Modern mechatronic systems often try to mimic biological principles to improve functionality. As a result, soft components are becoming increasingly important, but are lacking in terms of performance or portability. In this thesis, the isotropic motion of dielectric elastomers is adapted to an anisotropic behaviour, following a bionic design approach. To achieve this, an additive manufacturing technology is used that allows a defined and heterogeneous distribution of electrically conductive particles. A segmented electrode design is being tested for the actuators, while the sensors are based on heterogeneous particle clusters. As a result, the electromechanical coupling of the electrode segments of dielectric elastomer actuators leads to anisotropic motion, revealing an inverse correlation between the anisotropy ratio and the maximum uniaxial displacement. In particular, the special case where all the electrodes are rim electrodes shows advantageous anisotropic properties. For dielectric elastomer sensors, the heterogeneous particle distribution allowed the detection of force amplitude and direction. A linear correlation between electrode resistance and applied strain can be found for small deformations. Whereas the magnitude of the linear range depends on the path distance.\nThe relevance of the results is demonstrated by two practical examples. As a functional iris implant, the diaphragm expansion can be increased due to the anisotropic design of the electrode segments. Furthermore, the defined heterogeneity of an anisotropic sensor allows the complete characterisation of wrist movements. In this first description printed anisotropic electrodes in dielectric elastomers are used as conventional membrane actuators. Further improvements are expected by implementing alternative designs or pre-stretching.
\nDie Bedeutung der Ergebnisse wird anhand von zwei praktischen Beispielen verdeutlicht. Als funktionelles Irisimplantat kann die Ausdehnung durch die anisotrope Gestaltung erh\u00f6ht werden. Weiterhin erm\u00f6glicht ein anisotroper Sensor die vollst\u00e4ndige Charakterisierung von Handgelenksbewegungen. In dieser Dissertationsschrift werden gedruckte anisotrope Elektroden als konventionelle Membranaktoren verwendet, wobei weitere Verbesserungen durch alternative Aufbauformen oder Vordehnung erwartet werden.<\/p>","protected":false},"excerpt":{"rendered":"
Moderne mechatronische Systeme nutzen biologische Prinzipien, um die Funktionalit\u00e4t zu verbessern. Daher wird in dieser Arbeit das isotrope Verhalten von dielektrischen Elastomeren \u00fcber einen bionischen Designansatz zu einem anisotropen Verhalten angepasst. Um dies zu erreichen, wird eine additive Fertigungstechnologie eingesetzt, die eine definierte und heterogene Verteilung von elektrisch leitf\u00e4higen Partikeln erm\u00f6glicht. F\u00fcr die Aktoren wird […]<\/p>\n","protected":false},"featured_media":5696,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false},"product_brand":[],"product_cat":[34],"product_tag":[],"class_list":{"0":"post-5695","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-fau-studien-aus-dem-maschinenbau","7":"has-post-title","8":"has-post-date","9":"has-post-category","10":"has-post-tag","11":"has-post-comment","12":"has-post-author","13":"","15":"first","16":"instock","17":"taxable","18":"shipping-taxable","19":"purchasable","20":"product-type-simple"},"acf":{"autor":"Martin, Sina","orcid":"0000-0002-2146-8265","ror":"00f7hpc57","herausgeber":"","orcid_hrsg":"","rorhrsg":"","bearbeiter":"","sonstige_beteiligte_personen":"","untertitel":"","zusatz":"","jahr":"2024","zeitschrift":"","serie":"","serie_name":false,"serie_band":"","serie_jahr":"","serie_titel_band":"","vortrage":"","issn":"","isbn":"","isbn13":"978-3-96147-789-0","seiten":"xxiii, 167","sonstiges":"","band":455,"auflage":"","opus":"","dspace":"33552","e-isbn_pdf":"978-3-96147-790-6","doi":"https:\/\/doi.org\/10.25593\/978-3-96147-790-6","epub":"","e-isbn_epub":"","doi_epub":"","html":"","e-isbn_html":"","doi_html":"","e-isbn_reader":"","doi_reader":"","digibib":"","urn":"urn:nbn:de:101:1-2501030408572.895515189741","supplementary_material":"","sprache":["Deutsch"],"ausgabe":"Softcover","suche":" 9783961477890 9783961477906 ","lizenz":"BY-NC-4","bemerkung":"1\tFAU Press\r\n1\tHB\r\n4\tBSB \/ DNB\r\n1\tTNZB\r\n1\tTIB\r\n"},"builder_content":"","_links":{"self":[{"href":"https:\/\/www.university-press.fau.de\/en\/wp-json\/wp\/v2\/product\/5695","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.university-press.fau.de\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/www.university-press.fau.de\/en\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/www.university-press.fau.de\/en\/wp-json\/wp\/v2\/comments?post=5695"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.university-press.fau.de\/en\/wp-json\/wp\/v2\/media\/5696"}],"wp:attachment":[{"href":"https:\/\/www.university-press.fau.de\/en\/wp-json\/wp\/v2\/media?parent=5695"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.university-press.fau.de\/en\/wp-json\/wp\/v2\/product_brand?post=5695"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.university-press.fau.de\/en\/wp-json\/wp\/v2\/product_cat?post=5695"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.university-press.fau.de\/en\/wp-json\/wp\/v2\/product_tag?post=5695"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}