期刊
APPLIED MATHEMATICAL MODELLING
卷 77, 期 -, 页码 554-584出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.apm.2019.07.058
关键词
Axial piston pump; Textured slipper bearings; Elastohydrodynamic; Load-carrying capacity
资金
- National Natural Science Foundation of China [51805376, 51505338]
- Zhejiang Provincial Natural Science Foundation of China [LQ17E050003]
- Open Foundation of the State Key Laboratory of Fluid Power and Mechatronic Systems [GZKF-201719]
- Basic Scientific Research Projects Foundation of Wen Zhou [G20180019]
- Zhe Jiang Special Support Program for High-level Personnel Recruitment of China [2018R52034]
To introduce the elastohydrodynamic lubrication effect caused by the pressure distribution under a surface-textured slipper, the slipper's load-carrying capacity is studied. An elastohydrodynamic model was established to analyse the load-carrying capacity at different rotational speeds and load pressures. The comprehensive effects of tilting angle, area density, dimple depth to diameter ratio, and operating conditions are investigated. The results indicate that the optimum film thickness with the maximum stiffness coefficient can be obtained by adjusting the rotational speed, but the load-carrying capacity is slightly lower than that of a rigid surface considering the textured-surface deformation. The load-carrying capacity enhancement of a textured-surface slipper bearing is obvious at the optimum tilting angle, but the maximal load-carrying capacity becomes lower at a higher tilting angle. A textured slipper with an area density and a dimple depth to diameter ratio of 24% and 0.3, respectively, can generate a high load-carrying capacity under an elastohydrodynamic lubrication condition. (C) 2019 Elsevier Inc. All rights reserved.
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