Semi-Active Friction Damping of Flexible Lightweight Structures

  • Lothar Gaul
  • Hans Albrecht
  • Jan Wirnitzer
Part of the Computational Methods in Applied Sciences book series (COMPUTMETHODS, volume 1)


The present approach for vibration suppression of flexible structures is based on friction damping in semi-active joints. At optimal locations conventional rigid connections of a large truss structure are replaced by semi-active friction joints. Two different concepts for the control of the normal forces in the friction interfaces are implemented. In the first approach each semi-active joint has its own local feedback controller, whereas the second concept uses a global, clipped-optimal controller. Simulation results of a 10-bay truss structure show the potential of the proposed semi-active concept.


Friction Force Normal Force Friction Joint Truss Structure Vibration Suppression 
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Copyright information

© Springer-Verlag Berlin Heidelberg 2004

Authors and Affiliations

  • Lothar Gaul
    • 1
  • Hans Albrecht
    • 1
  • Jan Wirnitzer
    • 1
  1. 1.Institute A of MechanicsUniversity StuttgartGermany

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