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We investigate the fundamental physics of high-speed rotating machinery, with a particular focus on bearings, rotors, gears, lubrication, thermal behavior, and structural dynamics. Our research combines contact mechanics, elastohydrodynamic lubrication, rotor dynamics, thermal network modeling, and experimental validation to understand and prevent critical failure mechanisms such as skidding, cage instability, excessive heat generation, and dynamic vibration. These studies support the design of safer and more reliable aero-engine, marine, and industrial rotating systems.
Related works
Related works
H.M. Song, S.H. Kim, D.M. Kim, J.-S. Park, S.J. Kim (C.A.),"Thermal Network Analysis of the Outer Ring Cooling Method for a High-Speed Aero-Engine Bearing", International Journal of Aeronautical and Space Sciences, 2026.
J.W. Jung, J.H. Ha, S.H. Jeong, S.J. Kim (C.A.),"Rapid structure and vibration analysis of the rotor sail based on automated analysis platform and kriging method", Ocean Engineering, 2025.
D.M. Kim, S.H. Hong, S.H. Jeong, S.J. Kim (C.A.), "Analysis of Dynamic Characteristics of Rotor Sail using a 4DOF Rotor Model and Finite Element Model," Journal of Marine Science and Engineering, 2024.
S.J. Kim, "Micro-geometry deviation to reduce the cage slip of high-speed cylindrical roller bearings," Journal of Mechanical Science and Technology, 2023.
S.J. Kim, "Analytical consideration of the radial clearance to reduce cage slip of the turbo engine roller bearing," Journal of Mechanical Science and Technology, 2021.
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