New developments on the Geometric Nonholonomic Integrator
Abstract
In this paper, we will discuss new developments regarding the Geometric Nonholonomic Integrator (GNI) [23, 24]. GNI is a discretization scheme adapted to nonholonomic mechanical systems through a discrete geometric approach. This method was designed to account for some of the special geometric structures associated to a nonholonomic motion, like preservation of energy, preservation of constraints or the nonholonomic momentum equation. First, we study the GNI versions of the symplectic-Euler methods, paying special attention to their convergence behavior. Then, we construct an extension of the GNI in the case of affine constraints. Finally, we generalize the proposed method to nonholonomic reduced systems, an important subclass of examples in nonholonomic dynamics. We illustrate the behavior of the proposed method with the example of the Chaplygin sphere, which accounts for the last two features, namely it is both a reduced and an affine system.
Keywords
Cite
@article{arxiv.1312.1587,
title = {New developments on the Geometric Nonholonomic Integrator},
author = {Sebastián Ferraro and Fernando Jiménez and David Martín de Diego},
journal= {arXiv preprint arXiv:1312.1587},
year = {2014}
}
Comments
28 pages. v2: Added references and the example of the Chaplygin sphere