TY - JOUR
T1 - Skidding behavior of lubricated rolling element bearings under the influence of oil film and radial clearances
AU - Xu, Minmin
AU - Wang, Mingchun
AU - He, Dong
AU - Ding, Xiaoxi
AU - Shao, Yimin
AU - Gu, Fengshou
N1 - Funding Information:
This research is supported in part by Guangxi Natural Science Foundation ( 2023JB160179 ), Guangxi Science and Technology Major Program ( AA23062029 ) and Key Program of National Natural Science Foundation of China ( 52035002 ). This research is also a memory of Prof. Yimin Shao.
Publisher Copyright:
© 2024 Elsevier Ltd
PY - 2024/6/1
Y1 - 2024/6/1
N2 - Skidding is an inevitable phenomenon in rolling element bearing but accelerates the bearing wear and shortens the bearing life. Recognizing skidding behavior under different clearances will benefit to bearing health monitoring. In this study, an improved bearing dynamic model is developed to investigate its vibration characteristics and skidding behavior taking into all bearing structure components, time-varying oil film characteristics and bearing clearances. A novel method is proposed to include time-varying oil film stiffness and thickness under different clearances into the bearing dynamic model. A fast algorithm is adopted through interpolation during the model solving process. Furthermore, vibration responses and skidding behavior under different clearances are analyzed. Finally, a designed synchronous differential encoder (SDE) system tests the skidding behavior of bearings and verifies the proposed model through measuring the angular velocity of cage transformed by distance test. Numerical result shows that both RMS and ball pass frequency of outer race (BPFO) increase with bearing clearances. The slip ratio represents growth with the increase of bearing clearances, which is verified by the designed experiment with good consistency with the simulation. It can be foreseen that this novel dynamic model with SDE system can be well performed for bearing skidding detection and fault detection.
AB - Skidding is an inevitable phenomenon in rolling element bearing but accelerates the bearing wear and shortens the bearing life. Recognizing skidding behavior under different clearances will benefit to bearing health monitoring. In this study, an improved bearing dynamic model is developed to investigate its vibration characteristics and skidding behavior taking into all bearing structure components, time-varying oil film characteristics and bearing clearances. A novel method is proposed to include time-varying oil film stiffness and thickness under different clearances into the bearing dynamic model. A fast algorithm is adopted through interpolation during the model solving process. Furthermore, vibration responses and skidding behavior under different clearances are analyzed. Finally, a designed synchronous differential encoder (SDE) system tests the skidding behavior of bearings and verifies the proposed model through measuring the angular velocity of cage transformed by distance test. Numerical result shows that both RMS and ball pass frequency of outer race (BPFO) increase with bearing clearances. The slip ratio represents growth with the increase of bearing clearances, which is verified by the designed experiment with good consistency with the simulation. It can be foreseen that this novel dynamic model with SDE system can be well performed for bearing skidding detection and fault detection.
KW - Rolling element bearing
KW - Skidding behavior
KW - Radial clearance
KW - Time-varying oil film
KW - Nonlinear dynamic model
UR - http://www.scopus.com/inward/record.url?scp=85187224449&partnerID=8YFLogxK
U2 - 10.1016/j.triboint.2024.109500
DO - 10.1016/j.triboint.2024.109500
M3 - Article
VL - 194
JO - Tribology International
JF - Tribology International
SN - 0301-679X
M1 - 109500
ER -