期刊
TRIBOLOGY INTERNATIONAL
卷 136, 期 -, 页码 299-316出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.triboint.2019.03.060
关键词
Tilting pad thrust bearing; Elastohydrodynamic lubrication; Boundary slippage; Parametric quadratic programming; Kriging surrogate model
资金
- National Natural Science Foundation of China [51401045, 51575077]
- National Basic Research Program of China [2015CB057300]
- Foundation for Innovative Research Groups of the National Natural Science Foundation of China [51621064]
Boundary slippage modeling and optimization of the hydrophobic tilting pad thrust bearing with elastic deformation are conducted to obtain the optimal lubricating film geometry and power loss. The modified Reynolds equation combining with a nonlinear slip control equation of the limiting shear stress model is transformed to a series of linear complementary problems to be solved by the parametric quadratic programming technique. An optimization approach based on the Kriging surrogate model is developed to optimize the slip/no-slip configuration of the thrust pad. The effect of homogeneous slipping and heterogeneous slip/no-slipping coupled with elastic deformation on minimum film thickness and power loss is studied for the tilting pad thrust bearing with the flexible lining materials.
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