Various Robots Made from Piezoelectric Materials and Electroactive Polymers: A Review

Sohn, Jung-Woo; Choi, Sung‐Gil

doi:10.15344/2455-7412/2017/122

Cited by 6 publications

(2 citation statements)

References 30 publications

(32 reference statements)

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“…Referring to the performance parameters of various bionic robots described in a review of piezoelectric materials driving robots published by Sohn and Choi [39], we compare the proposed piezoelectric pectoral fin with several recently published robotic fin using smart materials from five aspects, including weight, number of degrees of freedom, output force, minimum start or stop time and average velocity. Table 6 lists the comparison with the previously proposed robotic pectoral fins made of smart materials and electromagnetic motor.…”

Section: Discussionmentioning

confidence: 99%

A novel 3-DoF piezoelectric robotic pectoral fin: design, simulation, and experimental investigation

Liu¹,

Wang²,

Jin³

et al. 2022

Smart Mater. Struct.

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The fish pectoral fins, which play a vital role for fish swimming mobility, can perform three de-gree-of-freedom movements (rowing, feathering, and flapping motions), promoting that a lot of bionic robotic pectoral fins have been proposed and developed. However, these developed robotic pectoral fins driven by electromagnetic motors or smart materials still cannot fully realize the aforementioned three movement modes. To solve this problem, a novel piezoelectric robotic pectoral fin based on the converse piezoelectric effect and friction drive principle is proposed in this study, to achieve the three motion modes. Using a piezoelectric actuator, the robotic pectoral fin can be driven to move with three degree-of-freedom motion modes. Firstly, the overall structures of the proposed piezoelectric robotic pectoral fin and the designed piezoelectric actuator are explained in detailed. Additionally, a finite element simulation and a combination of vibration measurement and impedance analysis experiments are carried out to verify the effectiveness of the proposed piezoelectric actuator. Finally, an experi-mental investigation is conducted to evaluate output performances of the robotic pectoral fin proto-type. Experimental results indicated that 1) the maximum average velocities of the rowing and flap-ping motions of the pectoral fin prototype under an excitation voltage of 550 Vpp are 290 deg/s and 241.7 deg/s, respectively, and the maximum rotation speed of the feathering motion is 6.03 deg/s; 2) The maximum output forces of the rowing and flapping motions of the pectoral fin are 2.156 N and 2.107 N, respectively; 3) Rowing motion start stop response times are13 ms and 10.6ms, flapping motion start and stop response times are 14.2 ms and 9.2 ms, and feathering motion start/stop response times are 34 ms and 56.8 ms, respectively.

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Section: Discussionmentioning

confidence: 99%

A novel 3-DoF piezoelectric robotic pectoral fin: design, simulation, and experimental investigation

Liu¹,

Wang²,

Jin³

et al. 2022

Smart Mater. Struct.

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show abstract

“…Piezoelectricity is a property of material where a voltage or electric charge is produced by the application of mechanical or vibrational forces, and inversely, where a mechanical deformation is achieved when applying an electric field. [ 60 ] Thus, piezoelectric materials can be used to achieve actuation. Nevertheless, to date, the demonstrated piezoelectric materials in soft robots require large voltages that can limit their applications.…”

Section: Overview Of Methods For Soft Actuatorsmentioning

confidence: 99%

Soft Actuators for Soft Robotic Applications: A Review

El‐Atab

Mishra

Al‐Modaf

et al. 2020

Advanced Intelligent Systems

323

224

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The compliant, continuum, and configurable robotics field in general has gained growing interest in the past years especially with the exciting advances in artificial intelligence technology, [1] which could enable various valuable applications ranging from manufacturing to safety and healthcare. [2,3] Soft robots are of notable interest because, unlike their rigid counterpart, they can easily deform while being mechanically resilient, [4,5] adapt to the outer environment without harm to humans, [6] and finally, enable low-cost manufacturing. [7] For robots to interact with the outer environment and complete tasks, a set of sensors and actuators need to be integrated into the system. Soft robots, in specific, present additional challenges because their sensing and actuation devices are generally highly integrated within the body of the robot and its whole functionality. These challenges become even more critical when the soft robot is scaled down to sub-centimeter size as the sensing, power, and data analysis units are moved off-board. As a result, miniaturized soft actuators that respond to various stimuli and show large deformations in addition to mechanical resilience are crucial. These would be particularly promising for application in artificial muscles, microrobots, and micro-manipulators. [8-10] Active and soft materials are promising for this task as they can be actuated through various external stimuli, such as photons, thermal, magnetic and/or electric field. Such materials range from particles, to polymers (either electroactive or shape memory), papers, fluids, shape memory alloys (SMAs), liquid metals, hydrogels, 2D materials, or a combination of these. [6-25] Nevertheless, some materials can be more suitable for a specific set of applications than others; for instance, materials stimulated by the near-infrared (NIR) spectrum are promising for biomedical applications, whereas sunlight-stimulated materials are suitable for nature-inspired soft robots used in outside environments. Various useful metrics are generally used to assess the performance of the actuators; these include the generated stress and strain, Young's modulus or measured stiffness, in addition to their power, work, energy, and force density. In this Review article, however, we focus on the application of the soft actuators in soft robotics where the reported metrics include mode and speed of actuation (or locomotion), power, voltage, current (of the driving signal), lifting force, and weight among others. In this Review article, different active materials that have been developed and used in soft actuators for soft robotics are discussed and grouped by the stimulus that generates the actuation response as shown in Figure 1. The physics of operation, resulting deformations, mechanical resilience, and their pros and cons are presented with a focus on the applications of the different soft

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A strong and fast millimeter-sized soft pneumatic actuator based on alternative pole water electrolysis

Kolivand,

Souri,

Ahmadi

2024

Int J Intell Robot Appl

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Various Robots Made from Piezoelectric Materials and Electroactive Polymers: A Review

Cited by 6 publications

References 30 publications

A novel 3-DoF piezoelectric robotic pectoral fin: design, simulation, and experimental investigation

A novel 3-DoF piezoelectric robotic pectoral fin: design, simulation, and experimental investigation

Soft Actuators for Soft Robotic Applications: A Review

A strong and fast millimeter-sized soft pneumatic actuator based on alternative pole water electrolysis

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