Semi-Active Friction Damping of Flexible Lightweight Structures
- 392 Downloads
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.
KeywordsFriction Force Normal Force Friction Joint Truss Structure Vibration Suppression
Unable to display preview. Download preview PDF.
- 2.Gaul L, Albrecht H, Wirnitzer J (2001) Damping of structural vibrations using adaptive joint connections and neural control, In: Suleman A, (ed) CISM Courses and Lectures: Smart Structures 429: 86–97 ( Udine, Italy )Google Scholar
- 6.Hanss M, Oexl S, Gaul L (2002) Simulation and analysis of structural joint models with uncertainties. In: Proc. of the International Conference on Structural Dynamics Modeling–Test, Analysis, Correlation and Validation. pp. 165–174Google Scholar
- 9.Moore BC (1981) Principal component analysis in linear systems: Controllability, observability, and model reduction. IEEE Trans. Automatic Control vol. AC-26(1): 17–32Google Scholar
- 10.Gawronski WK, Juang J-N (1990) Model reduction for flexible structures. Control and Dynamic Systems: Advances in Theory and Application 36: 143–222Google Scholar
- 14.Lane JS, Ferri AA, Heck BS (1992) Vibration control using semi-active friction damping. In: Friction-induced vibration, chatter, squeal, and chaos. ASME 49: 165–171Google Scholar
- 19.Dyke SJ et.al. (1996) Lyapunov design of damping controllers. Arch. Appl. Mech. 5: 565–575Google Scholar