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- Title
Ag 和 MoS<sub>2</sub> 镀层对低温涡轮泵球轴承动态行为及 功耗的影响.
- Authors
张超杰; 张文虎; 苗旭升; 李亮; 邓四二
- Abstract
Aimed at solid lubrication characteristics of ball bearings for cryogenic turbopumps, the dynamic model and power loss calculation model of the bearings are established based on experimental study of friction coefficient between Ag, MoS2 coating coated on 440C steel substrate groove and steel balls, and the dynamic behavior and power loss of the bearings with PTFE cages during action stage of Ag and MoS2 coatings are studied. The dynamic behavior and power loss of Ag and MoS2 coatings bearings were analyzed by taking the bearings for cryogenic turbopumps as research objects, the results show that the maximum slip rates of cages for the bearings with two kinds of coatings are both less than 6% ;the power loss of contact area for the bearings with MoS2 coating is about 1/3 of that for the bearings with Ag coating, and the power loss caused by fluid resistance are of little difference; MoS2 coating can be applied to ball bearings for cryogenic turbopumps.
- Publication
Bearing, 2023, Issue 11, p7
- ISSN
1000-3762
- Publication type
Article
- DOI
10.19533/j.issn1000-3762.2023.11.002