Functional Fibers and Fabrics for Soft Robotics, Wearables, and Human–Robot Interface

Advanced Materials, Год журнала: 2020, Номер 33(19)

Опубликована: Окт. 6, 2020

Abstract Soft robotics inspired by the movement of living organisms, with excellent adaptability and accuracy for accomplishing tasks, are highly desirable efficient operations safe interactions human. With emerging wearable electronics, higher tactility skin affinity pursued user‐friendly human–robot interactions. Fabrics interlocked fibers perform traditional static functions such as warming, protection, fashion. Recently, dynamic fabrics favorable to deliver active stimulus responses sensing actuating abilities soft‐robots wearables. First, responsive mechanisms fiber/fabric actuators their performances under various external stimuli reviewed. Fiber/yarn‐based artificial muscles manipulation assistance in human motion discussed, well smart clothes improving perception. Second, geometric designs, fabrications, mechanisms, fibers/fabrics energy harvesting from body environments summarized. Effective integration between electronic components garments, skin, organisms is illustrated, presenting multifunctional platforms self‐powered potential biomedicine. Lastly, relationships robotic/wearable stimuli, together challenges possible routes revolutionizing robotic wearables this new era proposed.

Язык: Английский

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Review of Dielectric Elastomer Actuators and Their Applications in Soft Robots

Advanced Intelligent Systems, Год журнала: 2021, Номер 3(10)

Опубликована: Июль 11, 2021

Due to the inherent rigidity of hard materials, adaptability and flexibility traditional robots are limited. Recently, soft became one most attractive areas. The intrinsic compliance materials enable achieve unexpected functions. Dielectric elastomers (DE) can exhibit large deformation, fast response, high energy density under action external electrical stimuli, becoming promising in robots. Herein, key points DE actuators (DEAs) first introduced, including working principle, compliant electrodes, typical configurations. Then, driven by DEAs reviewed. Some recent highlights described discussed detail. Finally, main challenges summarized for real‐world application based on DEAs.

Язык: Английский

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Dielectric elastomer actuators

Journal of Applied Physics, Год журнала: 2021, Номер 129(15)

Опубликована: Апрель 19, 2021

Dielectric elastomer actuators (DEAs) are soft, electrically powered that have no discrete moving parts, yet can exhibit large strains (10%–50%) and moderate stress (∼100 kPa). This Tutorial describes the physical basis underlying operation of DEA's, starting with a simple linear analysis, followed by nonlinear Newtonian energy approaches necessary to describe strain characteristics actuators. These lead theoretical limits on actuation useful non-dimensional parameters, such as normalized electric breakdown field. The analyses guide selection materials compliant electrodes for DEAs. As DEAs operate at high fields, this some factors affecting Weibull distribution dielectric breakdown, geometrical effects, distinguishing between permanent “soft” well “self-clearing” its relation proof testing increase device reliability. New evidence molecular alignment under an field is also presented. In discussion electrodes, rationale carbon nanotube (CNT) presented based their compliance ability maintain percolative conductivity even when stretched. A procedure making complaint CNT included those who wish fabricate own. Percolative inevitably give rise only partial surface coverage consequences actuator performance introduced. Developments in geometry, including recent 3D printing, described. versatile reconfigurable shape-changing actuators, together illustrated examples. Finally, prospects achieving higher will be discussed.

Язык: Английский

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Application of intrinsically conducting polymers in flexible electronics

SmartMat, Год журнала: 2021, Номер 2(3), С. 263 - 285

Опубликована: Авг. 18, 2021

Abstract Intrinsically conducting polymers (ICPs), such as polyacetylene, polyaniline, polypyrrole, polythiophene, and poly(3,4‐ethylenedioxythiophene) (PEDOT), can have important application in flexible electronics owing to their unique merits including high conductivity, mechanical flexibility, low cost, good biocompatibility. The requirements for include conductivity appropriate properties. of some ICPs be enhanced through a postpolymerization treatment, the so‐called “secondary doping.” A polymer film with used electrode even transparent optoelectronic devices. stretchable requires stretchability. stretchability improved blending soft or plasticization. Because biocompatibility, modified dry biopotential monitoring neural interface. In addition, active material strain sensors healthcare monitoring, they adopted monitor food processing, fermentation, steaming, storage, refreshing starch‐based because resistance variation caused by volume change. All these applications are covered this review article.

Язык: Английский

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An Overview of Soft Robotics

Annual Review of Control Robotics and Autonomous Systems, Год журнала: 2022, Номер 6(1), С. 1 - 29

Опубликована: Ноя. 14, 2022

Soft robots’ flexibility and compliance give them the potential to outperform traditional rigid-bodied robots while performing multiple tasks in unexpectedly changing environments conditions. However, soft are yet reveal their full potential; nature is still far more advanced several areas, such as locomotion manipulation. To understand what limits performance hinders transition from laboratory real-world conditions, future studies should focus on understanding principles behind design operation of robots. Such also consider major challenges with regard complex materials, accurate modeling, control, intelligent behaviors. As a starting point for studies, this review provides current overview field by examining working mechanisms actuation sensing modalities, modeling techniques, control strategies, learning architectures Next, we summarize how these approaches can be applied create sophisticated examine application areas. Finally, provide perspectives key tackled first advance robotics truly add value our society.

