Simulation of hydrodynamic journal bearings in ANSYS Mechanical
Structural mechanics
Fluid mechanics
Integration of hydrodynamic lubricating film behavior into the structural mechanics FEM analysis – journal bearings
The behavior of shafts with journal bearings very much depends on the static and dynamic properties of the lubricating film in the journal bearings. Elastohydrodynamics (EHD) has established itself for the simulation of lubricating film formation.
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The behavior of shafts with journal bearings very much depends on the static and dynamic properties of the lubricating film in the journal bearings. Elastohydrodynamics (EHD) has established itself for the simulation of lubricating film formation.
With Tribo-X inside ANSYS, you can conveniently and efficiently carry out the computation of hydrodynamic journal bearings in ANSYS Mechanical. The objective is to correctly dimension the bearings as well as realistically map the rotational speed-dependent stiffnesses and dampings in dynamic FEM analyses.
Areas of application:
Coupling of hydrodynamics and FEM
Determination of journal bearing coefficients (stiffness and damping coefficients) for the following rotor dynamics analyses
Bearing deformations
Mixed friction
Cavitation and bearing capacity
Parameter studies
Features:
Complete integration of journal bearing computation with Tribo-X in ANSYS Workbench
Short computation times despite high degree of detail
Inclusion of elastic bearing deformations and their effects on gap geometry
Complete mapping of the Stribeck curve through the inclusion of mixed friction
Identification of rotational speed- and load-dependent bearing coefficients
Fully parametric workflow
Tribo-X inside ANSYS – Radial Bearing EHD
Simulation of the hydrodynamic or elastohydrodynamic behavior of radial journal bearings
Tribo-X inside ANSYS – Linear Rotordynamics
Extension to determine rotational speed-dependent linear stiffness and damping coefficients for the following rotor dynamics analyses (additionally required: Tribo-X inside ANSYS – Journal Bearing EHD)
Tribo-X inside ANSYS – Mixed Lubrication
Extension to include mixed friction states (additionally required: Tribo-X inside ANSYS – Radial Bearing EHD)
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