Design of Under-Actuated Soft Adhesion Actuators for Climbing Robots

Since climbing robots mainly rely on adhesion actuators to achieve adhesion, robust adhesion actuators have always been the challenge of climbing robot design. A novel under-actuated soft adhesion actuator (USAA) proposed in this paper for climbing robots can generate adhesion through robot’s load a...

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Main Authors: Zhipeng Liu, Linsen Xu, Xingcan Liang, Jinfu Liu
Format: Article
Language:English
Published: MDPI AG 2022-07-01
Series:Sensors
Subjects:
Online Access:https://www.mdpi.com/1424-8220/22/15/5639
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author Zhipeng Liu
Linsen Xu
Xingcan Liang
Jinfu Liu
author_facet Zhipeng Liu
Linsen Xu
Xingcan Liang
Jinfu Liu
author_sort Zhipeng Liu
collection DOAJ
description Since climbing robots mainly rely on adhesion actuators to achieve adhesion, robust adhesion actuators have always been the challenge of climbing robot design. A novel under-actuated soft adhesion actuator (USAA) proposed in this paper for climbing robots can generate adhesion through robot’s load applied to the actuator. The actuator is composed of a soft film/substrate structure with an annular groove on the substrate and a cavity on the soft film. To fabricate the actuator, we first study the influence of the geometric parameters of the USAA on the maximum adhesion of the actuator by analysis and experiments, and then combine these parameters and the boundary conditions of the static meniscus in the mold to design the mold. Moreover, we fabricate a climbing robot equipped with USAAs and evaluate its performance on horizontal and inclined surfaces with a wide range of characteristics. The USAA can generate strong and controllable adhesion to various smooth and semi-smooth surfaces. Furthermore, the fabricated robot performs well on various surfaces under a certain load (at least 500 g) and speed (369 mm/min) through experiments. It’s adaptability to a variety of surfaces enables a wide range of applications and pushes the boundaries of soft adhesion actuators.
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spelling doaj.art-59c5f7edf946442a940e2e44ee2e64e12023-12-03T13:00:44ZengMDPI AGSensors1424-82202022-07-012215563910.3390/s22155639Design of Under-Actuated Soft Adhesion Actuators for Climbing RobotsZhipeng Liu0Linsen Xu1Xingcan Liang2Jinfu Liu3Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, ChinaCollege of Mechanical and Electrical Engineering, Hohai University, Nanjing 210098, ChinaUniversity of Science and Technology of China, Hefei 230026, ChinaChangzhou Vocationnal Institute of Industry Technology, Changzhou 213018, ChinaSince climbing robots mainly rely on adhesion actuators to achieve adhesion, robust adhesion actuators have always been the challenge of climbing robot design. A novel under-actuated soft adhesion actuator (USAA) proposed in this paper for climbing robots can generate adhesion through robot’s load applied to the actuator. The actuator is composed of a soft film/substrate structure with an annular groove on the substrate and a cavity on the soft film. To fabricate the actuator, we first study the influence of the geometric parameters of the USAA on the maximum adhesion of the actuator by analysis and experiments, and then combine these parameters and the boundary conditions of the static meniscus in the mold to design the mold. Moreover, we fabricate a climbing robot equipped with USAAs and evaluate its performance on horizontal and inclined surfaces with a wide range of characteristics. The USAA can generate strong and controllable adhesion to various smooth and semi-smooth surfaces. Furthermore, the fabricated robot performs well on various surfaces under a certain load (at least 500 g) and speed (369 mm/min) through experiments. It’s adaptability to a variety of surfaces enables a wide range of applications and pushes the boundaries of soft adhesion actuators.https://www.mdpi.com/1424-8220/22/15/5639under-actuated soft adhesion actuatorload-capacity climbing devicecontrollable adhesionadaptability to various surfaces
spellingShingle Zhipeng Liu
Linsen Xu
Xingcan Liang
Jinfu Liu
Design of Under-Actuated Soft Adhesion Actuators for Climbing Robots
Sensors
under-actuated soft adhesion actuator
load-capacity climbing device
controllable adhesion
adaptability to various surfaces
title Design of Under-Actuated Soft Adhesion Actuators for Climbing Robots
title_full Design of Under-Actuated Soft Adhesion Actuators for Climbing Robots
title_fullStr Design of Under-Actuated Soft Adhesion Actuators for Climbing Robots
title_full_unstemmed Design of Under-Actuated Soft Adhesion Actuators for Climbing Robots
title_short Design of Under-Actuated Soft Adhesion Actuators for Climbing Robots
title_sort design of under actuated soft adhesion actuators for climbing robots
topic under-actuated soft adhesion actuator
load-capacity climbing device
controllable adhesion
adaptability to various surfaces
url https://www.mdpi.com/1424-8220/22/15/5639
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AT linsenxu designofunderactuatedsoftadhesionactuatorsforclimbingrobots
AT xingcanliang designofunderactuatedsoftadhesionactuatorsforclimbingrobots
AT jinfuliu designofunderactuatedsoftadhesionactuatorsforclimbingrobots