《A simplified elastohydrodynamic contact model capturing the nonlinear vibration behaviour》.pdf

Tribology International ] (]]]]) ]]]–]]] Contents lists available at SciVerse ScienceDirect Tribology International journal homepage: /locate/triboint A simplified elastohydrodynamic contact model capturing the nonlinear vibration behaviour Benedikt Wiegert n, Hartmut Hetzler, Wolfgang Seemann ¨ Institute of Engineering Mechanics (Institut fur Technische Mechanik, ITM), Karlsruhe Institute of Technology (KIT), Kaiserstraße 10, 76131 Karlsruhe, Germany a r t i c l e i n f o a b s t r a c t Article history: A simplified model of elastohydrodynamic line contacts is presented. It consists of a series connection Received 18 October 2011 of a hydrodynamic and a Hertzian force element and is particularly suitable for nonlinear analysis of Received in revised form oscillatory systems. 6 January 2012 Since the model is based on physical reflections rather than on numerical curve fits it reveals the physical Accepted 7 February 2012 parameters. Due to its simplicity and compactness it allows for fast calculations and thus lends itself to investigations of large and complex mechanical systems with numerous elastohydrodynamic contacts. Keywords: To demonstrate the usefulness of this model, the nonlinear vibration behaviour of a 1-DoF oscillator Elastohydrodynamic lubrication incorporating an elastohydrodynamic c