Integrated fabrication process with multiple optimized factors for high power density of IPMC actuator

Zhu, Zicai; Bian, Changsheng; Bai, Wanfa; Hu, Qiao; Chen, Suijun

doi:10.1080/19475411.2022.2133187

Cited by 7 publications

(3 citation statements)

References 27 publications

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“…With the continuous development and application of intelligent actuation technology in the field of robotics, more and more researchers have applied it to the soft gripper of robots [1][2][3][4][5][6]. The soft gripper has a soft structure and adaptability similar to living organisms, which can better adapt to various surfaces, so it has a wide application prospect in the fields of medical treatment, environmental protection, education and other fields [7][8][9].…”

Section: Introductionmentioning

confidence: 99%

A fast actuated soft gripper based on shape memory alloy wires

Li,

Ma,

et al. 2024

Smart Mater. Struct.

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The application of shape memory alloy (SMA) actuated soft grippers is limited by their slow recovery speed. In order to further expand their application range, as one of the solutions to address this limitation, this paper proposes a fast actuated soft gripper based on shape memory alloy wire active heat dissipation and elastic rib combination to meet the rapid actuation and recovery. The structure primarily consists of a heat dissipation module capable of winding SMA wire and a soft structure resembling a scorpion tail with embedded supper elastic SMA wire. The geometric structure model, dynamics and SMA constitutive model and finite element model of the soft gripper are established, and the lateral deformation of soft bionic scorpion tail end is analyzed through simulations and experiments. In addition, the force in designed soft gripper tip and its ability to grasp different objects are also studied through experiments. The results show that the addition of a cooling fan increased the recovery rate by about 25%, and the force in soft bionic scorpion tail end can reach about 0.12 N. The designed soft gripper can successfully grasp objects with different softness, shape, size and weight. It lays a theoretical foundation and technical support for the development of soft grippers actuated by SMA in the future.

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Section: Introductionmentioning

confidence: 99%

A fast actuated soft gripper based on shape memory alloy wires

Li,

Ma,

et al. 2024

Smart Mater. Struct.

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“…SMPs have many advantages such as high deformation, low density and high elasticity and therefore have a wide range of applications in many fields such as aerospace, smart robotics and minimally invasive medicine [4]. SMP combined with 3D printing offers greater design flexibility and ease of processing than other smart materials such as shape memory alloys, liquid crystal elastomers and ionic polymer metal composites [5][6][7][8]. The 3D printing process allows complex and precise geometries to be prepared simply and at low cost while maintaining excellent shape memory properties.…”

Section: Introductionmentioning

confidence: 99%

Experimental study and numerical simulation of morphing characteristics of bistable laminates embedded with 3D printed shape memory polymers

Zhang,

Yang,

Pan

et al. 2024

Smart Mater. Struct.

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The morphing characteristics of bistable laminates embedded with 3D printed shape memory polymers are investigated. Bistable laminates have potential applications in soft robotics due to their two stable states and ability to deform through both snap-through and snap-back processes. For example, a bistable laminate is triggered to snap back by a pneumatic-actuated method that allows it to grip objects. By reducing the snap-back load and increasing the snap-through load, the bistable laminate can be more easily driven to deform while maintaining good stiffness in its first stable state. 3D printed shape memory polymers have shape memory and recovery, A design method for suppressing and controlling the deformation of bistable laminates using 3D printed shape memory polymers is proposed in this paper. A numerical model of viscoelasticity of the laminate is established to study its deformation characteristics, and the numerical results are compared with experimental results with good agreement. The effect of shape memory polymers on the snap load and principal curvature of bistable laminates is also investigated. Finally, the interlayer interface bonding of the bistable laminates is examined in microscopic perspective. The results demonstrate that 3D printed shape memory polymers can effectively enhance the snap-through load and reduce the snap-back load of bistable laminates, achieving deformation suppression and control while maintaining good interlaminar bonding with carbon fiber composites. This study provides new insights and practical significance for the deformation suppression and active control of bistable structures.

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“…They are employed in the creation of miniature robots. Additionally, soft actuators [4,5] such as DEAs [6], LCE [7], IPMC [8], and PVDF [9] show promising potential in robot manufacturing. Both types of actuators have achieved significant success in miniaturization, movement speed, and agility.…”

mentioning

confidence: 99%

Insect‐scale fast moving and ultra‐load‐carrying robot

Zhao,

Wang,

et al. 2024

Electronics Letters

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The load capacity of small robots plays a crucial role in practical applications. Drawing inspiration from biological load‐carrying mechanisms, a crawling robot based on piezoelectric bending is proposed. It is an insect‐scale piezoelectric‐driven crawling robot with a load capacity of 100.4 times its weight, which is the highest measured among published insect‐scale robots. The robot was designed and fabricated in a monolithic manner, enhancing the assembly efficiency of the robot. It weighs only 0.68 g and has a length of only 40 mm. The robot can achieve rapid movement and jumping by using two different driving methods. Its maximum forward speed is 7.77 BL/s (body lengths per second), and it can reach a forward speed of 1 BL/s under a load of 41.6 g, the maximum load of the robot is 68.24 g. It can move rapidly, climb slopes, traverse ground obstacles, and pass through pipes, similar to an insect.

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Integrated fabrication process with multiple optimized factors for high power density of IPMC actuator

Cited by 7 publications

References 27 publications

A fast actuated soft gripper based on shape memory alloy wires

A fast actuated soft gripper based on shape memory alloy wires

Experimental study and numerical simulation of morphing characteristics of bistable laminates embedded with 3D printed shape memory polymers

Insect‐scale fast moving and ultra‐load‐carrying robot

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