Wearable Haptics for Orthotropic Actuation Based on Perpendicularly Nested Auxetic SMA Knotting

Wearable Haptics for Orthotropic Actuation Based on Perpendicularly Nested Auxetic SMA Knotting

© 2024 The Author(s). Advanced Materials published by Wiley‐VCH GmbH.

Bibliographische Detailangaben
Veröffentlicht in:Advanced materials (Deerfield Beach, Fla.). - 1998. - (2024) vom: 29. Okt., Seite e2411353
1. Verfasser: Khan, Mannan (VerfasserIn)
Weitere Verfasser: Oh, Saewoong, Song, Tae-Eun, Ji, Wonhee, Mahato, Manmatha, Yang, Yang, Saatchi, Daniel, Ali, Syed Sheraz, Roh, Jaewoo, Yun, Donghyeok, Ryu, Jee-Hwan, Oh, Il-Kwon
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2024
Zugriff auf das übergeordnete Werk:Advanced materials (Deerfield Beach, Fla.)
Schlagworte:Journal Article fabric actuators orthogonal auxetic structures orthotropic actuators shape‐memory alloys wearable haptics
Beschreibung
Zusammenfassung:© 2024 The Author(s). Advanced Materials published by Wiley‐VCH GmbH.
Smart wearable tactile systems, designed to deliver different types of touch feedback on human skin, can significantly improve engagement through diverse actuation patterns in virtual or augmented reality environments. Here, a perpendicularly nested auxetic wearable haptic interface is reported for orthotropically decoupled multimodal actuation (WHOA), capable of producing diverse tactile feedback modes with 3D sensory perception. WHOA incorporates shape memory alloy wires that are intricately knotted into an auxetic structure oriented along orthotropic dual axes. Its perpendicularly nested auxetic structure enables orthotropic actuation, allowing independent expansion and contraction along both x and y-axes, as confirmed by force-strain and displacement-time performance tests. Additionally, the perylene coating provides orthogonal electrical isolation to WHOA, allowing for stripe-specific localized actuation and enabling multiple tactile feedback modes. As an orthotropic wearable haptic interface, WHOA distinguishes between x-axis and y-axis directions and ultimately delivers multi-dimensional information regarding movements in 3D space through tactile feedback. As a result, when worn on the foot or arm, WHOA naturally delivers spatiotemporal tactile information to the user, facilitating navigation and teleoperation with 3D sensory perception
Beschreibung:Date Revised 29.10.2024
published: Print-Electronic
Citation Status Publisher
ISSN:1521-4095
DOI:10.1002/adma.202411353