Motion Planning and Feedback Control of Rolling Bodies

J. Zachary Woodruff*, Shufeng Ren, Kevin M. Lynch

*Corresponding author for this work

Research output: Contribution to journalArticle

Abstract

This paper examines the problem of planning and stabilizing the trajectory of one smooth body rolling on the surface of another. The two control inputs are the angular velocity of the moving body about two orthogonal axes in the contact tangent plane; spinning about the contact normal is not allowed. To achieve robustness and computational efficiency, our approach to trajectory planning is based on solving a series of optimization problems of increasing complexity. To stabilize the trajectory in the face of perturbations, we use a linear quadratic regulator. We apply the approach to examples of a sphere rolling on a sphere and an ellipsoid rolling on an ellipsoid. Finally, we explore the robustness and performance of the motion planner. Although the planner is based on non-convex optimization, in practice the planner finds solutions to nearly all randomly-generated tasks, and the solution trajectories are smoother and shorter than those found in previous work in the literature.

Original languageEnglish (US)
Article number8995529
Pages (from-to)31780-31791
Number of pages12
JournalIEEE Access
Volume8
DOIs
StatePublished - Jan 1 2020

Keywords

  • controllability
  • motion planning
  • Robot kinematics
  • rolling
  • state feedback

ASJC Scopus subject areas

  • Computer Science(all)
  • Materials Science(all)
  • Engineering(all)

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