A Point-Wise Model of Adhesion Suitable for Real-Time Applications of Bio-Inspired Climbing Robots
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Bio-inspired climbing robots relying on adhesion systems are believed to become essential tools for several industrial applications in the near future. In recent years, research has mainly focused on modeling micro-scale adhesion phenomena; a macro-scale adhesion model has however to be developed for the design of macro-scale systems. In this paper a macro-model of adhesion suitable for real-time applications is presented; it relies on a continuous representation of adhesion. An extension of the von Mises criterion is proposed as failure adhesion criterion in order to estimate the occurrence of detachment at any point of the contacting surface. An experimental set up has been designed in order to define the parameters of the model. A semi-automatic process has been developed to ensure repeatability and accuracy of the results. Polydimethylsiloxane (PDMS), which has revealed promising adhesive features for robotic use, has been used during the experimental phase. The macro-model of adhesion has been implemented in a multi-body dynamics environment based on Open Dynamics Engine (ODE) to simulate a spider-inspired robot. Simulations based on this model are suitable to represent the behaviour of climbing robots and also to optimize their design.
Keywordsmodeling macro-scale climbing robots simulation PDMS adhesion failure criterion
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- Zhang H, Zhang J, Zong G. Realization of a service climbing robot for glass-wall cleaning. IEEE International Conference on Robotics and Biomimetics, Shenyang, China, 2004, 395–400.Google Scholar
- Gasparetto A, Vidoni R, Seidl T. Attaching Mechanisms and Strategies Inspired by the Spiders’ Leg. European Space Agency, the Advanced Concepts Team, Ariadna Final Report (06/6201), 2008.Google Scholar
- Menon C, Li Y, Sameoto D, Martens C. Abigaille-I: Towards the development of a spider-inspired climbing robot for space use. International Conference on Biomedical Robotics and Biomechatronics, Scottsdale, USA, 2008.Google Scholar
- Wei T E, Quinn R D, Ritzmann R E. A robot designed for walking and climbing based on abstracted cockroach locomotion mechanims. Proceedings of IEEE/A SME International Conference on Advanced Intelligent Mechatronics, Monterey, USA, 2005, 1471–1476.Google Scholar
- Sameoto D, Li Y, Menon C. Micromask generation for polymer morphology control: Nanohair fabrication for synthetic dry adhesives. International Conferences on Smart Materials Structures Systems, Acireale, Italy, 2008.Google Scholar
- Pugno N M. Towards a Spiderman suit: Large invisible cables and self-cleaning releasable superadhesive materials. Journal of Physics: Condensed Matter, 2007, 19, 395001.Google Scholar
- Shan J, Mei T, Ni L, Chen S, Chu J. Fabrication and adhesive force analysis of biomimetic gecko foot-hair array. The 1st IEEE Internatinal Conference on Nano/Micro Engineered and Molecular Systems, Zhuhai China, 2006, 1546–1549.Google Scholar
- Dow Corning. Sylgard 184 Silicone Elastomer Kit,[2008-07-01], http://www.dowcorning.com/applications/search/products/default.aspx?R=131EN&country=CAN
- Armani D, Liu C. Re-configurable fluid circuits by PDMS elastomer micromachining. The 12th International Conference on Micro Electro Mechanical Systems, Orlando, USA, 1998, 222–227.Google Scholar
- Russell S. Open Dynamic Engine (ODE): Open source and high performance library for simulating rigid body dynamics, [2008-07-01], http://www.ode.org/