Язык: Английский

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Decade of bio-inspired soft robots: a review

Smart Materials and Structures, Год журнала: 2022, Номер 31(7), С. 073002 - 073002

Опубликована: Май 9, 2022

Abstract Soft robotics is an emerging field of that focuses on the design soft machines and devices with effective human-machine interaction, high conformity, environmental adaptability. The conventional robots made hard materials have already achieved precision accuracy, but they lack in reachability, adaptability, degree freedom, safe interaction. Moreover, mimic behavior biological creatures by mimicking their locomotive patterns. actuation or locomotion actuators which are a very important part robotic systems. Herein, comprehensive review based evolution six methodologies presented. Various approaches used for fabrication such as pneumatic, shape memory alloy, dielectric elastomers, chemical-reaction enforced, pneumatic magneto-rheological elastomers-based methods reported last decade. Furthermore, advancement these has been rigorously discussed chronological order parameters like efficiency, power requirement, frequency, possible applications. Future challenges directions toward also achieving remarkable performance real-time environment. we believe, this complete package young researchers can help them to understand, how evolved from performance, application, efficiency point view.

Язык: Английский

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Wearable Haptic Feedback Interfaces for Augmenting Human Touch

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Янв. 23, 2025

Abstract The rapid development of virtual and augmented reality has highlighted the growing need for haptic feedback interfaces, particularly in portable or wearable formats. These interfaces significantly enhance immersive experiences users across various domains, including social media, gaming, biomedical instrumentation, robotics by utilizing sophisticated actuators to stimulate somatosensory receptors afferent nerves beneath skin, thereby creating tactile sensations. Despite progress that employ diverse working mechanisms, each mode limitations. This article comprehensively reviews current state potential opportunities with a particular focus on actuator technologies. Existing can be classified into three main categories: force‐based thermal electrotactile interfaces.

Язык: Английский

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Mechanical Characterization and Computational Analysis of TPU 60A: Integrating Experimental Testing and Simulation for Performance Optimization

Materials, Год журнала: 2025, Номер 18(2), С. 240 - 240

Опубликована: Янв. 8, 2025

This study investigates the mechanical properties of thermoplastic polyurethane (TPU) 60A, which is a flexible material that can be used to produce soft robotic grippers using additive manufacturing. Tensile tests were conducted under ISO 37 and 527 standards assess effects different printing orientations (0°, 45°, −45°, 90°, quasi-isotropic) test speeds (2 mm/min, 20 200 mm/min) on material’s performance. While at 0° quasi-isotropic provided similar performance, orientation demonstrated most balanced behavior, establishing it as optimal choice for robust predictable particularly computational simulations. TPU 60A’s flexibility further emphasizes its suitability handling delicate objects in industrial agricultural applications, where damage prevention critical. Computational simulations finite element method conducted. To verify accuracy models, comparison was made between average stresses tensile predictions. The relative errors force displacement are lower than 5%. So, constitutive model accurately represent making suitable with this material. analysis strain rates valuable insights into optimizing production processes enhanced strength. highlights importance tailored parameters achieve uniformity, suggesting improvements such biaxial testing G-code optimization variable thickness deposition. Overall, research offers comprehensive guidelines future design manufacturing techniques robotics.

Язык: Английский

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Additive manufacturing aimed to soft robots fabrication: A review

Extreme Mechanics Letters, Год журнала: 2020, Номер 42, С. 101079 - 101079

Опубликована: Ноя. 2, 2020

Язык: Английский

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A Review on the Applications of Graphene in Mechanical Transduction

Advanced Materials, Год журнала: 2021, Номер 34(8)

Опубликована: Июль 20, 2021

Abstract A pressing need to develop low‐cost, environmentally friendly, and sensitive sensors has arisen with the advent of always‐connected paradigm internet‐of‐things (IoT). In particular, mechanical have been widely studied in recent years for applications ranging from health monitoring, through biosignals, structure integrity analysis. On other hand, innovative ways implement actuation also focus intense research an attempt close circle human–machine interaction, move toward flexible electronics. Due its potential scalability, disposability, outstanding properties, graphene thoroughly field transduction. The transduction are reviewed here. An overview sensor actuator is provided, covering different mechanisms such as piezoresistivity, capacitive sensing, optically interrogated displacement, piezoelectricity, triboelectricity, electrostatic actuation, chemomechanical thermomechanical well thermoacoustic emission. critical review main approaches presented within scope a wider discussion on future this so‐called wonder material

Язык: Английский

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