Abstract
The time lag of bearing deformation caused by viscoelasticity cannot be ignored under time-varying load. This paper proposes a new temporal correlation micro visco-elastohydrodynamic lubrication (T-MVEHD) model. It corrects the calculation method of deformation for dynamically loaded bearings based on the finite element method and viscoelastic constitutive equation and improves the efficiency by uncoupling the stiffness and Reynolds equations. Further, it is applied to the lubrication analysis of internal combustion engine bearing. The simulation results show that the discernment of the new model to the impact is increased by 29.6% than the micro elastohydrodynamic lubrication model. It has better continuity and compatibility when the lubrication state changes and captures the asperity contact of connecting rod bearing 12° in advance.
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