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冲击载荷下不同载液磁流体直齿圆柱齿轮的弹流润滑数值分析
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国家自然科学基金面上项目(51575289);国家自然科学基金青年科学基金项目(51705270)


Nonsteadystate EHL Analysis of Impact Load in Involute Spur Gear under Different Carrier Fluid Ferrofluid
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    摘要:

    建立磁流体润滑渐开线直齿轮的弹流润滑模型,应用多重网格法和多重网格积分法, 求得直齿轮非稳态弹流润滑问题的完全数值解,分析冲击载荷对不同载液磁流体弹流润滑的影响。冲击载荷作用下, 探究两直齿轮接触点压力和膜厚的变化规律。结果表明:二酯基D01磁流体的膜厚最大,压力最小;酯基H02磁流体的膜厚最小,压力最大;二酯基D01磁流体润滑膜在冲击载荷作用下,传动比越大,压力越小,膜厚越大;二酯基D01磁流体润滑膜在冲击载荷作用下,传递功率越大则轮齿上的载荷越大,压力越大,膜厚越小。

    Abstract:

    The elastohydrodynamic lubrication (EHL) model of ferrofluid lubricated involute spur gears was established, and the full numerical solution of the unsteady elastohydrodynamic lubrication problem of spur gears was obtained by using multigrid method and multigrid integral method. The effects of different carrier fluids on elastohydrodynamic lubrication of spur gears under impact load were analyzed. Considering of impact load, the change rules of pressure profile and oil film thickness of two tooth contact points were obtained. The results show that the film thickness of two esterD01 ferrofluid is the largest, the pressure is the smallest, and the esterbased H01 magnetic fluid has the lowest film thickness and maximum pressure.The larger the ratio, the smaller the pressure and the greater the film thickness under the impact load of the D01 ferrofluid lubrication film. The larger the load on the tooth, the greater the pressure and the smaller the film thickness under the impact load of the D01 ferrofluid lubrication film.

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赵晶晶,王优强.冲击载荷下不同载液磁流体直齿圆柱齿轮的弹流润滑数值分析[J].机床与液压,2019,47(22):20-23.
. Nonsteadystate EHL Analysis of Impact Load in Involute Spur Gear under Different Carrier Fluid Ferrofluid[J]. Machine Tool & Hydraulics,2019,47(22):20-23

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  • 在线发布日期: 2020-03-12
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