Topology optimization of a cantilevered piezoelectric energy harvester using stress norm constraints

Beitrag in einer Fachzeitschrift
(Originalarbeit)


Details zur Publikation

Autorinnen und Autoren: Wein F, Kaltenbacher M, Stingl M
Zeitschrift: Structural and Multidisciplinary Optimization
Verlag: Springer Verlag (Germany)
Jahr der Veröffentlichung: 2013
Band: 48
Heftnummer: 1
Seitenbereich: 173-185
ISSN: 1615-147X


Abstract


Vibrational piezoelectric energy harvesters are devices which convert ambient vibrational energy into electric energy. Here we focus on the common cantilever type in which an elastic beam is sandwiched between two piezoelectric plates. In order to maximize the electric power for a given sinusoidal vibrational excitation, we perform topology optimization of the elastic beam and tip mass by means of the SIMP approach, leaving the piezoelectric plates solid. We are interested in the first and especially second resonance mode. Homogenizing the piezoelectric strain distribution is a common indirect approach increasing the electric performance. The large design space of the topology optimization approach and the linear physical model also allows the maximization of electric performance by maximizing peak bending, resulting in practically infeasible designs. To avoid such problems, we formulate dynamic piezoelectric stress constraints. The obtained result is based on a mechanism which differs significantly from the common designs reported in literature.



FAU-Autorinnen und Autoren / FAU-Herausgeberinnen und Herausgeber

Stingl, Michael Prof. Dr.
Professur für Angewandte Mathematik (Kontinuierliche Optimierung)
Wein, Fabian Dr.
Lehrstuhl für Angewandte Mathematik


Zusätzliche Organisationseinheit(en)
Exzellenz-Cluster Engineering of Advanced Materials


Einrichtungen weiterer Autorinnen und Autoren

Alpen-Adria-Universität Klagenfurt


Forschungsbereiche

A3 Multiscale Modeling and Simulation
Exzellenz-Cluster Engineering of Advanced Materials


Zitierweisen

APA:
Wein, F., Kaltenbacher, M., & Stingl, M. (2013). Topology optimization of a cantilevered piezoelectric energy harvester using stress norm constraints. Structural and Multidisciplinary Optimization, 48(1), 173-185. https://dx.doi.org/10.1007/s00158-013-0889-6

MLA:
Wein, Fabian, Manfred Kaltenbacher, and Michael Stingl. "Topology optimization of a cantilevered piezoelectric energy harvester using stress norm constraints." Structural and Multidisciplinary Optimization 48.1 (2013): 173-185.

BibTeX: 

Zuletzt aktualisiert 2018-11-08 um 02:15