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Institute of Geometry

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Reserach area: Kinematics and Robotics

 

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The research in this area on the one hand deals with the geometry and kinematics of special mechanisms with a focus on applications and on the other hand (more theoretically) we investigate the kinematics of different groups, for instance the kinematics of non-Euclidean geometries.
A major issue are overconstrained linkages, i.e., moveable mechanisms with a theoretical degree of freedom less than one.
Another topic is motion interpolation where a given set of poses of a rigid body is interpolated by a smooth motion. CAD-methods and the concept of kinematic mapping are applied.

 

 

 

Publications
  • P. Fazekas, O. Röschel, and B. Servatius. The kinematics of a framework presented by H. Harborth and M. Möller. Beitr. Algebra Geometrie, to appear. [doi].
  • O. Karpenkov. On stratifications for planar tensegrities with a small number of vertices. Geometry Preprint 2012/01, TU Graz, January 2012. [arxiv:1201.3557].
  • P. Zsombor-Murray and A. Gfrerrer. Mapping similarity between parallel and serial architecture kinematics. Meccanica 46/1 (2011), 183-194. [doi].
  • F. Doray, O. Karpenkov, and J. Schepers. Geometry of configuration spaces of tensegrities. Discrete Comput. Geom. 43/2 (2010), 436-466. [MR], [doi].
  • O. N. Karpenkov. On the flexibility of Kokotsakis meshes. Geom. Dedicata 147 (2010), 15-28. [MR], [doi].
  • A. Gfrerrer. Geometry and kinematics of the Mecanum wheel. Comput. Aided Geom. Des. 25 (2008), 784-791. [MR].
  • A. Gfrerrer. Axial equiform Bricard motions. Grazer math. Berichte 352 (2008), 17 - 40.
  • A. Hofmeister, W. Sextro, and O. Röschel. Error-workspace analysis of plane mechanisms. In Proc. EUCOMES, pages 1-12. 2006.
  • S. Mick and O. Röschel. Frameworks generated by the octahedral group. KoG 9 (2005), 3-10.
  • H. Wresnik. Bewegungen mit ebenen Bahnen im einfach isotropen Raum. I, II. Rad Hrvat. Akad. Znan. Umjet. Mat. Znan. 15 (2005), 23-47, 49-71.
  • A. Gfrerrer and P. J. Zsombor-Murray. Robotrac mobile 6R closed chain. In Proc. CSME Forum, pages 21-24. 2002, ISBN 0-9730900-1-4. CD.
  • O. Röschel. New models of moveable polyhedra. In V. Mykhailenko, editor, Proc. 10th Int. Conf. on Geometry and Graphics, volume 1, pages 127-131. 2002.
  • J. Lang, S. Mick, and O. Röschel. The rigidity rate of positions of Stewart-Gough platforms. J. Geom. Graph. 5/2 (2001), 121-132. [MR].
  • O. Röschel. Zwangläufig bewegliche Polyedermodelle. III. Math. Pannon. 12/1 (2001), 55-68. [MR].
  • A. Gfrerrer and P. J. Zsombor-Murray. Kinematics of a two-legged manipulator with actuated spherical joints. In Proc. 2nd Workshop Computational Kinematics. 2001. held May 19-22 2001, Seoul.
  • A. Gfrerrer. Study's kinematic mapping - a tool for motion design. In J. Lenarcic and M. M. Stanisic, editors, Recent Advances in Robot Kinematics, pages 7-16. 2000.
  • O. Röschel. Möbius mechanisms. In J. Lenarcic and M. M. Stanisic, editors, Advances in Robot Kinematics, pages 375-382. Kluwer, 2000.
  • A. Gfrerrer. On the construction of rational curves on hyperquadrics. Grazer Math. Berichte 340 (1999), 1-69. [MR].