On the effect of starved lubrication on elastohydrodynamic (EHL) line contacts
On the effect of starved lubrication on elastohydrodynamic (EHL) line contacts
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DOI：
10.1016/j.triboint.2017.06.004
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发表时间：
2018-02
影响因子：
6.2
通讯作者：
M. Ebner;M. Yılmaz;T. Lohner;K. Michaelis;B. Höhn;K. Stahl
中科院分区：
文献类型：
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作者：
M. Ebner;M. Yılmaz;T. Lohner;K. Michaelis;B. Höhn;K. Stahl
齿轮中的高负载弹流润滑接触经常在缺乏润滑的情况下运行，尽管是无意的。这通常与导致寿命缩短的混合润滑状态相关。因此，本研究的目的是调查饥饿润滑对弹流接触的操作行为的影响。通过在FZG双盘试验台上测量摩擦行为，研究了不同初始油体积和表面结构的情况。初始油体积的分析计算的间隙填充因子被分配给实验。结果表明，非常少量的初始油是足够的润滑和不同的操作行为的周边研磨，轴向研磨和抛光表面。所有的实验都伴随着表面照片和粗糙度测量。
Highly-loaded EHL contacts in gears often operate under starved lubrication, albeit unintentionally. This is frequently correlated to mixed lubrication regimes resulting in reduced lifetime. Consequently, the aim of this study is to investigate the effect of starved lubrication on the operating behaviour of EHL contacts. Different amounts of initial oil volumes and surface structures were investigated by measuring the frictional behaviour at the FZG twin-disk test rig. Analytically calculated gap fill factors for initial oil volumes were assigned to the experiments. Results show that a very small amount of initial oil is sufficient for lubrication and different operating behaviours for peripherally ground, axially ground and polished surfaces. All experiments were accompanied by surface photos and roughness measurements.