Film Collapse in EHL and Micro-EHL
Film Collapse in EHL and Micro-EHL
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DOI：
10.1115/1.2920631
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发表时间：
1991-04
影响因子：
2.5
通讯作者：
J. Shieh;B. Hamrock
中科院分区：
文献类型：
--
作者：
J. Shieh;B. Hamrock
压力，膜厚度，和流线型图案内的润滑连接在弹性流体动力学和微弹性流体动力学润滑的各种操作参数。采用圆形非牛顿流体模型，并考虑了周期性的静止表面不规则性。比较了不同工况下的计算结果，说明了弹流和微弹流问题中油膜坍塌的原因。速度，滑辊比，和表面不规则性的影响进行了研究，在建立时，薄膜崩溃是更容易发生。涡流的发生和驻点的位置内的连接显示为所考虑的操作参数。
The pressure, film thickness, and streamline patterns within the lubrication conjunction in elastohydrodynamic and microelastohydrodynamic lubrication are presented for various operating parameters. The circular non-Newtonian fluid model was used and periodic stationary surface irregularities were considered. Results obtained from different operating parameters are compared to illustrate the reason why film collapses occur in EHL and micro-EHL problems. Effects of speed, slide-roll ratio, and surface irregularity were studied in establishing when film collapse is more likely to occur. The occurrence of vortices and the location of the stagnation point within the conjunction are shown for the operating parameters considered.