Dynamic Modeling, Energy Analysis, and Path Planning of Spherical Robots on Uneven Terrains

Spherical robots are generally comprised of a spherical shell and an internal actuation unit. These robots have a variety of applications ranging from search and rescue to agriculture. Although one of the main advantages of spherical robots is their capability to operate on uneven surfaces, energy analysis and path planning of such systems have been studied only for flat terrains. This work introduces a novel approach to evaluate the dynamic equations, energy consumption, and separation analysis of these robots rolling on uneven terrains. The presented dynamics modeling, separation analysis, and energy analysis allow us to implement path planning algorithms to find an optimal path. One of the advantages of this work is that these algorithms can be used when either the analytical or the empirical information about the terrain is available.

[1]  F. R. Hogan,et al.  Modeling of spherical robots rolling on generic surfaces , 2015 .

[2]  Ran Dai,et al.  Integrated path planning and power management for solar-powered unmanned ground vehicles , 2015, 2015 IEEE International Conference on Robotics and Automation (ICRA).

[3]  Qiang Zhan,et al.  Design, analysis and experiments of an omni-directional spherical robot , 2011, 2011 IEEE International Conference on Robotics and Automation.

[4]  Qiang Zhan,et al.  Near-Optimal Trajectory Planning of a Spherical Mobile Robot for Environment Exploration , 2008, 2008 IEEE Conference on Robotics, Automation and Mechatronics.

[5]  Matthew Spenko,et al.  Modeling and Performance Assessment of the HyTAQ, a Hybrid Terrestrial/Aerial Quadrotor , 2014, IEEE Transactions on Robotics.

[6]  Q. Zhan,et al.  Motion control of spherical robot based on conservation of angular momentum , 2009, 2009 International Conference on Mechatronics and Automation.

[7]  Sunil K. Agrawal,et al.  Spherical rolling robot: a design and motion planning studies , 2000, IEEE Trans. Robotics Autom..

[8]  Antonio Barrientos,et al.  Moisture measurement in crops using spherical robots , 2013, Ind. Robot.

[9]  P. Nikravesh Systematic reduction of multibody equations of motion to a minimal set , 1990 .

[10]  Abhilash Pandya,et al.  A Review of Active Mechanical Driving Principles of Spherical Robots , 2012, Robotics.

[11]  Parviz E. Nikravesh,et al.  Rollocopter: An Energy-Aware Hybrid Aerial-Ground Mobility for Extreme Terrains , 2019, 2019 IEEE Aerospace Conference.