• search hit 11 of 24
Back to Result List

Actuators based on a controlled particlematrix interaction in magnetic hybrid materials for applications in locomotion and manipulation systems

  • The paper deals with the investigation of magneto-sensitive elastomers(MSE) and their application in technical actuator systems. MSE consist of an elasticmatrix containing suspended magnetically soft and/or hard particles. Additionally,they can also contain silicone oil, graphite particles, thermoplastic components, etc.,in various concentrations in order to tune specific properties such as viscosity, con-ductivity and thermoelasticity, respectively. The focuses of investigations are thebeneficial properties of MSE in prototypes for locomotion and manipulation purposesthat possess an integrated sensor function. The research follows the principle of amodel-based design, i.e. the working steps are ideation, mathematical modelling,material characterization as well as building first functional models (prototypes). Thedeveloped apedal (without legs) and non-wheeled locomotion systems use the inter-play between material deformations and the mechanical motion in connection with theissues of control and stability. Non-linear friction phenomena lead to a monotonousforward motion of the systems. The aim of this study is the design of such mechanicalstructures, which reduce the control costs. The investigations deal with the movementand control of‘intelligent’mechanisms, for which the magnetically field-controlledparticle-matrix interactions provide an appropriate approach. The presented grippersenclose partially gripped objects, which is an advantage for handling sensitive objects.Form-fit grippers with adaptable contour at the contact area enable a uniform pressuredistribution on the surface of gripped objects. Furthermore, with the possibility ofactive shape adaptation, objects with significantly differing geometries can be gripped.To realise the desired active shape adaptation, the effect of field-induced plasticity ofMSE is used. The first developed prototypes mainly confirm the functional principles assuch without direct application. For this, besides the ability of locomotion andmanipulation itself, further technological possibilities have to be added to the systems.

Export metadata

Additional Services

Share in Twitter Search Google Scholar Statistics
Metadaten
Author:Jhohan ChavezORCiDGND, Valter BöhmGND, Tatiana I. Becker, Simon Gast, Igor Zeidis, Klaus Zimmermann
DOI:https://doi.org/10.1515/9783110569636-027
ISBN:9783110569636
Parent Title (English):Magnetic Hybrid-Materials: Multi-scale modelling synthesis and applications
Publisher:De Gruyter
Place of publication:Berlin
Editor:Stefan Odenbach
Document Type:Part of a Book
Language:English
Year of first Publication:2021
Release Date:2022/07/14
Tag:apedal locomotion systems; field-controlled particle-matrix interaction; field-induced plasticity; form-fit gripper; integrated sensor-actuator systems; magneto-sensitive elastomer
First Page:653
Last Page:680
Note:
Zuerst erschienen in: Physical Sciences Reviews, 2020, pp. 20190087
Institutes:Fakultät Maschinenbau
Fakultät Maschinenbau / Labor Finite-Elemente-Methode (FEM)
Begutachtungsstatus:peer-reviewed
research focus:Produktion und Systeme
Licence (German):Creative Commons - CC BY-NC-ND - Namensnennung - Nicht kommerziell - Keine Bearbeitungen 4.0 International