A Methodology to Simulate Piston Secondary Movement under Lubricated Contact Conditions

Günter Offner; Hubert M. Herbst; Hans H. Priebsch

doi:10.4271/2001-01-0565

2001-03-05

A Methodology to Simulate Piston Secondary Movement under Lubricated Contact Conditions 2001-01-0565

The authors want to introduce a general methodology for the simulation of the dynamics of the piston-liner contact considering a realistic oil film at inner liner wall. Because of the complexity of this problem and in order to minimize computing time a twin model was developed. Firstly, a simplified model is used to compute piston motion trends and piston ring lubrication in minimum simulation time. Secondly a very detailed model simulating multi-body dynamics, surface vibrations and elasto-hydrodynamic contact is applied.

Both, the theoretical background of the twin model and the advantages of the coupled simulation procedure given in the wide range of considerable influences are discussed. The result examples focus on interaction effects of piston secondary movement and the influence of the available oil film. Finally, the status of verification of the models using measured results is shown.

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A Methodology to Simulate Piston Secondary Movement under Lubricated Contact Conditions 2001-01-0565

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