Numerical prediction of damping in structures with frictional joints
Numerical prediction of damping in structures with frictional joints
- New search for: Wentzel, Henrik
- New search for: Olsson, Marten
- New search for: Wentzel, Henrik
- New search for: Olsson, Marten
In many vehicles and space structures, friction in bolted joints is the primary source of energy dissipation during vibrations. Several simplified finite element models have proven their capacity to describe the energy dissipation owing to micro-slip in joints. However, these simplified models require extensive physical testing in order to extract model parameters. This paper proposes a methodology based on non-linear FE-analysis of the loading on joints for numerical evaluation of the energy dissipation due to a micro-slip. The methodology is extended to allow for computation of modal damping in vibrating structures. Presented applications include studies of an isolated joint as well as a more complex structure subjected to dynamic excitation.
Document information
Numerical prediction of damping in structures with frictional joints
Numerische Prognose der Dämpfung in Strukturen mit Reibschlussverbindungen
International Journal of Vehicle Noise and Vibration ; 2 , 2 ; 125-142
2006
18 Seiten, 11 Bilder, 4 Tabellen, 9 Quellen
Article (Journal)
English
Anwendung im Fahrzeugbau , Anwendung in der Luft- und Raumfahrt , Reibschlussverbindung , Prognose , Finite-Elemente-Methode , Dissipation , mechanische Schwingung , Dimensionierung , Schwingungsdämpfung , theoretisches Modell , Schwingungsverhalten , Schwingungssystem , Stahlkonstruktion , Bolzenverbindung , dynamische Beanspruchung , Reibung (Metall-an-Metall) , Nichtlinearität , Lkw (Lastkraftwagen) , Rechnersimulation , dynamisches Verhalten
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