Dynamic Behaviours of Line Contact Tribopairs under Transient Elastohydrodynamic Lubrication
[1]Xia Bogan,Xu Mengxia.Dynamic Behaviours of Line Contact Tribopairs under Transient Elastohydrodynamic Lubrication[J].Journal of Zhengzhou University (Engineering Science),2019,40(06):68-72.[doi:10.13705/j.issn.1671-6833.2019.03.006]
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Journal of Zhengzhou University (Engineering Science)[ISSN
1671-6833/CN
41-1339/T] Volume:
40卷
Number of periods:
2019 06
Page number:
68-72
Column:
Public date:
2019-11-16
- Title:
- Dynamic Behaviours of Line Contact Tribopairs under Transient Elastohydrodynamic Lubrication
- Keywords:
-
mill transmission system ; substructure ; modal test ; response surface method ; model updating
- CLC:
- TU528.1
- DOI:
- 10.13705/j.issn.1671-6833.2019.03.006
- Abstract:
- The transient elastohydrodynamic lubrication model of linecontact among roller bearing, gear, cam and other tribopairs are developed. The variations of thickness of the contact solid’s center film under free vibrations of the contact solid are solved based on the compound direct iterative method. According to the variation of the thickness of the contact solid’s center film, the influence of the dimensionless natural frequencies determined under different mass, the different initial disturbance modes and the different excitation frequencies on the equivalent stiffness and damping of the tribopairs are studied. The results demonstrate that the thickness of the contact solid’s center film fluctuates in the vicinity of the equilibrium position, and with the increase of mass, the vibration period of the contact solid increases and the vibration amplitude decreases.The dimensionless natural frequency determined under different mass has little effect on the stiffness and damping of the tribopairs. The stiffness and damping of the tribopairs are independent of the initial disturbance mode and have nothing to do with the excitation frequency.
- References:
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Last Update:
2019-11-25