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Modified Triply Periodic Actuator Topologies

Sparenberg, Marc and Melcher, Jörg (2022) Modified Triply Periodic Actuator Topologies. The American Society of Mechanical Engineers. SMASIS, 12.-14. September 2022, Dearborn, Michigan, USA. doi: 10.1115/SMASIS2022-91015.

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Official URL: https://event.asme.org/SMASIS


The concept of a new piezoelectric actuator design is the focus of an ongoing smart structures research at DLR. It envisages actuator geometries, that have their template in nature and are aimed at optimally transfering their mechanical power to the structure in which they are integrated. The second aspect can only be achieved in case of an impedance matching. We found out, that these very specific designs have highly interesting differential geometry descriptions and that these geometries can be realized in a congenial combined manufacturing procedure: we start with 3D-printed filigree lightweight structures and continue with self-organizing processes. The results are simply, doubly and triply periodic piezoelectric membranes, grids and truss elements. One of their essential properties is their almost perfect stress distribution under mechanical loads. Any notch stresses are prevented. In this paper the first example is the modified catenoid piezoactuator. We continue with a doubly periodic honeycomb structure and finish with triply periodic modified gyroid and diamond-like actuators.

Item URL in elib:https://elib.dlr.de/189376/
Document Type:Conference or Workshop Item (Speech)
Title:Modified Triply Periodic Actuator Topologies
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Sparenberg, MarcUNSPECIFIEDhttps://orcid.org/0000-0002-2032-2301UNSPECIFIED
Melcher, JörgUNSPECIFIEDhttps://orcid.org/0000-0001-5114-4184UNSPECIFIED
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Publisher:The American Society of Mechanical Engineers
Series Name:Smart Materials, Adaptive Structures, and Intelligent Systems
Keywords:actuator, piezoelectric, lightweight construction, impedance, differential geometry, modified catenoid, minimal surface, Weierstrass parametrization, curvature, gyroid, diamond surface, doubly and triply periodic, additive manufacturing, self-organization
Event Title:SMASIS
Event Location:Dearborn, Michigan, USA
Event Type:international Conference
Event Dates:12.-14. September 2022
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:other
DLR - Research area:Aeronautics
DLR - Program:L - no assignment
DLR - Research theme (Project):L - no assignment
Location: Braunschweig
Institutes and Institutions:Institute of Composite Structures and Adaptive Systems > Leitungsbereich FA
Deposited By: Sparenberg, Marc
Deposited On:07 Nov 2022 12:29
Last Modified:26 Jul 2023 14:38

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