4D printing of shape memory polymer composites: A review on fabrication techniques, applications, and future perspectives

Journal of Manufacturing Processes, Journal Year: 2022, Volume and Issue: 81, P. 759 - 797

Published: July 25, 2022

Language: Английский

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Sustainable Robots 4D Printing

Advanced Sustainable Systems, Journal Year: 2023, Volume and Issue: 7(12)

Published: Sept. 1, 2023

Abstract Nature frequently serves as an inspiration for modern robotics innovations that emphasize secure human–machine interaction. However, the advantages of increased automation and digital technology integration conflict with global environmental objectives. Accordingly, biodegradable soft robots have been proposed a range intelligent applications. Biodegradability provides extraordinary functional advantage operations involving shape transformation in response to external stimuli such heat, pH, light. Soft robot fabrication using conventional manufacturing techniques is inflexible, time‐consuming, labor‐intensive. Recent advances 3D 4D printing materials multi‐materials become key enabling direct manufacture complex designs functions. This review comprises detailed survey sensors actuators (BSSA), which serve most prominent parts each robotic system. In addition, concise overview 3D‐printed flexible devices medical along industrial applications provided. A complete summary current additive BSSA discussed depth. Moreover, concept 4D‐printed biohybrid reviewed.

Language: Английский

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3D-printed digital pneumatic logic for the control of soft robotic actuators

Science Robotics, Journal Year: 2024, Volume and Issue: 9(86)

Published: Jan. 31, 2024

Soft robots are paving their way to catch up with the application range of metal-based machines and occupy fields that challenging for traditional machines. Pneumatic actuators play an important role in this development, allowing construction bioinspired motion systems. logic gates provide a powerful alternative controlling pressure-activated soft robots, which often controlled by metallic valves electric circuits. Many existing approaches fully compliant pneumatic control suffer from high manual effort low pressure tolerance. In our work, we invented three-dimensional (3D) printable, perform Boolean operations imitate Within 7 hours, filament printer is able produce module serves as OR, AND, or NOT gate; function defined assigned input signals. The gate contains two alternately acting valves, whose work principle based on interaction pressurized chambers 3D-printed 1-millimeter tube inside. design does not require any kind support material its hollow parts, makes modules ready use directly after printing. Depending chosen material, can operate supply between 80 more than 750 kilopascals. capabilities were verified implementing electronics-free drink dispenser ring oscillator 1-bit memory. Their compliance demonstrated driving car over flexible, robotic walker integrated circuit.

Language: Английский

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A Review of Recent Manufacturing Technologies for Sustainable Soft Actuators

International Journal of Precision Engineering and Manufacturing-Green Technology, Journal Year: 2023, Volume and Issue: 10(6), P. 1661 - 1710

Published: July 13, 2023

Abstract Soft actuators have brought significant advancements to robotics, allowing robots perform a diverse range of tasks across various domains. However, the increased use soft has resulted in negative environmental impacts, including material consumption, waste generation, and energy consumption. To address these challenges, research is increasingly focused on developing sustainable (SSAs) that can provide high performance while minimizing harm. This review article aims explore development manufacturing SSAs their potential reduce consumption promoting sustainability. The examines categories actuators, such as multi-responsive ones, shape-locking variants, biological water-responsive models, well implementation through multi-material printing and, 3D 4D techniques. also highlights applications SSAs, manufacturing, human–machine interaction, locomotion, manipulation. Furthermore, explores methods for reducing using recycled materials eco-friendly processes circular economy. Finally, study provides comprehensive analysis steer evolution robotics towards more future

Language: Английский

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Cyber-agricultural systems for crop breeding and sustainable production

Trends in Plant Science, Journal Year: 2023, Volume and Issue: 29(2), P. 130 - 149

Published: Aug. 28, 2023

The cyber-agricultural system (CAS) represents an overarching framework of agriculture that leverages recent advances in ubiquitous sensing, artificial intelligence, smart actuators, and scalable cyberinfrastructure (CI) both breeding production agriculture. We discuss the progress perspective three fundamental components CAS - modeling, actuation emerging concept agricultural digital twins (DTs). also how CI is becoming a key enabler In this review we shed light on significance revolutionizing crop by enhancing efficiency, productivity, sustainability, resilience to changing climate. Finally, identify underexplored promising future directions for research development.

