Study on the Optimal Design for Cavitation Reduction in the Vortex Suction Cup for Underwater Climbing Robot

Zhao, Yibing; Yang, Canjun; Chen, Yanhu; Li, Jia; Liu, Siyue; Ye, Guoyun

doi:10.3390/jmse10010070

Cited by 8 publications

(4 citation statements)

References 30 publications

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“…This novel mechanism can adsorb on coarse walls with a much lower frictional resistance because it is a noncontact adsorption mechanism. A similar principle is proposed for adsorption in an underwater environment by injecting high-pressure water inside a vortex suction cup via two axisymmetric side-distributed inlets to create a negative pressure area in the centre [ 61 ].…”

Section: Adhesion Principles For Climbing Robotsmentioning

confidence: 99%

Climbing robots for manufacturing

Tao

Gong

Ding

2023

National Science Review

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Robotized intelligent manufacturing is a growing trend in the manufacturing of large and complex components in aviation, aerospace, marine engineering and other industries. With their expansive workspaces and flexible deployment, climbing manufacturing robots can create a revolutionary manufacturing paradigm for large and complex components. This paper defines the climbing manufacturing robot based on the application status of climbing robots and then analyses four key technical requirements: adhesion, locomotion, localisation and control. Subsequently, the current research status of climbing robots in these four areas is classified and reviewed, along with a clarification of the research frontiers and trends in each area, and the applicability of the relevant research to manufacturing-oriented climbing robotic systems is analysed. Finally, by concluding the development trends of robotized intelligent manufacturing equipment in terms of manufacturing dimension and scale, environmental adaptability and cluster collaboration capability, we clarify the major challenges for climbing manufacturing robots in terms of adhesion principles, motion mechanisms, positioning technology and control methods, and propose future research directions in these fields.

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Section: Adhesion Principles For Climbing Robotsmentioning

confidence: 99%

Climbing robots for manufacturing

Tao

Gong

Ding

2023

National Science Review

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“…(g) Underwater crawling robot with liquid metal smart feet [107]. (h) Underwater climbing robot using the principle of negative pressure (red arrows indicate the direction of the flows) [108]. (i) ROVING BAT [109,110].…”

Section: Underwater Adhesion Systemsmentioning

confidence: 99%

mentioning

confidence: 99%

Adhesion Behavior in Fish: From Structures to Applications

Wang,

Zheng

et al. 2023

Biomimetics

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In nature, some fish can adhere tightly to the surface of stones, aquatic plants, and even other fish bodies. This adhesion behavior allows these fish to fix, eat, hide, and migrate in complex and variable aquatic environments. The adhesion function is realized by the special mouth and sucker tissue of fish. Inspired by adhesion fish, extensive research has recently been carried out. Therefore, this paper presents a brief overview to better explore underwater adhesion mechanisms and provide bionic applications. Firstly, the adhesion organs and structures of biological prototypes (e.g., clingfish, remora, Garra, suckermouth catfish, hill stream loach, and goby) are presented separately, and the underwater adhesion mechanisms are analyzed. Then, based on bionics, it is explained that the adhesion structures and components are designed and created for applications (e.g., flexible gripping adhesive discs and adhesive motion devices). Furthermore, we offer our perspectives on the limitations and future directions.

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“…The authors Zhu et al [22] designed an underwater vortex suction cup powered by electricity, and studied the correlation between impeller speed, adsorption gap, and adhesion force. Zhao et al [23] devised a method involving the utilization of a vortex suction cup that introduces high-pressure water tangentially to induce rapid rotation of the chamber, thereby generating adhesion force, successfully deploying it in underwater robots. Fan et al [24] investigated the impact of various factors, including the number of impeller blades, cup shell configuration, adsorption gap, and impeller velocity, on the adhesion capability of suction cups.…”

Section: Introductionmentioning

confidence: 99%

Study on the Adsorption Performance of a Vortex Suction Cup under Varying Diameters of Underwater Structure Tubes

Tang,

Du,

Liu

et al. 2024

JMSE

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In certain precision work scenarios, underwater robots require the ability to adhere to surfaces in order to perform tasks effectively. An efficient and stable suction device plays a pivotal role in the functionality of such underwater robots. The vortex suction cup, distinguished by its uncomplicated design, high suction efficiency, and capability for non-contact adhesion, holds significant promise for integration into underwater robotic systems. This paper presents a novel design for a vortex suction cup and investigates its suction force and torque when encountering surfaces with varying curvature radii using Computational Fluid Dynamics (CFD) simulations and experimental testing. These findings offer valuable insights for the development of robots capable of adapting to underwater structures of different dimensions. Results from both experiments and simulations indicate that reducing the curvature radius of the adhered surface results in a decrease in suction force and an increase in torque exerted on the suction cup. As the adhered surface transitions from flat to a curvature radius of 150 mm, the adhesion force of our proposed vortex suction cup decreases by approximately 10%, while the torque increases by approximately 20% to 30%. Consequently, the adhesion efficiency of the suction cup decreases by about 25% to 30%.

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Study on the Optimal Design for Cavitation Reduction in the Vortex Suction Cup for Underwater Climbing Robot

Cited by 8 publications

References 30 publications

Climbing robots for manufacturing

Climbing robots for manufacturing

Adhesion Behavior in Fish: From Structures to Applications

Study on the Adsorption Performance of a Vortex Suction Cup under Varying Diameters of Underwater Structure Tubes

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