TY - GEN
T1 - Research on Dynamic Friction Characteristics of Tapered Roller Bearing-Rotor System Considering Flexibility Effects
AU - Li, Haizhen
AU - Liu, Zitan
AU - Ma, Shuaijun
AU - Zhang, Pan
AU - Yan, Ke
AU - Hong, Jun
N1 - Publisher Copyright:
© The Chinese Mechanical Engineering Society 2026.
PY - 2026
Y1 - 2026
N2 - The low friction design of tapered roller bearings is crucial for enhancing the reliability of rotating machinery systems. However, under high-speed and heavy-load conditions, the elastic deformation of the rotor significantly impacts the bearing’s operational performance. To this end, this paper constructs the differential equations of motion for the bearing assembly and rotor system based on rigid body motion laws and finite element analysis methods. By real-time coupling of both systems, a bearing-rotor system dynamics model is developed, and experimental verification of the rotor system’s frictional torque is conducted to confirm the accuracy of the model. Based on this, the influence of operating conditions, unbalanced mass, and rotor structure on the dynamic friction characteristics of tapered roller bearings is investigated. The results show that the impact of unbalanced mass on the bearing’s frictional torque is affected by both the rotational speed and the eccentricity of the mass disk. When the rotor is unbalanced, significant differences in the frictional characteristics of the bearing supports exist on both sides.
AB - The low friction design of tapered roller bearings is crucial for enhancing the reliability of rotating machinery systems. However, under high-speed and heavy-load conditions, the elastic deformation of the rotor significantly impacts the bearing’s operational performance. To this end, this paper constructs the differential equations of motion for the bearing assembly and rotor system based on rigid body motion laws and finite element analysis methods. By real-time coupling of both systems, a bearing-rotor system dynamics model is developed, and experimental verification of the rotor system’s frictional torque is conducted to confirm the accuracy of the model. Based on this, the influence of operating conditions, unbalanced mass, and rotor structure on the dynamic friction characteristics of tapered roller bearings is investigated. The results show that the impact of unbalanced mass on the bearing’s frictional torque is affected by both the rotational speed and the eccentricity of the mass disk. When the rotor is unbalanced, significant differences in the frictional characteristics of the bearing supports exist on both sides.
KW - Friction characteristics
KW - Rotor system
KW - Tapered roller bearing
UR - https://www.scopus.com/pages/publications/105041224088
U2 - 10.1007/978-981-95-7342-4_69
DO - 10.1007/978-981-95-7342-4_69
M3 - 会议稿件
AN - SCOPUS:105041224088
SN - 9789819573417
T3 - Mechanisms and Machine Science
SP - 985
EP - 997
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 -