A Study on the Establishment of an EHL Simulation Model for Failure Mode Analysis of Sliding Bearing

Abstract

This study was performed to establish an EHL(elasto-hydrodynamic lubrication) simulation model to analyze the failure mode of sliding bearings. Bearings are essential elements that support the load of mechanical systems that perform various motions such as rotational and translational motions and reduce friction to facilitate smooth motion. Friction is one of the causes of various failures such as system vibration, noise, and durability problems. To minimize friction, various lubrication conditions are being considered. Among various lubrication conditions, a bearing that forms a thin oil film on the friction surface to facilitate movement is called a hydrodynamic bearing or sliding bearing. Hydrodynamic bearings are known as bearings suitable for high-speed and high-load environments, and are evaluated to have excellent vibration-noise performance. As mentioned above, hydrodynamic bearings are used in various fields such as engine crankshaft bearings and hard disk spindle bearings of