Two-scale EHL: Three-dimensional topography in tilted-pad bearings
Two-scale EHL: Three-dimensional topography in tilted-pad bearings
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二维 EHL:倾斜瓦轴承的三维形貌
DOI:
10.1016/j.triboint.2014.05.019
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发表时间:
2014
影响因子:
6.2
通讯作者:
De Boer G
中科院分区:
文献类型:
--
作者:
De Boer G
Derived from the Heterogeneous Multiscale Methods (HMM), a two-scale method is developed for the analysis of Elastohydrodynamic Lubrication (EHL) and micro-EHL in tilted-pad bearings with three-dimensional topography. A relationship linking the pressure gradient to mass flow rate is derived and represented in the bearing domain through homogenisation of near-periodic simulations describing the Fluid Structure Interaction (FSI) of topographical features. For the parameters investigated the influence of compressibility and piezoviscosity was found to be more significant than that of non-Newtonian (shear-thinning) behaviour on textured bearing performance. As the size of topography increased two-scale solutions demonstrated that at constant load the coefficient of friction increased and the minimum film thickness decreased over a range of pad lengths and tilt angles.
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DOI:
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发表时间:
1998
期刊:
影响因子:
--
作者:
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2002
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