scholarly journals High performance and tunable artificial muscle based on two-way shape memory polymer

RSC Advances ◽  
2017 ◽  
Vol 7 (2) ◽  
pp. 1127-1136 ◽  
Author(s):  
J. Fan ◽  
G. Li

Polymeric artificial muscle by twist insertion in precursor fiber is a recent discovery. This study shows that chemically cross-linked two-way shape memory polymer muscles have remarkable and tunable axial actuation with lower actuation temperature.

2019 ◽  
Vol 295 ◽  
pp. 637-642 ◽  
Author(s):  
Shigeyoshi Yahara ◽  
Shuichi Wakimoto ◽  
Takefumi Kanda ◽  
Kouya Matsushita

2019 ◽  
Vol 11 (35) ◽  
pp. 32408-32413 ◽  
Author(s):  
Yue Zhang ◽  
Limei Huang ◽  
Huijie Song ◽  
Chujun Ni ◽  
Jingjun Wu ◽  
...  

2012 ◽  
Vol 24 (3) ◽  
pp. 472-479 ◽  
Author(s):  
Kazuto Takashima ◽  
◽  
Toshiro Noritsugu ◽  
Jonathan Rossiter ◽  
Shijie Guo ◽  
...  

A novel pneumatic artificial muscle actuator is presented which is based on the design of a conventional curved type pneumatic bellows actuator. By inhibiting the extension of one side with fiber reinforcement, bending motion can be induced when air is supplied to the internal bladder. In this study, we developed a new actuator by replacing the fiber reinforcement with a Shape-Memory Polymer (SMP). The SMP can be deformed above its glass transition temperature (Tg) and maintains a rigid shape after it is cooled below Tg. When next heated above Tg, it returns to its initial shape. When only part of our actuator is warmed above Tg, only that portion of the SMP is soft and can actuate. Therefore, the direction of the motion can be controlled by heating. Moreover, our actuator can be deformed by an external force above Tg and fixed by cooling it below Tg.


2017 ◽  
Vol 126 ◽  
pp. 219-225 ◽  
Author(s):  
Yu Ying Clarrisa Choong ◽  
Saeed Maleksaeedi ◽  
Hengky Eng ◽  
Jun Wei ◽  
Pei-Chen Su

2010 ◽  
Vol 164 (1-2) ◽  
pp. 116-124 ◽  
Author(s):  
Kazuto Takashima ◽  
Jonathan Rossiter ◽  
Toshiharu Mukai

2016 ◽  
Vol 37 (3) ◽  
pp. 869-877 ◽  
Author(s):  
Yongkang Bai ◽  
Yuejun Liu ◽  
Qihua Wang

2021 ◽  
Vol 33 (3) ◽  
pp. 653-664
Author(s):  
Kazuto Takashima ◽  
Daiki Iwamoto ◽  
Shun Oshiro ◽  
Toshiro Noritsugu ◽  
Toshiharu Mukai ◽  
...  

We have developed a pneumatic artificial rubber muscle having a bending direction that can be changed using two shape-memory polymer (SMP) sheets, the stiffness of which depends on the temperature. In the present study, we attached two SMP sheets with embedded electrical heating wires to both sides of a pneumatic artificial rubber muscle in order to realize multidirectional actuation and evaluated the basic characteristics of the artificial muscle. The actuator is based on the design of a conventional curved-type artificial rubber muscle. Since only a heated SMP sheet becomes soft, the rigid SMP sheet inhibits the extension of the side of the actuator. Therefore, bending motion can be induced when air is supplied to the internal bladder. By controlling the temperature of the SMP sheets, the bending direction of the prototype actuator could be changed. Namely, three kinds of motions, such as two-directional bending and axial extension, became possible. Moreover, we improved the manufacturing method and the structure of the artificial muscle, such as the stitching method and the SMP sheet thickness, and evaluated the characteristics of the two-directional bending and the axial extension motions of the prototype actuator. We also calculated the theoretical values and compared these values with the experimental results. Furthermore, we examined the application of the actuators to a robot hand. Using the two-directional motion of the actuator, the proposed robot hand can grasp either small or large objects. The experimental results conducted using this prototype confirm the feasibility of the newly proposed actuator.


2010 ◽  
Author(s):  
Kazuto Takashima ◽  
Jonathan Rossiter ◽  
Toshiharu Mukai

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