24 Apr 2024 21:00

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