TY - JOUR
T1 - An innovative dynamic model for vibration analysis of a flexible roller bearing
AU - Liu, Jing
AU - Tang, Changke
AU - Shao, Yimin
N1 - Publisher Copyright:
© 2019 Elsevier Ltd
PY - 2019/5
Y1 - 2019/5
N2 - Due to the centrifugal forces and external loads, the components of a cylindrical roller bearing (CRB) will produce elastic deformations, which will significantly influence the bearing vibrations. In this work, an innovative analytical dynamic model is proposed to provide an in-depth vibration analysis of a CRB with the flexible rollers, races, shaft, and housing. In this model, the structure deformations of the roller and races caused by the centrifugal forces and external loads are formulated, as well as the shaft and housing deformation. Both the nonlinear Hertzian contact force, lubricating oil film, and roller mass are also modelled. The above parameters cannot be completely described by the previous rigid dynamic models in the reported literature. Influences of the roller deformations, race deformations, external load, and rotational speed on the vibrations of the flexible and rigid CRBs are analyzed. The results indicate that the elastic deformations of the rollers and races have a significant influence on the vibrations of the CRB. Comparisons of the listed results show that this work can provide a more accurate and reasonable dynamic modelling method for a flexible CRB system.
AB - Due to the centrifugal forces and external loads, the components of a cylindrical roller bearing (CRB) will produce elastic deformations, which will significantly influence the bearing vibrations. In this work, an innovative analytical dynamic model is proposed to provide an in-depth vibration analysis of a CRB with the flexible rollers, races, shaft, and housing. In this model, the structure deformations of the roller and races caused by the centrifugal forces and external loads are formulated, as well as the shaft and housing deformation. Both the nonlinear Hertzian contact force, lubricating oil film, and roller mass are also modelled. The above parameters cannot be completely described by the previous rigid dynamic models in the reported literature. Influences of the roller deformations, race deformations, external load, and rotational speed on the vibrations of the flexible and rigid CRBs are analyzed. The results indicate that the elastic deformations of the rollers and races have a significant influence on the vibrations of the CRB. Comparisons of the listed results show that this work can provide a more accurate and reasonable dynamic modelling method for a flexible CRB system.
KW - Cylindrical roller bearing (CRB)
KW - Dynamic model
KW - Flexible components
KW - Structure deformations
KW - Vibration analysis
UR - http://www.scopus.com/inward/record.url?scp=85060735097&partnerID=8YFLogxK
U2 - 10.1016/j.mechmachtheory.2019.01.027
DO - 10.1016/j.mechmachtheory.2019.01.027
M3 - 文章
AN - SCOPUS:85060735097
SN - 0094-114X
VL - 135
SP - 27
EP - 39
JO - Mechanism and Machine Theory
JF - Mechanism and Machine Theory
ER -