Language: Английский

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Fully 3D‐Printed Miniature Soft Hydraulic Actuators with Shape Memory Effect for Morphing and Manipulation

Advanced Materials, Journal Year: 2024, Volume and Issue: unknown

Published: May 29, 2024

Miniature shape-morphing soft actuators driven by external stimuli and fluidic pressure hold great promise in morphing matter small-scale robotics. However, it remains challenging to achieve both rich shape locking a fast controlled way due the limitations of actuation reversibility fabrication. Here, fully 3D-printed, sub-millimeter thin-plate-like miniature hydraulic with memory effect (SME) for programable locking, are reported. It combines commercial high-resolution multi-material 3D printing stiff polymers (SMPs) elastomers direct microfluidic channels 2D/3D channel networks embedded single print run. Leveraging spatial patterning hybrid compositions expansion heterogeneity versatile hydraulically actuated morphing, including circular, wavy, helical, saddle, warping shapes various curvatures, demonstrated. The morphed can be temporarily locked recover their original planar forms repeatedly activating SME SMPs. Utilizing actuators, potential applications non-invasive manipulation objects fragile living organisms, multimodal entanglement grasping, energy-saving manipulators,

Language: Английский

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Towards high performance and durable soft tactile actuators

Chemical Society Reviews, Journal Year: 2024, Volume and Issue: 53(7), P. 3485 - 3535

Published: Jan. 1, 2024

Soft actuators are gaining significant attention due to their ability provide realistic tactile sensations in various applications. However, soft nature makes them vulnerable damage from external factors, limiting actuation stability and device lifespan. The susceptibility becomes higher with these often direct contact surroundings generate feedback. Upon onset of damage, the or repeatability will be undermined. Eventually, when complete failure occurs, disposed of, accumulating waste driving consumption natural resources. This emphasizes need enhance durability for continued operation. review presents principles feedback actuators, followed by a discussion mechanisms, advancements, challenges faced realize high performance, categorized stimuli. Diverse approaches achieve evaluated, including self-healing, resistance, self-cleaning, temperature actuators. In sections, current potential material designs identified, paving way developing durable

Language: Английский

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4D printing Light-Driven soft actuators based on Liquid-Vapor phase transition composites with inherent sensing capability

Chemical Engineering Journal, Journal Year: 2022, Volume and Issue: 454, P. 140271 - 140271

Published: Nov. 11, 2022

Language: Английский

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Soft pneumatic actuators with integrated resistive sensors enabled by multi-material 3D printing

The International Journal of Advanced Manufacturing Technology, Journal Year: 2023, Volume and Issue: 128(9-10), P. 4207 - 4221

Published: Aug. 29, 2023

Abstract The concept of soft robots has garnered significant attention in recent studies due to their unique capability interact effectively with the surrounding environment. However, as number innovative pneumatic actuators (SPAs) continues rise, integrating traditional sensors becomes challenging complex and unrestricted movements exhibited by SPA during operation. This article explores importance utilising one-shot multi-material 3D printing integrate force bending into SPAs. It highlights necessity a well-tuned robust low-cost fabrication process ensure functionality these over an extended period. Fused deposition modelling (FDM) offers cost-effective solution for embedding robots, directly addressing such necessity. Also, finite element method (FEM) based on nonlinear hyper-elastic constitutive model equipped experimental input is developed precisely predict deformation tip measured experiments. dynamic mechanical test conducted observe analyse behaviour resistance changes conductive thermoplastic polyurethane (CTPU) varioShore TPU (VTPU) cyclic test. flexible sensor can detect deformations SPAs through application air pressure. Similarly, exhibits ability grasping objects detecting resistance. These findings suggest that change corresponds magnitude stimuli applied. Thus, device shows potential functioning resistive actuation. Furthermore, highlight 4D technology sensor-actuator robotic systems, suggesting promising applications various fields like grippers rehabilitation devices.

Language: Английский

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Modeling of soft fluidic actuators using fluid–structure interaction simulations with underwater applications

International Journal of Mechanical Sciences, Journal Year: 2023, Volume and Issue: 255, P. 108437 - 108437

Published: May 15, 2023

Soft robots have been developed for a variety of applications including gripping, locomotion, wearables and medical devices. For the majority soft robots, actuation is performed using pneumatics or hydraulics. Many previous works addressed modeling these fluid-driven static finite element simulations where pressure inside actuator assumed to be constant uniform. The assumption internal useful simplification but introduces significant errors during events such as pressurization, depressurization, transient loads from liquid environment. Applications that use actuators locomotion propulsion operate sequence events, so accurate simulation critical optimizing performance. To improve fluidic enable both external fluid flow in underwater applications, this work describes fully-coupled, three-dimensional fluid–structure interaction approach, dynamics are explicitly solved. This approach provides realistic environments, permits optimization responses, which may due combination environmental non-uniform pressurization. proposed methods demonstrated number case studies experiments range inlet configurations, bending actuators, robotic fish fin propulsion, experimental results high-speed fluid, correlate closely with simulations. expected assist design, modeling, bioinspired applications.

Language: Английский

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