Oriol Bohigas


Kinematics and Robot Design Group
Institut de Robòtica i Informàtica Industrial (CSIC-UPC)
obohigas (at) iri.upc.edu

I recently finished my PhD in Robotics at the Institut de Robòtica i Informàtica Industrial. My advisors were Lluís Ros and Montserrat Manubens.

My research seeks to contribute to the general understanding on how the motions of complex multibody systems can be predicted, planned, or controlled in an efficient and reliable way. In particular, I am now interested in robot dynamics and control, which I would like to combine with my growing interest for robot vision and sensing. I am currently working in the developoment, motion planning, and control of parallel robots, and of a cable-driven hexapod taking into account collision and singularity avoidance, force feasibility, and surface-following constraints.

Before my PhD, I worked as an orbital mechanics engineer at the French Space Agency (Toulouse, France), where I developed methods and tools for space mechanics and space flight dynamics for mission analysis and design. This work resulted in the release of the CelestLab toolbox for Scilab.

A version of my resume can be seen here.

PhD THESIS

The purpose of my thesis was to take advantage of recent advances in the field of numerical methods in order to propose general and robust methods for the computation and avoidance of singularities of robotic manipulators:

Numerical Computation and Avoidance of Manipulator Singularities.

INTERNATIONAL JOURNALS

The CUIK Suite: Motion Analysis of Closed-chain Multibody Systems
J.M. Porta, L. Ros, O. Bohigas, M. Manubens, C. Rosales, L. Jaillet
IEEE Robotics and Automation Magazine, 2014
[pdf] - [CUIK Suite]



A General Method for the Numerical Computation of Manipulator Singularity Sets
O. Bohigas, D. Zlatanov, L. Ros, M. Manubens, J.M. Porta
IEEE Transactions on Robotics, 2013
[pdf] - [animation of Fig.11, left] - [animation of Fig.11, right]



Planning Singularity-free Paths on Closed-Chain Manipulators
O. Bohigas, M. E. Henderson, L. Ros, M. Manubens, and J.M. Porta
IEEE Transactions on Robotics, 2013
[pdf] - [animation of Fig.11] - [animation of Fig.12]
M. E. Henderson (from IBM's T.J. Watson Research Center) presented this work at the "Advanced Computational and Experimental Techniques in Nonlinear Dynamics" International School and Workshop in Cusco, Peru. [his slides]



Singularities of Non-redundant manipulators: A Short Account and a Method for their Computation in the Planar Case
O. Bohigas, M. Manubens, L. Ros
Mechanism and Machine Theory, 2013
[pdf] - [animation of Fig.8] - [animation of Fig.9]



A Linear Relaxation Method for Computing Workspace Slices of the Stewart Platform
O. Bohigas, M. Manubens, L. Ros
ASME Journal of Mechanisms and Robotics, 2013
[pdf]



Randomized Path Planning on Manifolds based on Higher-Dimensional Continuation
J. M. Porta, L. Jaillet, O. Bohigas
International Journal of Robotics Research, 2012
[pdf]



A Complete Method for Workspace Boundary Determination on General Structure Manipulators
O. Bohigas, L. Ros, M. Manubens
IEEE Transactions on Robotics, 2012
[pdf] - [animation of Fig.11] - [animation of Fig.13]


BOOK CHAPTERS

Navigating the Wrench-feasible C-space of Cable-driven Hexapods
O. Bohigas, M. Manubens, L. Ros
In Cable-Driven Parallel Robots, T. Bruckmann and A. Pott (editors)
Vol. 12 of Mechanisms and Machine Science. Springer, 2012
[pdf] - [animation of Fig.7]



Planning Singularity-free Force-feasible Paths on the Stewart Platform
O. Bohigas, M. Manubens, L. Ros
In Latest Advances in Robot Kinematics, J. Lenarcic and M. Husty (editors)
Springer, 2012
[pdf] - [slides] - [animation of Fig.4, right]



A Complete Method for Workspace Boundary Determination
O. Bohigas, L.Ros, M. Manubens
In Advances in Robot Kinematics, J. Lenarcic and M. Stanisic (editors)
Springer, 2010
[pdf] - [slides] - [slides video 1] - [slides video 2]


INTERNATIONAL CONFERENCES

An open-source toolbox for motion analysis of closed-chain mechanisms
L. Ros, J. Porta, O. Bohigas, M. Manubens, C. Rosales, and L. Jaillet
6th International Workshop on Computational Kinematics, CK2013
[pdf] - [CUIK Suite]



On the Numerical Classification of the Singularities of Robot Manipulators
O. Bohigas, D. Zlatanov, M. Manubens, L. Ros
ASME International Design Engineering Technical Conference, IDETC 2012
[pdf] - [slides]



Numerical Computation of Manipulator Singularities
O. Bohigas, D. Zlatanov, L. Ros, M. Manubens, J.M. Porta
IEEE International Conference on Robotics and Automation, ICRA 2012
[pdf] - [slides]



A Singularity-free Path Planner for Closed-chain Manipulators
O. Bohigas, M.E. Henderson, L. Ros, J.M. Porta
IEEE International Conference on Robotics and Automation, ICRA 2012
[pdf] - [slides]



A Unified Method for Computing Position and Orientation Workspaces of General Stewart Platforms
O. Bohigas, L. Ros, M. Manubens
ASME International Design Engineering Technical Conference, IDETC 2011
[pdf] - [slides]


TECHNICAL REPORTS

Branch switching from singular points in higher-dimensional continuation
O. Bohigas
Technical Report IRI-TR-11-04, Institut de Robòtica i Informàtica Industrial, CSIC-UPC, 2011
[pdf]