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Article
An accurate numerical integration scheme for finite rotations using rotation vector parametrization
Journal of the Franklin Institute (2010)
  • Susanta Ghosh, Indian Institute of Science, Bangalore
  • D. Roy, Indian Institute of Science, Bangalore
Abstract
A numerical integration procedure for rotational motion using a rotation vector parametrization is explored from an engineering perspective by using rudimentary vector analysis. The incremental rotation vector, angular velocity and acceleration correspond to different tangent spaces of the rotation manifold at different times and have a non-vectorial character. We rewrite the equation of motion in terms of vectors lying in the same tangent space, facilitating vector space operations consistent with the underlying geometric structure. While any integration algorithm (that works within a vector space setting) may be used, we presently employ a family of explicit Runge–Kutta algorithms to solve this equation. While this work is primarily motivated out of a need for highly accurate numerical solutions of dissipative rotational systems of engineering interest, we also compare the numerical performance of the present scheme with some of the invariant preserving schemes, namely ALGO-C1, STW, LIEMID[EA] and SUBCYC-M. Numerical results show better local accuracy via the present approach vis-á-vis the preserving algorithms. It is also noted that the preserving algorithms do not simultaneously preserve all constants of motion. We incorporate adaptive time-stepping within the present scheme and this in turn enables still higher accuracy and a ‘near preservation’ of constants of motion over significantly longer intervals.
Disciplines
Publication Date
August 2, 2010
DOI
10.1016/j.jfranklin.2010.07.006
Publisher Statement
© 2010 The Franklin Institute.
Citation Information
Susanta Ghosh and D. Roy. "An accurate numerical integration scheme for finite rotations using rotation vector parametrization" Journal of the Franklin Institute Vol. 347 Iss. 8 (2010) p. 1550 - 1565 ISSN: 0016-0032
Available at: http://works.bepress.com/susanta-ghosh/7/