Analysis of Lubrication Performance of Hot Fluid of Journal Bearing under the Coexistence State of Fluid with Laminar Flow and Turbulence
[1]WANG Ying-jia,LIU Min-shan,CEN Shao-qi,et al.Analysis of Lubrication Performance of Hot Fluid of Journal Bearing under the Coexistence State of Fluid with Laminar Flow and Turbulence[J].Journal of Zhengzhou University (Engineering Science),2013,34(05):43-47.[doi:10.3969/j.issn.1671-6833.2013.05.009]
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Journal of Zhengzhou University (Engineering Science)[ISSN
1671-6833/CN
41-1339/T] Volume:
34
Number of periods:
2013 05
Page number:
43-47
Column:
Public date:
2013-09-10
- Title:
- Analysis of Lubrication Performance of Hot Fluid of Journal Bearing under the Coexistence State of Fluid with Laminar Flow and Turbulence
- Keywords:
- journal bearing ; laminar flow ; turbulence; coexist ; thermal effect
- CLC:
- TH117TH133
- Abstract:
- In this paper, the characteristics of an infinitely wide journal bearing are investigated theoretically.In the bearing the laminar flow and turbulence,so-called coexistence state,are assumed to be existed simulta-neously in the oil film. And the thermal effect of lubrication oil is also considered. Under previous assump-tions,the coupling governing equations of bearing such as Reynolds equation,energy equation and tempera-ture-viscosity equation are solved together. Then we obtain the solutions of pressure,temperature,viscosity ,friction and carrying-capacity fields. After we compared these solutions with those under the pure laminar flowstate,some meaningful conclusions are given as follows. If adiabatic condition is satisfied in the bearing,com-pared to pure laminar flow state,bigger load-carrying capacity and friction, larger changing of oil viscosity andhigher temperature will be found under coexistence state.Meanwhile,the load-carrying capacity of bearingsignificantly decreases when thermal effect is taken into account.
- References:
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- Similar References:
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Last Update:
1900-01-01