[1].Behaviours in Attachment-Detachment Cycles of Geckos in Response to Inclines and Locomotion Orientations[J].Asian Herpetological Research,2022,13(2):125-136.[doi:10.16373/j.cnki.ahr.210061]
　Weijia ZONG,Zhouyi WANG*,Bingcheng WANG,et al.Behaviours in Attachment-Detachment Cycles of Geckos in Response to Inclines and Locomotion Orientations[J].Asian Herpetological Research(AHR),2022,13(2):125-136.[doi:10.16373/j.cnki.ahr.210061]
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Behaviours in Attachment-Detachment Cycles of Geckos in Response to Inclines and Locomotion Orientations()
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Asian Herpetological Research[ISSN:2095-0357/CN:51-1735/Q]

卷:
13
期数:
2022年2期
页码:
125-136
栏目:
出版日期:
2022-06-22

文章信息/Info

Title:
Behaviours in Attachment-Detachment Cycles of Geckos in Response to Inclines and Locomotion Orientations
文章编号:
AHR-2021-0061
Author(s):
Weijia ZONG1;  Zhouyi WANG1*;  Bingcheng WANG1;  Zhourong ZHANG1;  Chang YIN2 and Zhendong DAI1*
1 Institute of Bio-inspired Structure and Surface Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, Jiangsu, China
2 Civil Aviation College, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, Jiangsu, China
Keywords:
attachment-detachment cycle;  Gekko gecko;  inclines;  locomotion behaviours;  locomotion orientation
DOI:
10.16373/j.cnki.ahr.210061
Abstract:
Geckos can move quickly in various environments by efficiently controlling their complex adhesive toe pads. The locomotion behaviours observed in the attachment-detachment (A-D) cycle of their toe pads in response to changes in their environment should be studied to understand the adaptive behavioural characteristics of such toe pads. The lack of systematic research on the entire A-D cycle, including the release, swing, contact, and adhesion stages, limits the comprehension of the adhesive locomotion mechanism. The A-D cycle of Gekko gecko that facilitates the foot locomotion on inclined and vertical surfaces was investigated to clarify the locomotion behaviours in different stages. Results show that the change trends of foot locomotor angles (yaw and pitch) during the entire A-D cycle remain unchanged in response to various substrates. The bending angles (fore 41°; hind 51°) and contact time percentages (fore 7.42%; hind 7.44%) in the contact stage as well as the forefoot angle ranges (yaw: 163.09°; pitch: 308.68°) in the A-D cycle also remain constant across all substrates. These invariant foot locomotion behaviours during the swing and contact stages suggest that the foot behaviours are weakly related to the forces acting on the foot, which change according to the environment. Furthermore, the forefoot and hindfoot have different anatomical structure and functional demands, thus, the angle range of forefoot locomotion is larger than that of hindfoot locomotion, and the pitch angle change trend of the forefoot is opposite to that of the hindfoot. The diverse and complex locomotion control of the adhesive toe pads for various environments is reduced by the consistent behaviours in the gecko’s A-D cycle, such as the constant postures in the swing and contact stages. This study provides insight into the adhesive locomotion mechanism of geckos and can facilitate further research on the effective design and control of adhesion robots.

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更新日期/Last Update: 2022-06-25