Development of models for additively manufactured actuators using compliant Wren mechanism

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Autor:innen
Lennart, Rubbert
Gayral, Thibault
Renaud, Pierre
Autor:in (Körperschaft)
Publikationsdatum
11/2021
Typ der Arbeit
Studiengang
Sammlung
Institut für Medizintechnik und Medizininformatik
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Typ
01A - Beitrag in wissenschaftlicher Zeitschrift
Herausgeber:innen
Herausgeber:in (Körperschaft)
Betreuer:in
Ãœbergeordnetes Werk
Precision Engineering
Themenheft
DOI
https://doi.org/10.1016/j.precisioneng.2021.05.002
URI
https://irf.fhnw.ch/handle/11654/33409
Link
Reihe / Serie
Jahrgang / Band
72
Ausgabe / Nummer
Seiten / Dauer
304-314
Patentnummer
Verlag / Herausgebende Institution
Elsevier
Verlagsort / Veranstaltungsort
Auflage
Version
Programmiersprache
Abtretungsempfänger:in
Praxispartner:in/Auftraggeber:in
Zusammenfassung
Compliant Wren mechanisms (CWM) constitute specific compliant structures of particular interest. Derived from Wren mechanisms, they can exhibit a large variety of motions, from quasi translation to quasi rotation. In this paper, the development of models for the analysis and synthesis of CWM is considered. A kinematic model is introduced first to assess all possible motions when used as an actuator. Then the static model and stress expressions are derived to help their design. These derivations are achieved for two types of geometries, corresponding to the geometries of interest. CWM are filigree structures, whose manufacturing is difficult to consider without additive manufacturing. A specific work on their production using selective laser melting (SLM) is then achieved to ensure the reliability of their production. As a proof of concept, a pneumatically actuated component is then developed and tested. It is composed of two CWM of different geometries. It offers the possibility to obtain translation and rotation using a single pressure input. The developed models are investigated using finite element models and experiments using additively manufactured structures.
Schlagwörter
Wren mechanism, Compliant mechanism, Additive manufacturing, Titanium
Fachgebiet (DDC)
Projekt
Veranstaltung
Startdatum der Ausstellung
Enddatum der Ausstellung
Startdatum der Konferenz
Enddatum der Konferenz
Datum der letzten Prüfung
ISBN
ISSN
0141-6359
1873-2372
Sprache
Englisch
Während FHNW Zugehörigkeit erstellt
Ja
Publikationsstatus
Veröffentlicht
Begutachtung
Peer-Review der ganzen Publikation
Open Access-Status
Closed
Lizenz
Zitation
LENNART, Rubbert, Felix SCHULER, Thibault GAYRAL, Michael DE WILD und Pierre RENAUD, 2021. Development of models for additively manufactured actuators using compliant Wren mechanism. Precision Engineering. November 2021. Bd. 72, S. 304–314. DOI 10.1016/j.precisioneng.2021.05.002. Verfügbar unter: https://irf.fhnw.ch/handle/11654/33409
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