Kinematic design of a serial-parallel hybrid finger mechanism actuated by twisted-and-coiled polymer
Sign Up to like & getrecommendations! Published in 2020 at "Mechanism and Machine Theory"
DOI: 10.1016/j.mechmachtheory.2020.103951
Abstract: Abstract Flexible actuators composed of twisted and coiled polymers (TCPs) can provide excellent performance such as high power-to-weight ratios for robotic hands. This paper presents a systematic methodology for the kinematic design of the TCP-actuated… read more here.
Keywords: kinematic design; twisted coiled; mechanism; finger mechanism ... See more keywords
Electrically controllable twisted-coiled artificial muscle actuators using surface-modified polyester fibers
Sign Up to like & getrecommendations! Published in 2017 at "Smart Materials and Structures"
DOI: 10.1088/1361-665x/aa5323
Abstract: As a new class of thermally activated actuators based on polymeric fibers, we investigated polyethylene terephthalate (PET) yarns for the development of a twisted-coiled polymer fiber actuator (TCA). The PET yarn TCA exhibited the maximum… read more here.
Keywords: pet; surface; twisted coiled; artificial muscle ... See more keywords
iGrab: hand orthosis powered by twisted and coiled polymer muscles
Sign Up to like & getrecommendations! Published in 2017 at "Smart Materials and Structures"
DOI: 10.1088/1361-665x/aa8929
Abstract: Several works have been reported in powered hand orthosis in the last ten years for assistive or rehabilitative purposes. However, most of these approaches uses conventional actuators such as servo motors to power orthosis. In… read more here.
Keywords: orthosis; hand orthosis; hand; twisted coiled ... See more keywords
Artificial musculoskeletal actuation module driven by twisted and coiled soft actuators
Sign Up to like & getrecommendations! Published in 2019 at "Smart Materials and Structures"
DOI: 10.1088/1361-665x/ab5155
Abstract: Skeletal muscles produce contractile motions and a couple of skeletal muscles antagonistically arranged are required to create bidirectional active movements. The musculoskeletal system is mainly composed of two skeletal muscles, joint, bones and tendons, and… read more here.
Keywords: actuation; coiled soft; musculoskeletal actuation; actuation module ... See more keywords
Multilayer modeling framework for analyzing thermo-mechanical properties and responses of twisted and coiled polymer actuators
Sign Up to like & getrecommendations! Published in 2024 at "Smart Materials and Structures"
DOI: 10.1088/1361-665x/ad3532
Abstract: The twisted and coiled polymer actuator (TCPA) has a complex multi-scale structure consisting of crystalline micro-fibrils and an amorphous matrix at the micro-scale, which are organized into a macro-scale fiber. When the polymer fiber undergoes… read more here.
Keywords: twisted coiled; modeling framework; thermal properties; polymer ... See more keywords
Paediatric ankle rehabilitation system based on twisted and coiled polymer actuators
Sign Up to like & getrecommendations! Published in 2024 at "Smart Materials and Structures"
DOI: 10.1088/1361-665x/ad50b0
Abstract: Rehabilitation is crucial for children with physical disabilities arising from various conditions. Traditional exoskeletons, reliant on electric motors and rigid components, making them cumbersome, heavy, and unsuitable for use outside clinical facilities. To overcome these,… read more here.
Keywords: twisted coiled; rehabilitation; polymer actuators; coiled polymer ... See more keywords
Enhanced actuation frequency in actuators using twisted and coiled SMA artificial muscles
Sign Up to like & getrecommendations! Published in 2025 at "Smart Materials and Structures"
DOI: 10.1088/1361-665x/ae1919
Abstract: Artificial muscles powered by shape memory alloys (SMAs) or highly twisted artificial muscles offer promising alternatives to conventional actuators, particularly in applications requiring lightweight, compliant or biomimetic motion. However, these high-force actuators suffer from reduced… read more here.
Keywords: artificial muscles; twisted coiled; sma; actuation frequency ... See more keywords
Design and Control of Lightweight Bionic Arm Driven by Soft Twisted and Coiled Artificial Muscles.
Sign Up to like & getrecommendations! Published in 2022 at "Soft robotics"
DOI: 10.1089/soro.2021.0058
Abstract: Twisted and coiled actuators (TCAs), which are light but capable of producing significant power, were developed in recent times. After their introduction, there have been numerous improvements in performance, including development of techniques such as… read more here.
Keywords: arm driven; control; bionic arm; twisted coiled ... See more keywords
Robust and Adaptive Sampled-Data Control of Twisted and Coiled Artificial Muscles
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Control Systems Letters"
DOI: 10.1109/lcsys.2021.3091414
Abstract: Twisted and Coiled Artificial Muscles (TCAMs) are lightweight actuators providing high power/weight ratio, and can substitute heavy electromagnetic motors and pneumatic artificial muscles in applications that require low weight and high contractile work. In this… read more here.
Keywords: twisted coiled; robust adaptive; control; adaptive sampled ... See more keywords
Self-Sensing of Deflection, Force, and Temperature for Joule-Heated Twisted and Coiled Polymer Muscles via Electrical Impedance
Sign Up to like & getrecommendations! Published in 2017 at "IEEE/ASME Transactions on Mechatronics"
DOI: 10.1109/tmech.2016.2642588
Abstract: The recently introduced twisted and coiled polymer muscle is an inexpensive and lightweight compliant actuator. Incorporation of the muscle in applications that rely on feedback creates the need for deflection and force sensing. In this… read more here.
Keywords: deflection; deflection force; twisted coiled; self sensing ... See more keywords
Thermal Modeling and Characterization of Twisted Coiled Actuators for Upper Limb Wearable Devices
Sign Up to like & getrecommendations! Published in 2021 at "IEEE/ASME Transactions on Mechatronics"
DOI: 10.1109/tmech.2020.3014804
Abstract: A key issue with wearable technology today is the popular use of stiff electrical motors to actuate the joints. Although their performance is ideal in terms of power, bandwidth, accuracy, and speed, they do not… read more here.
Keywords: coiled actuators; actuators upper; characterization twisted; twisted coiled ... See more keywords