Viscoelastic analysis on a novel adhesive tread-based footpad for Three-Dimensional climbing robots

This paper proposes a novel tread-based footpad for 3-Dimensional (3D) climbing robots. Different structures for 3D climbing robots were compared. To take advantage of the self-preloading ability, the tread-based footpad was designed as a part of the quadruped climbing robot. The footpad utilizes PU (Polyurethane) adhesive belt to adhere. The preloading of adhesion is performed by the translational motion and rotation output by the robot at the connecting point. The relationship between the attitude angle and the peeling angle was studied, and an optimum attitude angle was provided to maximize the adhesive force. The process of the footpad's lifting was studied as well. Finite Element Method (FEM) was used to simulate the process. In experiments the footpad was tested. The footpad is promising in the fabrication of a quadruped 3D climbing robot for long-time stay on steep-sloped surfaces or even ceilings.

[1]  Metin Sitti,et al.  Flat Dry Elastomer Adhesives as Attachment Materials for Climbing Robots , 2010, IEEE Transactions on Robotics.

[2]  Metin Sitti,et al.  Waalbot II: Adhesion Recovery and Improved Performance of a Climbing Robot using Fibrillar Adhesives , 2011, Int. J. Robotics Res..

[3]  K. Kendall.  Thin-film peeling-the elastic term , 1975 .

[4]  Xu Dianguo,et al.  Development & Application of Wall-Climbing Robots , 1999, ICRA.

[5]  Ahmed A. Shabana,et al.  Analysis of Thin Plate Structures Using the Absolute Nodal Coordinate Formulation , 2005 .

[6]  Chang-Soo Han,et al.  A survey of climbing robots: Locomotion and adhesion , 2010 .

[7]  Roger D. Quinn,et al.  A Robot that Climbs Walls using Micro-structured Polymer Feet , 2005, CLAWAR.

[8]  Mark R. Cutkosky,et al.  Smooth Vertical Surface Climbing With Directional Adhesion , 2008, IEEE Transactions on Robotics.

[9]  M. Cutkosky,et al.  Frictional adhesion: a new angle on gecko attachment , 2006, Journal of Experimental Biology.

[10]  Ronald S. Fearing,et al.  Synthetic gecko foot-hair micro/nano-structures for future wall-climbing robots , 2003, 2003 IEEE International Conference on Robotics and Automation (Cat. No.03CH37422).

[11]  Metin Sitti,et al.  Tankbot: A Palm-size, Tank-like Climbing Robot using Soft Elastomer Adhesive Treads , 2010, Int. J. Robotics Res..

[12]  Zhendong Dai,et al.  Progress on gecko-inspired micro/nano-adhesion arrays , 2010 .

[13]  Carlo Menon,et al.  Abigaille II: toward the development of a spider-inspired climbing robot , 2011, Robotica.

[14]  Metin Sitti,et al.  Geckobot: a gecko inspired climbing robot using elastomer adhesives , 2006, Proceedings 2006 IEEE International Conference on Robotics and Automation, 2006. ICRA 2006..

[15]  C. Menon,et al.  Abigaille-I: Towards the development of a spider-inspired climbing robot for space use , 2008, 2008 2nd IEEE RAS & EMBS International Conference on Biomedical Robotics and Biomechatronics.

[16]  Metin Sitti,et al.  A miniature ceiling walking robot with flat tacky elastomeric footpads , 2009, 2009 IEEE International Conference on Robotics and Automation.

[17]  Carlo Menon,et al.  A tailless timing belt climbing platform utilizing dry adhesives with mushroom caps , 2011 .