Elastohydrodynamic Rotational Lubrication Analysis on the Multi-Body Dynamic Properties of Journal-Bearing Systems

Yunn Lin Hwang; Adhitya Adhitya

doi:10.4028/p-pTK9SD

Paper Titles

Effect of Laser Surface Modification on Texture, Roughness, Wettability and Surface Energy of Hastelloy C22, C276 & X
p.3

Die Design and Forging Analysis of Piston Connecting Rod of Aluminum Alloy
p.17

Development of Manufacturing Process for High-Chromium Steel Large Welding Roll
p.23

Elastohydrodynamic Rotational Lubrication Analysis on the Multi-Body Dynamic Properties of Journal-Bearing Systems
p.33

Effects of the Lubricants on the Tribology Properties under the Extreme Pressure for the Induction-Treated Linear Guides
p.41

Wear of the 3D Printed Polylactic Acid Elements Sliding against the Synthetic Resins at the Higher Speed Friction
p.47

Fatigue Crack Propagation in 5754 Aluminum Alloy under Four-Point Bending
p.55

Physical Experiments and DEM Simulations for Erosion of Iron Target by Two Impingements of Al₂O₃ Particle with Impingement Angles of Double 90º
p.63

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Elastohydrodynamic Rotational Lubrication Analysis on the Multi-Body Dynamic Properties of Journal-Bearing Systems

Abstract:

This research aims to investigate the properties of elastohydrodynamic rotational lubrication analysis on journal-bearing systems. To simulate elastohydrodynamic lubrication on journal-bearing systems, the Elasto-Hydro-Dynamic (EHD) solver is combined with the Multi-Body Dynamic (MBD) solver to create MBD virtual environment with lubricant. The hydrodynamic lubricant is governed by using the Reynolds equation, whereas the elastic contact is governed using Greenwood and Tripp theories. The simulation is performed by changing the operating conditions such as the speed, load, and clearance between two surfaces. One can find these parameters’ effects such as film thickness, hydrodynamic pressure, and friction. The result shows that the friction induced by shaft speed is similar to the Stribeck curve on mixed lubrication regime. Consequently, the clearance, speed, and load will not only affect the friction but also affect the hydrodynamic pressure and film thickness.