Friction and Tribology Simulation

GT-SUITE assesses the impact of operating conditions and design parameters on friction and seek low friction designs

Key Engine Friction Modeling Elements

Friction and TribologyPREDICTIVE MODELS OF FRICTION LOSSES IN ENGINES & OTHER SYSTEMS

This functionality uses the validated fundamental tribological elements of GT-SUITE, including oil film hydrodynamics and EHD contact models, a statistical asperity contact model, and also on the ability to take temperature, pressure and shear rate dependence of lubricant viscosity, as well as geometrical details, into account.

Application of these elements enable GT-SUITE to model, at each friction interface, the share of load carried hydrodynamically vs. by contact, which is essential to accurate prediction of friction.

In addition to friction, models predict secondary motions (orbits, film thicknesses), oil flow, wear load, contact deformations, Hertz stress and temperature rise. Tribological elements are used directly, inside GT-SUITE MBD models of moving parts of engines, pumps etc. which provide the speeds and load at friction interfaces.

Friction and TribologyAPPLICATION HIGHLIGHTS

Click on image to enlarge

  • Journal bearing oil film models: Mobility or HD with cavitation, 2-D or 3-D
  • Journal bearings: orbit, MOFT, flow, friction, oil temperature rise, wear load
  • Contact EHD modeling (valvetrains, chains, gears, etc.)
  • Piston skirt and guide oil film hydrodynamics, secondary motions
  • Piston ring oil films, friction, effects of oil starvation, bore distortion
  • Thrust bearings in crankshafts and turbochargers, high-speed inertia effects
  • Turbocharger “double-bush” bearings
  • Roller bearing EHD contacts and friction
  • Detailed reporting of engine friction components

Advanced Features

  • Root cause investigation of wear and seizure issues
  • Fully integrated with lubrication system models
  • Fast simulation times suitable for multi-variable DoEs
  • Automatic extraction of surface statistical properties
  • 1D and 2D Surface Micro-texturing
  • Fully integrated with MBD models of cranktrains, valvetrains, others
  • Surface geometry

Run Integrated Simulations with:

  • Cranktrain
  • Valvetrain
  • Timing Drive (e.g. chain)
  • Bearings and EHD
  • GT-POWER (e.g. transients)
  • Oil circuit/Lube system

Ready to learn more about GT’s simulation capabilities?

Reach out to us with questions about our technology or to discuss your current simulation needs.

Learn more about Friction and TribologyPREDICTIVE FRICTION OF ENGINE & MECHANICAL SYSTEMS

View Brochure

FrictionTribology_Page_1

Learn more about Friction and Tribology RELATED GT APPLICATIONS

Ready to learn more about GT’s simulation capabilities?

Reach out to us with questions about our technology or to discuss your current simulation needs.