Sign in to use this feature.

Years

Between: -

Subjects

remove_circle_outline
remove_circle_outline

Journals

Article Types

Countries / Regions

Search Results (2)

Search Parameters:
Keywords = twisted and coiled polymer actuator (TCPA)

Order results
Result details
Results per page
Select all
Export citation of selected articles as:
14 pages, 5187 KiB  
Article
Effect of Twisted and Coiled Polymer Actuator (TCPA) on Crack Dispersion Properties of HPFRCC
by Takatsune Kikuta and Tomoya Nishiwaki
Materials 2022, 15(16), 5701; https://doi.org/10.3390/ma15165701 - 18 Aug 2022
Cited by 1 | Viewed by 1666
Abstract
To achieve high durability and excellent mechanical performances of cementitious materials, research on fiber-reinforced cementitious composites (FRCC) containing various fibers has been actively conducted. On the other hand, in robotics and other fields, research on artificial muscles using Twisted and Coiled Polymer Actuator [...] Read more.
To achieve high durability and excellent mechanical performances of cementitious materials, research on fiber-reinforced cementitious composites (FRCC) containing various fibers has been actively conducted. On the other hand, in robotics and other fields, research on artificial muscles using Twisted and Coiled Polymer Actuator (TCPA), which have similar functions to human muscle fibers, has attracted much attention. In this study, use of this TCPA as a reinforcing fiber in high performance FRCC (HPFRCC) was proposed. The employed TCPA has a structure of coiled nylon fibers with wrapping stainless-steel fibers. The effect of the TCPA and its shrinkage motion on the crack dispersion properties of HPFRCC was investigated. The experimental results showed that the strain-hardening with multiple cracks in HPFRCC continued up to more than 7% of the ultimate strain when the TCPA was electrically stimulated to shrinkage motion. This information indicates that the TCPA has high potential to further improve HPFRCC performance. Full article
(This article belongs to the Special Issue Advances in Functional Cement and Concrete Materials)
Show Figures

Figure 1

13 pages, 3991 KiB  
Article
Simple Controller Design Based on Internal Model Control for Twisted and Coiled Polymer Actuator
by Motoya Suzuki and Norihiro Kamamichi
Actuators 2018, 7(3), 33; https://doi.org/10.3390/act7030033 - 25 Jun 2018
Cited by 8 | Viewed by 6948
Abstract
A twisted and coiled polymer actuator (TCPA) is a novel soft actuator. TCPA is fabricated by twisting nylon fibers. The TCPA extends and contracts by heating and cooling. By applying conductive nylon fibers to the actuator, the electroactive TCPA can be driven by [...] Read more.
A twisted and coiled polymer actuator (TCPA) is a novel soft actuator. TCPA is fabricated by twisting nylon fibers. The TCPA extends and contracts by heating and cooling. By applying conductive nylon fibers to the actuator, the electroactive TCPA can be driven by the Joule heating of the applied voltage. It has noteworthy properties such as a high power/mass ratio, large deformation, and low hysteresis. By applying conductive nylon fibers to the actuator, it can be driven by the electrical input. From these properties, many soft robots using the electroactive TCPA have been demonstrated, such as robotic hands, locomotion robots, robot skins, biomimetic robots, and so on. In this paper, to realize a simple controller design, an internal model control based on the identified model is applied. The applied controller can be designed easily without experience in parameter-tuning based on controls theory. The validity of the applied method is investigated through experiments. Full article
(This article belongs to the Special Issue Electroactive Polymer Actuators for Soft Robotics)
Show Figures

Figure 1

Back to TopTop