Closure to “Discussion of ‘Thermohydrodynamic Analysis of Cooling Effect of Supply Oil in Circular Journal Bearing’” (1983, ASME J. Lubr. Technol., 105, pp. 420–421)
Closure to “Discussion of ‘Thermohydrodynamic Analysis of Cooling Effect of Supply Oil in Circular Journal Bearing’” (1983, ASME J. Lubr. Technol., 105, pp. 420–421)
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“关于‘圆形轴颈轴承供油冷却效果的热流体动力学分析’的讨论”结束（1983 年，ASME J. Lubr. Technol.，105，第 420-421 页）
DOI：
10.1115/1.3254631
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发表时间：
1983
期刊：
影响因子：
--
通讯作者：
Masato Tanaka
中科院分区：
文献类型：
--
作者：
J. Mitsui;Y. Hori;Masato Tanaka
结论在THD分析的基础上，从理论和实验两方面研究了供油对径向滑动轴承的冷却效果。在理论推导过程中引入了混合系数ijmix，研究了供油量对冷却效果的影响，理论计算结果与实验结果吻合较好。通过观察润滑油在透明塑料轴承中的流动行为，研究了润滑油对冷却机理的影响。在空泡区存在着进入收缩流光留下的空间的回流，这似乎在很大程度上有助于空泡区的冷却效果。通过理论热平衡与实验热平衡的比较，得到了混合系数与供油量的关系。发现混合系数保持在大约0.4至0.8的范围内。
ConclusionThe cooling effect of the supply oil in the circular journal bearing was investigated theoretically and experimentally based on THD analysis. The mixing coefficient ijmix was introduced in the course of the theoretical development to investigate the cooling effect as influenced by the supply oil flow rate.The theoretical results were in good agreement with the experimental ones. The cooling mechanism affected by the supply oil was also investigated by observing the oil flow behavior through the transparent plastic bearing. The existence of the backward flow into spaces left by the contracted streamers in the cavitation region was recognized, and it certainly seemed contributive to the cooling effect in the cavitation region to a substantial extent. The relation between the mixing coefficient and the supply oil flow rate was obtained from the comparison between the theoretical and the experimental heat balances. It was found that the mixing coefficient remained within the range roughly from 0.4 to 0.8.