双圆弧槽液黏调速离合器摩擦副间流体空化效应分析

发布时间：2018-04-14 18:39

本文选题：液黏调速离合器 + Fluent　；参考：《机械传动》2017年09期

【摘要】：以摩擦片为双圆弧槽的液黏调速离合器为研究对象,运用Fluent流体分析软件对离合器一对摩擦副间的油液流体空化效应进行数值计算,分析了转速、油液黏度对油液空化区域的影响及空化前后油膜承载力的变化。结果表明,空化区域形状呈现为"竖直长条状",空穴产生分布最先出现在半径方向外侧,且沿半径增大方向更显著;减小转速及油液黏度可以有效减缓空化;油槽深度越大及油槽数目越多,油液含气率越小;确定油槽深度大于0.3 mm和油槽数目大于45为最佳;空化效应影响摩擦副的性能,减小了油膜承载力;随槽深增大、油槽数目减小,空化现象对油膜承载力的影响更为显著。
[Abstract]:The fluid fluid cavitation effect between a pair of friction pairs of the clutch was numerically calculated by using Fluent fluid analysis software and the rotational speed was analyzed by taking the liquid-viscosity speed-regulating clutch with the friction disc as the double arc groove as the research object.The effect of oil viscosity on oil cavitation area and the change of oil film bearing capacity before and after cavitation.The results show that the cavitation region is "vertical and long" in shape, the cavitation generation distribution first appears outside the radius direction, and is more obvious along the radius increasing direction, and the decrease of rotational speed and oil viscosity can effectively slow down the cavitation.The greater the depth of oil tank and the more the number of oil tanks, the smaller the gas content of oil; the best is to determine that the depth of oil tank is greater than 0.3 mm and the number of oil tanks is greater than 45. Cavitation effect affects the performance of friction pairs and reduces the bearing capacity of oil film.With the decrease of the number of oil tanks, the effect of cavitation on the oil film bearing capacity is more significant.
【作者单位】：太原理工大学机械工程学院;
【基金】：山西省软科学研究项目(2012041038-01) 山西省自然科学基金(201601D102028)
【分类号】：TH133.4

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