Vasista, Srinivas and Riemenschneider, Johannes and Monner, Hans Peter (2015) Design and Testing of a Compliant Mechanism-Based Demonstrator for a Droop-Nose Morphing Device. 23rd AIAA/AHS Adaptive Structures Conference, 05.-09. Jan. 2015, Kissimmee, Florida, USA.
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Abstract
A demonstrator morphing leading edge was designed and manufactured as an intermediary step in preparation for wind tunnel testing of a droop-nose adaptive morphing wingtip (AMWT) as part of the European FP7 project NOVEMOR. This demonstrator features a flexible fiberglass skin and a monolithic aluminum internal compliant mechanism and support structure for lightweight design. The design process involves the design of the skin via a structural optimization tool, followed by continuum gradient-based topology optimization of first the compliant mechanism and then the support structure. The skin was manufactured using prepreg Hexcel HexPly® 913 plies, the aluminum internal structure was laser cut from stock plate material and the compliant region was driven by a linear stepper motor actuator. Displacements and strains were measured and compared with target values and that of finite element computations and overall show good agreement; however issues such as grey-areas and hinge-regions in the topology optimization need to be addressed for the final wind tunnel design for better post-processing and reduced stress concentrations.
Item URL in elib: | https://elib.dlr.de/97105/ | ||||||||||||
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Document Type: | Conference or Workshop Item (Speech) | ||||||||||||
Title: | Design and Testing of a Compliant Mechanism-Based Demonstrator for a Droop-Nose Morphing Device | ||||||||||||
Authors: |
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Date: | January 2015 | ||||||||||||
Refereed publication: | No | ||||||||||||
Open Access: | Yes | ||||||||||||
Gold Open Access: | No | ||||||||||||
In SCOPUS: | No | ||||||||||||
In ISI Web of Science: | No | ||||||||||||
Status: | Published | ||||||||||||
Keywords: | Morphing, Droop Nose | ||||||||||||
Event Title: | 23rd AIAA/AHS Adaptive Structures Conference | ||||||||||||
Event Location: | Kissimmee, Florida, USA | ||||||||||||
Event Type: | international Conference | ||||||||||||
Event Dates: | 05.-09. Jan. 2015 | ||||||||||||
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 - Structures and Materials (old) | ||||||||||||
Location: | Braunschweig | ||||||||||||
Institutes and Institutions: | Institute of Composite Structures and Adaptive Systems > Adaptronics | ||||||||||||
Deposited By: | Stanitzek, Silke | ||||||||||||
Deposited On: | 20 Jul 2015 15:25 | ||||||||||||
Last Modified: | 31 Jul 2019 19:53 |
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