TY - GEN
T1 - The Influence of Rotational Speed and Clearance on Fluid Drag Loss in Cylindrical Roller Bearings
AU - Zhang, Jing
AU - Li, Jiaqi
AU - Li, Yuyao
AU - Yi, Haoran
AU - Chen, Fei
AU - Yan, Ke
AU - Hong, Jun
N1 - Publisher Copyright:
© The Chinese Mechanical Engineering Society 2026.
PY - 2026
Y1 - 2026
N2 - As a critical component of high-end equipment such as aero-engines, the lubrication performance of cylindrical roller bearings directly impacts the operational reliability of the equipment. To thoroughly reveal the variation patterns of fluid drag loss within the bearing cavity under different rotational speeds and clearance conditions, this study constructs a high-precision fluid dynamics model of cylindrical roller bearings based on fluid dynamics theory. By introducing a rotating coordinate system, the motion relationships between the bearing components are accurately described. On this foundation, a research method for internal fluid drag loss in rolling bearings based on Computational Fluid Dynamics (CFD) is proposed, systematically quantifying the distribution characteristics of fluid drag loss within the bearing cavity. By varying key parameters such as rotational speed, pocket clearance, and guide clearance, the influence of these factors on fluid drag loss is thoroughly investigated, providing a scientific basis for the optimization of lubrication design in cylindrical roller bearings. This research offers essential theoretical guidance and support for bearing lubrication design and the enhancement of bearing operational reliability.
AB - As a critical component of high-end equipment such as aero-engines, the lubrication performance of cylindrical roller bearings directly impacts the operational reliability of the equipment. To thoroughly reveal the variation patterns of fluid drag loss within the bearing cavity under different rotational speeds and clearance conditions, this study constructs a high-precision fluid dynamics model of cylindrical roller bearings based on fluid dynamics theory. By introducing a rotating coordinate system, the motion relationships between the bearing components are accurately described. On this foundation, a research method for internal fluid drag loss in rolling bearings based on Computational Fluid Dynamics (CFD) is proposed, systematically quantifying the distribution characteristics of fluid drag loss within the bearing cavity. By varying key parameters such as rotational speed, pocket clearance, and guide clearance, the influence of these factors on fluid drag loss is thoroughly investigated, providing a scientific basis for the optimization of lubrication design in cylindrical roller bearings. This research offers essential theoretical guidance and support for bearing lubrication design and the enhancement of bearing operational reliability.
KW - Cylindrical roller bearing
KW - Fluid drag loss
KW - Two-phase flow
UR - https://www.scopus.com/pages/publications/105041190079
U2 - 10.1007/978-981-95-7342-4_73
DO - 10.1007/978-981-95-7342-4_73
M3 - 会议稿件
AN - SCOPUS:105041190079
SN - 9789819573417
T3 - Mechanisms and Machine Science
SP - 1033
EP - 1045
BT - Advances in Mechanical Design - Proceedings of the 2025 International Conference on Mechanical Design ICMD 2025
A2 - Tan, Jianrong
A2 - Liu, Zhenyu
A2 - Hu, Weifei
PB - Springer Science and Business Media B.V.
T2 - International Conference on Mechanical Design, ICMD 2025
Y2 - 9 May 2025 through 11 May 2025
ER -