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» On Invariant Manifolds of Dynamical Systems in Lie Algebras
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CDC
2008
IEEE
124views Control Systems» more  CDC 2008»
14 years 1 months ago
A passive 2DOF walker: Finding gait cycles using virtual holonomic constraints
— A planar compass-like biped on a shallow slope is the simplest model of a passive walker. It is a two-degrees-offreedom impulsive mechanical system known to possess periodic so...
Leonid B. Freidovich, Uwe Mettin, Anton S. Shiriae...
CDC
2008
IEEE
132views Control Systems» more  CDC 2008»
13 years 8 months ago
Global symplectic uncertainty propagation on SO(3)
Abstract-- This paper introduces a global uncertainty propagation scheme for the attitude dynamics of a rigid body, through a combination of numerical parametric uncertainty techni...
Taeyoung Lee, Melvin Leok, N. Harris McClamroch
MCSS
2006
Springer
13 years 6 months ago
Global complete observability and output-to-state stability imply the existence of a globally convergent observer
In this paper we consider systems which are globally completly observable and output-to-state stable. The former property guarantees the existence of coordinates such that the dyna...
Alessandro Astolfi, Laurent Praly
IROS
2007
IEEE
136views Robotics» more  IROS 2007»
14 years 1 months ago
Task-induced symmetry and reduction in kinematic systems with application to needle steering
— Lie group symmetry in a mechanical system can lead to a dimensional reduction in its dynamical equations. Typically, the symmetries that one exploits are intrinsic to the mecha...
Vinutha Kallem, Dong Eui Chang, Noah J. Cowan
ICRA
2003
IEEE
133views Robotics» more  ICRA 2003»
13 years 12 months ago
Design and simulation of robust composite controllers for flexible joint robots
In this paper the control of exible joint manipulators is studied in detail. A composite control algorithm is proposed for the exible joint robots, which consists of two main part...
H. D. Taghirad, M. A. Khosravi