温黏热效应对圆锥动静压浮环轴承润滑承载特性影响分析

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振动与冲击 ›› 2024, Vol. 43 ›› Issue (23) : 108-118.

论文

温黏热效应对圆锥动静压浮环轴承润滑承载特性影响分析

杨帅1,2，侯军兴3，安晓东1，王晓鹏1，赵树森1，张绍林2

作者信息 +

Temperature-viscosity thermal effect on lubrication load carrying characteristics for a conical hydrodynamic/hydrostatic floating ring bearing#br#

YANG Shuai1，2, HOU Junxing3, AN Xiaodong1, WANG Xiaopeng1, ZHAO Shusen1, ZHANG Shaolin2

Author information +

文章历史 +

摘要

为研究润滑油温黏热效应对圆锥动静压浮环轴承性能的影响，构建内、外膜热流体润滑控制方程组，采用有限元法和有限差分法耦合求解Reynolds方程、能量方程、温黏关系式及浮环平衡方程，结合轴承温度测量实验获得油膜温度场分布特征，分析不同转速、偏心率工况下轴承承载力、摩擦力矩、端泄流量等润滑承载特性的变化规律，揭示温黏热效应对最小油膜厚度的影响。结果表明：油膜温度场不均匀分布现象明显，深腔与进油槽油膜温度较低，封油面附近油温迅速升高；温黏热效应使轴承在高转速下的承载能力下降，端泄流量增加；内外层最小油膜厚度随进油温度的升高而减小，为避免承载力下降引起局部油膜破裂及润滑失效，有必要在轴承设计分析阶段考虑温黏热效应的影响。

Abstract

To study the lubricant temperature-viscosity thermal effect on the conical hydrodynamic/hydrostatic float-ing ring bearing performance, the thermohydrodynamic lubrication governing equations were established, the Finite Element Method and Finite Difference Method were used to solve Reynolds equation, energy equation, temperature-viscosity equation and floating ring equilibrium equation simultaneously, and oil film temperature distribution was described from the bearing temperature measuring experiment further. The variation regular of lubrication bearing characteristics including load carrying capacity, friction moment and side leakage flow were analyzed, the influence of temperature-viscosity thermal effect on the minimum film thickness was revealed. The results show that there exists a non-uniform temperature distribution, the film temperature is lower relatively in the deep pocket, and it climbs rapidly near the bearing land. Thermal ef-fect decreases the load carrying capacity, whereas increases the side leakage flow at high speed. Inner and outer minimum film thickness drop with the increase of inlet temperature, to avoid oil film rupture and even lubrication failure caused by load carrying capacity decline, it is essential to consider the influence of temperature-viscosity thermal effect at the stage of bearing design and analysis.

导出引用

杨帅1, 2, 侯军兴3, 安晓东1, 王晓鹏1, 赵树森1, 张绍林2. 温黏热效应对圆锥动静压浮环轴承润滑承载特性影响分析[J]. 振动与冲击, 2024, 43(23): 108-118

YANG Shuai1, 2, HOU Junxing3, AN Xiaodong1, WANG Xiaopeng1, ZHAO Shusen1, ZHANG Shaolin2. Temperature-viscosity thermal effect on lubrication load carrying characteristics for a conical hydrodynamic/hydrostatic floating ring bearing#br#[J]. Journal of Vibration and Shock, 2024, 43(23): 108-118

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