Speaker
Description
One approach to decrease emissions and improve the efficiency of combustion engines is reducing friction losses, especially in the interface between piston ring and cylinder liner. Therefore, a new application-oriented reciprocating long-stroke tribometer at component level as well as a new multi-body system / elastohydrodynamic simulation model are evaluated by studying crank angle resolved friction data. The simulation allows investigating the local nominal gap height and the division of the pressure in its hydrodynamic and asperity contact contributions in detail. The results show that this combined tribological testing method obtains a quantifiable distinction between the investigated tribological systems and in general a high correlation between measured friction results and simulation, which prospectively allows further investigations and parameter studies of reciprocating contacts.
| Speaker Country | germany |
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