Enhanced chain dynamics in loop-sorting-systems by means of layout optimization and a kinematic model of the polygon action

  • Søren Emil Sørensen
  • Michael R. Hansen
  • Morten K. Ebbesen
  • Ole Ø. Mouritsen
Industrial Application


Poor dynamics owing to polygon action is a known concern in mechanical applications of closed articulated chains. In this paper a kinematic model of the polygon action in large chains of loop-sorting-systems is proposed. Through optimization techniques the chain dynamics is improved by minimizing the polygon action using a parametric model of the track layout as design variables. Three formulations of the kinematic polygon action are tested on an average sized planer tracks layout to find a superior model. Verification of the proposed optimization method is performed using a state-of-the-art multi-body simulation model of the chain dynamics.


Loop-sorting-systems Polygon action Optimization Multi-body dynamics 



We would like to thank the Danish Agency for Science Technology and Innovation ( for financing the industrial Ph.D. project “Automatic Design of Sorting Systems”. We would also like to thank Crisplant A/S ( for being most kind in providing information and materials for the presented optimization method.


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Copyright information

© Springer-Verlag 2011

Authors and Affiliations

  • Søren Emil Sørensen
    • 1
  • Michael R. Hansen
    • 2
  • Morten K. Ebbesen
    • 2
  • Ole Ø. Mouritsen
    • 1
  1. 1.Department of Mechanical and Manufacturing EngineeringAalborg UniversityAalborgDenmark
  2. 2.Department of EngineeringUniversity of AgderGrimstadNorway

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