FEV has launched Virtual Engine 25.1, which offers enhancements for elastohydrodynamic journal bearing and piston-liner simulation as well as an advanced friction analysis for chain drives.
“With the new release, we have added important functionality to FEV Virtual Engine that enables significant test cell development work to be replaced by simulation,” explained Prof. Stefan Pischinger, president and CEO of the FEV Group. “Virtual Engine enables rapid and reliable predictions of drivetrain dynamics, resulting in dramatic reductions in the required development time.”
Additionally to the proven one-sided elastohydrodynamic approach, the analysis now includes two-sided elastohydrodynamics, so that the local deformations of both the journal and bearing surfaces are calculated. This is particularly important for journal designs with lower stiffness such as hollow journals or piston pins.
Meanwhile, the friction model of chain drive elements has been extended with a viscous friction model. Chain friction analysis now covers the combination of internal and external chain friction results to assess the total timing chain drive friction. Total friction can be calculated over a user-defined simulation time interval.
May 31, 2017