Abstract

Origami-inspired approaches to deployable or morphing structures have received significant interest in a range of fields. For such applications the shape of the origami must be actively controlled. We propose a distributed network of embedded actuators which open/close individual folds, and present a methodology for selecting the positions of these actuators. The deformed shape of the origami structure is tracked throughout its actuation using local curvatures derived from discrete differential geometry. A Genetic Algorithm (GA) is used to select an actuation configuration, which minimises the number of actuators or input energy required to achieve a target shape. The methodology is applied to both a deployed and twisted Miura-ori sheet. The results show that designing a rigidly foldable pattern to achieve shape-adaptivity does not always minimise the number of actuators or input energy required to reach the target.
Original languageEnglish
Article number081703
Number of pages8
JournalJournal of Mechanical Design, ASME
Volume143
Issue number8
Early online date8 Feb 2021
DOIs
Publication statusE-pub ahead of print - 8 Feb 2021

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