An Octopus-Inspired Bionic Flexible Gripper for Apple Grasping

Pi, Jie; Li, Jun; Zhou, Kehong; Qian, Mingyan

doi:10.3390/agriculture11101014

Cited by 24 publications

(13 citation statements)

References 33 publications

(38 reference statements)

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“…In response to the above problems, inspired by the suction cup arms of ordinary octopuses and glowing sucker octopuses, a variety of bionic flexible grasping robotic arms that can be used for grasping objects in narrow and complex environments have been developed [ 121 ]. In general, bionic flexible grasping robotic arms can be divided into gripping and winding types according to their different grabbing methods.…”

Section: Research Status and Potential Application Fields Of Biomimet...mentioning

confidence: 99%

Advanced Bionic Attachment Equipment Inspired by the Attachment Performance of Aquatic Organisms: A Review

et al. 2023

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In nature, aquatic organisms have evolved various attachment systems, and their attachment ability has become a specific and mysterious survival skill for them. Therefore, it is significant to study and use their unique attachment surfaces and outstanding attachment characteristics for reference and develop new attachment equipment with excellent performance. Based on this, in this review, the unique non-smooth surface morphologies of their suction cups are classified and the key roles of these special surface morphologies in the attachment process are introduced in detail. The recent research on the attachment capacity of aquatic suction cups and other related attachment studies are described. Emphatically, the research progress of advanced bionic attachment equipment and technology in recent years, including attachment robots, flexible grasping manipulators, suction cup accessories, micro-suction cup patches, etc., is summarized. Finally, the existing problems and challenges in the field of biomimetic attachment are analyzed, and the focus and direction of biomimetic attachment research in the future are pointed out.

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Section: Research Status and Potential Application Fields Of Biomimet...mentioning

confidence: 99%

Advanced Bionic Attachment Equipment Inspired by the Attachment Performance of Aquatic Organisms: A Review

et al. 2023

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“…Researchers are studying how various mechanisms have evolved in nature, aiming to mimic the adaptability and versatility of biological systems without necessarily replicating their exact structure [1][2][3][4]. Such robots aim to impersonate a variety of functions from the animal and plant kingdom, including the suction capabilities of octopus suction cups [5][6][7], the adhesive properties of gecko feet [8], the movement of octopus tentacles [9][10][11], the grasping mechanism found in bird claws [12], the walking gait of insects [13], or the snapping mechanism of the Venus flytrap [14,15].…”

Section: Introductionmentioning

confidence: 99%

Soft octopus-inspired suction cups using dielectric elastomer actuators with sensing capabilities

Jamali,

Mishra,

Goldschmidtboeing

et al. 2024

Bioinspir. Biomim.

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Bioinspired and biomimetic soft grippers are rapidly growing fields. They represent an advancement in soft robotics as they emulate the adaptability and flexibility of biological end effectors. A prominent example of a gripping mechanism found in nature is the octopus tentacle, enabling the animal to attach to rough and irregular surfaces. Inspired by the structure and morphology of the tentacles, this study introduces a novel design, fabrication and characterization method of dielectric elastomer suction cups. To grasp objects, the developed suction cups perform out-of-plane deflections as the suction mechanism. Their attachment mechanism resembles that of their biological counterparts, as they do not require a pre-stretch over a rigid frame or any external hydraulic or pneumatic support to form and hold the dome structure of the suction cups. The realized artificial suction cups demonstrate the capability of generating a negative pressure up to 1.3 kPa in air and grasping and lifting objects with a maximum 58 g weight under an actuation voltage of 6 kV. They also have sensing capabilities to determine whether the grasping was successful without the need of lifting the objects.

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“…The study of grippers in service robots using smart actuation materials and flexible jaws has recently attracted increasing interest (Sriskandarajah and Shetty, 2018; Zhang et al , 2020a; Shintake et al , 2018; Rodrigue et al , 2017; Li et al , 2021). Compared with traditional rigid grippers actuated by electric motors (S and R, 2018), pneumatic (Walker et al , 2020; Zhong et al , 2019; Zhong et al , 2021) and electrohydraulic (Park et al , 2020), etc., the flexible grippers actuated by smart materials are smaller, more adaptable and safer to better interact with unstructured environments and can perform tasks with more postures (Yoon, 2019; Shintake et al , 2018; Ogawa et al , 2022; Wang et al , 2022; Cardin-Catalan et al , 2022; Pi et al , 2021). Service robot grippers usually need to actively grasp objects to avoid falling during the grasping process and can adapt to various shapes of objects well (Zhang et al , 2020b; Wang et al , 2021; Zhang et al , 2022a, 2022b).…”

Section: Introductionmentioning

confidence: 99%

A novel dual-stage shape memory alloy actuated gripper

Liu

Tong

et al. 2022

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Purpose The paper aims to propose a novel dual-stage shape memory alloy (SMA) actuated gripper (DAG), of which the grasp performance is improved through primary and secondary actuation. Design/methodology/approach This paper presents a method of integrating the design of dual-stage actuation modules based on the SMA bias actuation principle to enhance the grasping shape adaptability and force modulation of a DAG. The actuation angle range and grasping performance of the DAG are investigated by thermomechanical analysis and the finite element method based numerical simulation. Findings The results of present experiments and simulations indicate that the actuation angle scope of the DAG is about 20° under no load, which enables the grasping space occupied by an object in the DAG from 60 mm to 120 mm. The grasping force adjusted by changing the input power of the primary main actuation module and secondary fine-tuning actuation module can reach a maximum of 2 N, which is capable of grasping objects of various sizes, weights, shapes, etc. Originality/value The contribution of this paper is to design a DAG based on SMA, and establish the solution methods for the primary main actuation module and secondary fine-tuning actuation module, respectively. It lays a foundation for the research of lightweight and intelligent robotic grippers.

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An Octopus-Inspired Bionic Flexible Gripper for Apple Grasping

Cited by 24 publications

References 33 publications

Advanced Bionic Attachment Equipment Inspired by the Attachment Performance of Aquatic Organisms: A Review

Advanced Bionic Attachment Equipment Inspired by the Attachment Performance of Aquatic Organisms: A Review

Soft octopus-inspired suction cups using dielectric elastomer actuators with sensing capabilities

A novel dual-stage shape memory alloy actuated gripper

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