Semi-active friction damping of large space truss structures

Issue title: Dedicated to Professor Bruno Piombo

Article type: Research Article

Authors: Gaul, L. | Albrecht, H. | Wirnitzer, J.

Affiliations: Institute A of Mechanics, University Stuttgart, Germany

Note: [] Corresponding author. E-mail: [email protected]

Abstract: 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.

Journal: Shock and Vibration, vol. 11, no. 3-4, pp. 173-186, 2004