Kukkia and Vilkas: Kinetic Electronic Garments

Berzowska, Joanna; Coelho, Marcelo

doi:10.1109/iswc.2005.29

Cited by 89 publications

(52 citation statements)

References 2 publications

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“…NiTi memory elements have been used (among other things) in: stents [21]; catheters [22]; actuators for robotic and biomimetic systems [23]- [27]; morphing aircraft structures [20]; orthopedic implants [20]; systems for structural health monitoring [28]; robotic pumps [29]; and even as integrated elements in clothing [30]. SMAs offer high blocking stresses (200 MPa), high specific power (>100 kW/kg), and can be actuated using Joule heating via an applied current [12].…”

Section: Theory and Modeling Of Niti Coil Actuatorsmentioning

confidence: 99%

Low Spring Index NiTi Coil Actuators for Use in Active Compression Garments

Holschuh

Obropta

Newman

2015

IEEE/ASME Trans. Mechatron.

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Abstract-This paper describes the modeling, development, and testing of low spring index nickel titanium (NiTi) coil actuators designed for use in wearable compression garments, and presents a prototype tourniquet system using these actuators. NiTi coil actuators produce both large forces (>1 N) and large recoverable displacements (>100% length) that are well suited for compression garment design. Thermomechanical coil models are presented that describe temperature and force as a function of non-dimensionalized coil geometry, extensional strain, and applied voltage. These models suggest that low spring index coils maximize activation force, and an analytical model is presented to predict garment counter-pressure based on actuator architecture. Several low spring index (C = 3.08) coils were manufactured, annealed, and tested to assess their de-twinning and activation characteristics. Results suggest both annealing and applied stress affect activation thresholds. Actuator force increases both with extensional strain and applied voltage up to 7.24 N. A first-generation compression tourniquet system using integrated actuators with direct voltage-control of applied pressure is presented, demonstrating >70% increase in applied pressure during activation. This approach enables new, dynamic garments with controllable activation and low effort donning and doffing, with applications ranging from healthcare solutions to advanced space suit design.

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Section: Theory and Modeling Of Niti Coil Actuatorsmentioning

confidence: 99%

Low Spring Index NiTi Coil Actuators for Use in Active Compression Garments

Holschuh

Obropta

Newman

2015

IEEE/ASME Trans. Mechatron.

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“…Awakened Apparel is a fully embedded pneumatically folding shape-changing fashion wearable [23], and Scarfy a scarf that can deliver information by shape-changing and vibration based on how it is tied by the user [25]. SKORPIONS is a set of kinetic electronic garments that move and change on the wearers body in slow, organic motions enabled by the shape-memory alloy Nitinol [3]. In addition to garments, e.g.…”

Section: Wearables Aesthetics and Smart Fashionmentioning

confidence: 99%

Exploring smart handbag concepts through co-design

Pakanen

Lappalainen

Roinesalo

et al. 2016

Proceedings of the 15th International Conference on Mobile and Ubiquitous Multimedia

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As technology matures and its possibilities get more and more varied, there is also more room for thinking the user experience (UX) design, industrial design, and aesthetics of the computing form factors. The holistic user experience consists of a utilitarian and hedonic side [13]. While technology can respond to the call for pragmatic solutions for fulfilling different utilitarian user needs, UX design needs to focus also on hedonic aspects such as visual appearance, comfort of materials, or social function and engagement with the product. According to the principles of user centric design (UCD), it is important to gather background knowledge from the users when designing new technologies or novel applications in order to create end-products, which as both usable, acceptable, and desirable.In this paper, we report our work on a user centric approach on smart handbag design. We consider handbag as a potential novel form factor for mobile computing devices due its commonness in everyday life, its shape and size that allow easy technology integration, and its general wearability. Handbags are commonplace objects, which roughly half of the adult population, i.e. females, carry. Until now, handbags have been completely free from any interactive technology. In the following, we look at the possibilities for smart handbag design through a co-design approach. We introduce the findings of two studies, where feedback on the topic was gathered through different UCD and co-design methods, see Figure 1. ABSTRACTIn this paper, we explore design preferences and possibilities for smart handbags from the user perspective. We present designs and findings derived through a co-design process, which consisted of two studies; first with individual drawing based brainstorming (n=20), and second with two co-design workshops (n=10), where participants assessed different designs and features, and created low-fi prototypes of smart handbag concepts. Participants proposed large shape and style variations for smart handbags, according to the intended contexts, use cases, and lifestyle. In this respect the desire for modifiability, e.g. adapting in size and shape, was highlighted. The handbag's durability, weatherproofness and use of high quality materials were also raised.

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“…While widely studied for use as robotic actuators and other similar tasks because of their ability to function as artificial muscles 9 , active materials have only recently garnered attention for their potential to strategically augment or enhance wearable garments 11,30 . The interest in integrating active materials for smart fabrics is growing as the underlying material technologies mature, and avenues for new and innovative research in these areas are being continuously discovered 31 .…”

Section: Analysis Of Active Materialsmentioning

confidence: 99%

“…SMAs have been extensively studied, and their shape memory and elastic properties have proven useful in a wide variety of applications, ranging from robotic actuators and prostheses to bridge restraints, valves, deformable glasses frames, biomedical devices, and even wearable garments 30,[45][46][47][48][49] . The memory effect has been demonstrated in several alloy types, though the most common and commercially available alloy produced is NiTi (approximately 55% Nickel and 45% Titanium), under brands such as Nitinol® and Flexinol®.…”

Section: Analysis Of Active Materialsmentioning

confidence: 99%

Materials and Textile Architecture Analyses for Mechanical Counter-Pressure Space Suits using Active Materials

Holschuh

Obropta

Buechley

et al. 2012

AIAA SPACE 2012 Conference &Amp; Exposition

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Mechanical counter-pressure (MCP) space suits have the potential to improve the mobility of astronauts as they conduct planetary exploration activities. MCP suits differ from traditional gas-pressurized space suits by applying surface pressure to the wearer using tight-fitting materials rather than pressurized gas, and represent a fundamental change in space suit design. However, the underlying technologies required to provide uniform compression in a MCP garment at sufficient pressures for space exploration have not yet been perfected, and donning and doffing a MCP suit remains a significant challenge. This research effort focuses on the novel use of active material technologies to produce a garment with controllable compression capabilities (up to 30 kPa) to address these problems. We provide a comparative study of active materials and textile architectures for MCP applications; concept active material compression textiles to be developed and tested based on these analyses; and preliminary biaxial braid compression garment modeling results. Nomenclature DEA= dielectric elastomer actuator EAP = electroactive polymer EMU = extravehicular mobility unit EVA = extravehicular activity MCP = mechanical counter-pressure NASA = National Aeronautics and Space Agency SMA = shape memory alloy SMP = shape memory polymer

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Kukkia and Vilkas: Kinetic Electronic Garments

Cited by 89 publications

References 2 publications

Low Spring Index NiTi Coil Actuators for Use in Active Compression Garments

Low Spring Index NiTi Coil Actuators for Use in Active Compression Garments

Exploring smart handbag concepts through co-design

Materials and Textile Architecture Analyses for Mechanical Counter-Pressure Space Suits using Active Materials

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