Bearings, EHD Simulation

GT-SUITE offers best in class bearing modeling

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Bearings, EHDAPPLICATION HIGHLIGHTS

  • Fast running Mobility method bearing model

    • Rigid or dynamic joint options
    • Accurate flow rate solution for many bearing types
    • Distorted clearance shape input option
    • Quasi-steady load deformation model option
    • Automatic speed and load recognition for crank and cam bearings
    • Direct connection with flow network

    Finite Element HD bearing model

    • Rigid or dynamic joint
    • Mass conserving cavitation algorithm
    • 2D planar or 3D planar and tilt
    • Distorted clearance shape input option
    • Dynamic elasticity (EHD) with deformable bodies
    • Journal-side flexibility (Double-EHD)
    • Arbitrary feed and drain features
    • Parametric axial and circumferential profile input methods

Thrust bearings

  • Map based or Finite Element HD options
  • Mass conserving cavitation algorithm
  • Simple linear or any user defined wedge profile can be input
  • Grooves can be considered between pads
  • Completely arbitrary shaped mesh domains

Roller bearings

  • Ball or needle style bearings supported
  • Heuristic model for load distribution and friction torque
  • Stiffness and Friction based on ISO standards

Bearings, EHDBEST IN CLASS MODELING OPTIONS

These bearings can be easily integrated into system level models of cranktrains, valvetrains, oil systems and more. Additionally, there are dedicated models for thrust bearings and roller (ball/needle) type bearings.

Advanced Features

  • Film thickness at the edge when considering journal tilt
  • Temperature rise using thermal balance model
  • Oil film pressure distribution in HD bearings
  • Density distribution in HD bearings
  • Cavitation in HD bearings
  • Minimum film thickness
  • Metal-to-metal contact
  • Peak oil film pressure
  • Flow rate
  • Power Loss
  • Journal orbit

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Ready to learn more about GT’s simulation capabilities?

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